Can A Bad Vvt Solenoid Cause A No Start

You want to use motor oils that are high in reducing friction. tp senors would cause that on older (pre 96) trucks occasionally… injector wouldn’t cause a no start without other symptoms like missing at other times…. So I think my fuel cutoff solenoid is going bad. If there is not any sound from the starter when you turn the key, then it is highly that the solenoid is bad. This is my write-up about how to replace the CVVT Solenoid for any of you that get the CEL with code P1332 ("Camshaft Reset Valve") and have narrowed it down to the solenoid. YouTube: Replace a Camshaft Actuator GM. If the car is turning over. That's not a bad thing. Starter – Your starter may be loose, so make sure it is bolted in place. Mystery #2 A diesel that will turn over, but not start. A bad jump can also blow out 2 amps which are located between the ECM and the firewall. In the instance of a transmission solenoid, excessive ATF temps can cause fluid coagulation and the debris can get caught in there occluding the mechanism. It cost $8. Here's a checklist on what might be causing it. Cause: Improper or bad wiring. If battery checks come back alright, you can almost assuredly narrow the root cause down to power not reaching the solenoid. The BMW VANOS does this, so that may explain the behavior when cold. No matter which one, the result is just optimised for a particular speed. And while some are just irksome, some can leave you stranded in the middle of nowhere. I now know the issue and "just" have to track the bad connection down. HOW STARTER SOLENOIDS GO BAD. Now I haven't done a vac test on it yet, so I think that's next. If you can locate solenoid (by battery) check if there are any loose connections, if so tighten them. However, speed alone will not cause a non-shifting or slow-actuating system. 5 volts at that braided wire, and the starter motor was not turning. To diagnose many of the problems, you will need little more than a test light, a volt meter, a vacuum gauge and maybe a can of brake clean. Find helpful customer reviews and review ratings for Auto Parts Prodigy New Variable Valve Timing VVT Control Solenoid For 02-15 Nissan Infiniti 3. If you do get a voltage reading, trace the large wire from the solenoid to the starter and make sure it has no cuts or breaks and that it is tightly connected to the starter. An alternate test is to remove the signal wire and use a small jumper wire from the "always hot" lug to the signal terminal. Early warning for this condition can be identified as a brief rattle noise for approximately 1 second upon a cold start-up. However, most of the cost for this replacement job. The starter solenoid is a fairly simple mechanism that transmits electrical current from the battery to the starter. One factor alone will not cause an issue. I did this on my 2000 V70XC and your results may differ, so don't blame me if you break something. A PTFE solenoid valve, on the other hand, can handle corrosive fluid and harsher gas. It is easy to forget about the spark plugs when their replacement schedule is 100,000 miles. Symptoms of a Bad or Failing Variable Valve Timing Solenoid. Under normal driving conditions, a set of standard spark plugs will usually last about 45,000 miles. The most common symptoms of a bad exhaust gas recirculation valve are: Check Engine Light (CEL) on: due to its crucial role in emissions control expect the Check engine light to come on after driving for a while with a damaged EGR valve. LLY runs great but still has 220k on it. A failing camshaft position sensor (CMP sensor) can produce a confusing range of problems, depending on the way it fails and the model of the car: An intermittent or complete CMP sensor failure while on the road could be dangerous. If other work has just been performed be sure that the #4 injector connector and the fuel pressure solenoid connectors are not swapped. Common Check Engine Light Causes Here is a list of the most common check engine lights (CELs P Codes) and their common causes and common symptoms. fuel pressure not to spec; bad gasoline; worn engine, poor compression; battery/igniter problem; crank/cam position sensor problem; plugged exhaust system; Could be a vvt solenoid, but that's usually accompanied with a diagnostic code. or could it be a crank sensor. First check your battery reference voltage. If your engine oil is dirty, this could be the original cause of the problem. The photo above is the oil control solenoid that gets activated by the PCM. How hard is this wire to track down? Or should I just put a push button in and bypass it. For those not lucky enough to possess a multimeter, there is another simple test you can perform using the bulb and a battery. Answer D is wrong because an open in this circuit will affect the operation of the Bank 2 Camshaft Position Actuator Control Solenoid and set the DTC P1349 for a VVT system malfunction but will not result in a No-start condition (see page 32 of the Composite Vehicle Type 4). An excessive pressure differential across a solenoid valve, or a too high flow rate, can cause humming noises in some valve types. Hello - First time post here, although I've consulted the site many times looking for answers. One has a conventional starting motor. It has a lifetime warranty so i think i will just get it replaced, especially with the pieces that came out of it. But do not worry, the service engine soon light is not as dangerous as it seems. I connected the code scanner one more time and no new fault codes had been stored. Batteries can “self” discharge for various reasons. In most cases, a failed fuel pump or clogged fuel filter will prevent the car from starting. Granted, it might not shift past a particular gear, but you should be able to drive it for a short period of time without causing any serious damage. 2) Choke linkage binding. Ford F250 and F350 Diesel: Why Won't My Truck Start? Diesels have different components that could go wrong and cause them not to start, when compared to a gas engine. Auto zone tested to see if a code would come up and it did not show any. help August 22, 2019 Followup from the Pelican Staff: I can't offer any helpful insight without knowing what is missing from the system when you are trying to start it. Poor choice of oil product for this particular engine- causes carbon build up in the VCT engines and will produce small ball like substance (carbon build up). 3 no start is to simply check the oil level. This is an old video on low resolution, the connector I pulled is from the VVT-i oil control valve (OCV). The solenoid should make an audible click. The purple wire to the glow plug relay can be left disconnected and basically it will never tell the GP relay that you tried to start the car so your plugs will glow after starting. To make an engine start it must be turned at some speed, so that it sucks fuel and air into the cylinders , and compresses it. New plugs, VC gasket, MAF, and crank and cam sensors in January of this year. A shorted out coil winding is one common issue that typically indicates that the solenoid requires replacement. How To Tell If Variable Valve Timing Solenoid Is Bad On Your Car P0010 P0011 P0112 P0013 P0014 P0020 Variable Valve Timing Solenoid (VVT) OBD2 Fault Codes: P0010 P0011 P0012 P0013 P0014 P0015 P0020 P0021 P0022 P0023 P0024 P0025 P0028 P13 Variable Valve Timing Solenoid Replacement. I was able to get it started again but it stalled again a couple more times before I got it home (~. 99% the VVT Pulley being faulty and it needs replacing. If the engine oil level is low, you will also experience problems with VVT operation. The EGR valve can be removed and checked for excessive deposits that might hinder operation. Try to start the engine , if it starts and then turns off you are not getting fuel from your gas tank to the engine. P0022 code with no accompaning engine problems 2009 Ford Taurus X, 60 K miles : Getting P0022 code ( camshaft position actuator A -bank 2 timing over -retarded ) with no problems ie no stalling , no running rough , no starting problems , no gas mileage change. A failing camshaft position sensor (CMP sensor) can produce a confusing range of problems, depending on the way it fails and the model of the car: An intermittent or complete CMP sensor failure while on the road could be dangerous. If the valve will not open, make sure you have turned on the water supply. This is where the user would need to figure out what is wrong with the mower if there seems to be no life with repeated pressing of the start button. Hello - First time post here, although I've consulted the site many times looking for answers. You can do more extensive tests with the proper equipment. If the VVT solenoid fails or is blocked, the lack of proper lubrication can cause the timing chain and gear to prematurely wear or break entirely. Almost all modern cars use VVT technology to improve their performance and fuel economy. A sticking actuator may cause a rough idle and the check engine light to illuminate. The engine performance symptoms noted will be present until the repair is completed, but the engine should not suffer failure due to loss of variable valve timing. and discovered that the vvt was bad. If the control cable has 12 volts during a start attempt then the problem is in the starter, but if it shows no voltage then the problem is in the ignition wiring. Some causes act singly and others in combination. I test fitted the starter and noticed that the pinion does not retract when it is released on the engine stand. No need to buy another turbo if you have a good 1 sitting there. Still need a starter at that point. When that happens, the starter solenoid becomes damaged because you can no longer control its switching function. I can keep trying and eventually it will engage the starter and the mower will start. No fuel in tank. (one block from the house) Fast forward to today. One has a conventional starting motor. You can test the theory by unplugging it to see if the problem goes. This makes the starter motor work a lot harder while trying to overcome engine pre-ignition. Time to hitch a ride to work. BMW VANOS Explained (No Magic Necessary) When accelerating into the higher RPM ranges, the solenoid closes and the cup retracts once again, reducing overlap and going for max power. Bad electrical connections at a shift solenoid or anywhere else in a wiring harness can also cause a failure. Do this test with a normally warmed up engine, so you can tell. It will still start by jumping the solenoid. This would be the FIRST time a blocked screen caused the no start after filling that I have heard or read about on all four of the forums (Enclave. It uses oil pressure to operate the VTC actuator so the valve timing is optimized depending on driving conditions. When it fails, it can also give 'Crank sensor correlation codes'. The mower will start and run when the solenoid is jumped across. Reducing emissions, reducing the need for an EGR valve, improving fuel economy, and getting more performance out of smaller engine sizes tells me that the VVT systems are here to stay. Parts on Amazon were $35 for both where it was $54 each at part stores. No power at the ‘+’ side of the coil in the crank position when there is 12 volts at the “R” terminal on the starter solenoid. I have had a similar fault on VW engines after messing with timing belts/chains (they have both), adjusters, etc. Overall, these are the major causes of bad gas mileage, but the list goes on even further than this. Buy Jeep CRD Fuel Pressure Solenoid 5. The short answer is that, yes, you can usually drive a car with a bad shift solenoid. A slipping transmission will actually shift, but then not produce any power once in gear, whereas a bad solenoid will prevent the shift from occurring in the first place. One of the more uncommon causes can be easily overlooked, and that is what we will discuss in this article. All of them are as follows: 1. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Vacuum leaks, as well as a stuck-open EGR valve or purge valve (solenoid) can cause misfire that mostly happens at idle, but goes away at higher rpms. The modern regen cars must be turned off at a special tow switch. BAD ignition coil pack. The solenoid enables smooth shifting of gears to transmit appropriate speed and torque from the engine to the wheels. The computer commands a certain amount of advance or retard to the VVT system. The missing/cutout might be related to the AFM but I doubt that it is part of the VVT. Noise coming from VVT-i camgear. You certainly don’t want to start here, since a lot of the time it’ll be something else that causes the P0011 to appear. Now you can see the VVT pulley and the VVT solenoid. Battery is new and tested in another machine. But do not worry, the service engine soon light is not as dangerous as it seems. It is mounted to the front passenger side of the cylinder head near the power steering pump. But if you’re in an emergency and your car won’t start,. Depending on the solenoid, you may or may not be able to test it. Once you have done this, clear the code and rescan to see if it is still present. It should be a generic battery type solenoid, so you can get a replacement at your local auto parts or RV store. No change would indicate a bad solenoid or no oil flow through the control valve to the phaser. Various electrical problems can also be the cause of a shift solenoid malfunction. Read the tech article on Chevrolet No Start Fix, brought to you by the experts at Chevy High Performance Magazine. What's the code number off of the engine,I'm just wondering about what year mower this is. Everything else will seem to be working fine, but I go to start my car and I get a click, but no crank. GM's VARIABLE VALVE TIMING It's all about moving pressurized oil to the correct passageway to retard a cam-shaft. This can lead to damage of the VVT system, which can cause the solenoid to fail. Cranks fine but will not start. A large vacuum leak can even make the car run rough at idle. This would be the FIRST time a blocked screen caused the no start after filling that I have heard or read about on all four of the forums (Enclave. All wiring is correct. But you can set codes from P0340 all the way through P0349. Its job is simple: it connects the circuit between the battery and the starter. The Engine Control Module controls Oil Control Valve (OCV) to make the intake valve timing properly, and, oil pressure controlled with OCV is supplied to the VVT controller, and then, VVT controller changes relative position between the camshaft and the. During a shift delay no power is delivered to the drive wheels – it’s as if the shifter is in neutral. Depending on the solenoid, you may or may not be able to test it. I haven't touched mine after it has been running for a while so I don't know how hot or cool it should be. Symptoms of a Bad or Failing Variable Valve Timing Solenoid. The service engine soon light means that there is a minor problem with the electronics or the engine of your car. Engine gets hot, solenoid will not engage. with a fully charged reading of under 12v the battery is bad. intermittant no start but turns over… that eliminates the starter and solenoid. A bad transmission solenoid can result in the malfunctioning of the entire transmission system. No crank, slow crank and stuck starter solenoid problems have the same root causes - low battery voltage and poor connections. problem: voltage drops between battery and starter solenoid. I did this on my 2000 V70XC and your results may differ, so don't blame me if you break something. And best of all, your new Start 'M Up solenoid has cured those hot no-start. It should be a generic battery type solenoid, so you can get a replacement at your local auto parts or RV store. Testing a gas golf cart solenoid is relatively easy. Remove the solenoid and check for debris in the passages. Of course, you can order a new TCM online and ask a mechanic what their hourly labor rates are. intermittant no start but turns over… that eliminates the starter and solenoid. It will still start by jumping the solenoid. Adjust if necessary. # 30 to the terminal on the solenoid that the heavy battery cable is attached to. Check The Starter Solenoid. Press the battery onto the wires which surround the solenoid valve, and then use the torch or lamp bulb to test that there is enough power going through. A slipping transmission will actually shift, but then not produce any power once in gear, whereas a bad solenoid will prevent the shift from occurring in the first place. if you ignored the code and keeped driving then you could have plugged the cat and now have so much back pressure the van just cant start. Variable valve timing is not a new idea. A shorted out coil winding is one common issue that typically indicates that the solenoid requires replacement. you may have a failing volt. The solenoid should make an audible click. An ARX treatment will address this concern. The type of motor oil that you are using can also affect your gas mileage up to 12%. Now, 3 weeks later, I go out in the morning and it won't start. the terminals. ), the following day, the van quit shifting at all and we were stuck in 1st gear on roads with 80km/h limits. Either use a synthetic oil or the oil that the car's manual recommends. A vacuum leak will permit unmetered, outside air into the engine, which can disturb. I don't know if the shift solenoid is the cause or just another symptom. To diagnose many of the problems, you will need little more than a test light, a volt meter, a vacuum gauge and maybe a can of brake clean. I understand that cam/crank sensors can go back pretty easily though. Due to the fact that solenoids depend on inductive coils to operate, many common solenoid problems revolve around this system. The pinion is moved by the solenoid; there is an initial period in which the motor turns slowly to allow engagement, so the whole operation is more gentle and causes less wear on the teeth. A sticking actuator may cause a rough idle and the check engine light to illuminate. Adjust if necessary. for the next engine start. When I pull the pto for the mower deck, the engine shuts off like the key was turned off. Camshaft Position Sensor Replacement Cost. It directly affects the engine performance, as the load taken by it is dependent on the transmission module of the vehicle. 2 injector #30 no. To make an engine start it must be turned at some speed, so that it sucks fuel and air into the cylinders , and compresses it. When cleared it soon reappears again. It happens at random time and generally throws a lean condition on one or both cylinder banks. The engine in your Ford (or Lincoln, or Mercury) car or truck has to be at operating temperature before you start your road-test. But, it can also mean the battery is bad. The cable itself may be damaged, or the connector at the contactor may have come loose. Why? What can you do? A dead battery is the No. A rich condition can becaused by many things believe it or not a clogged air filter will cause a rich fuel mixture because it increases vacuum inside the carburetor. Since it’s fairly easy to full out and clean/test I start with this. No matter which one, the result is just optimised for a particular speed. We take it to Hyundai Service dept who tells me they could not properly diagnose the no start with engine not running, perform compression/leak down tests with active codes 223 445 2106. But you can set codes from P0340 all the way through P0349. Many manufactures are using these systems on their engines and automatic transmission as does Porsche. Electrical Systems Test 3. I have wired the seat safety together. BMW E90 E91 E92 E93 Vanos Solenoid Replacement 325i 335i 328i 330i N52K N54. This is often the cause of the stalling. This is what causes the filter blockage of the solenoid and causes it to fail and potential engine failure. Parts on Amazon were $35 for both where it was $54 each at part stores. Bike will not start. If the solenoid is not functioning properly, the vehicle may not start. Sometimes, this will jar the starter and cause it to work temporarily. The most common, and easiest to fix, cause is loose or corroded connections in the high current circuit. If when it 'clicks' and doesn't turn and the light does not indicate power, then the problem is either in the solenoid or in the connections coming from the battery to the solenoid (but not in the key circuit if I'm using a remote start swithc). In case of VVT Solenoid’s malfunctioning, improper lubrication can result in gear and timing chain damage. The VVT solenoid performs better with clean engine oil. I bought the oil pressure switch and have had it for about 3 weeks. Chevrolet HHR Engine Problems See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. They fail internally, or they leak oil into the connector cavity. 99% the VVT Pulley being faulty and it needs replacing. This would be the FIRST time a blocked screen caused the no start after filling that I have heard or read about on all four of the forums (Enclave. A starter solenoid is a major component of an automotive starter system. If the starter is bad (locked up) it can make the clicking noise and not start the engine. 99% the VVT Pulley being faulty and it needs replacing. You certainly don't want to start here, since a lot of the time it'll be something else that causes the P0010 to appear. Yes the oil level. All wiring is correct. BAD crankshaft position sensor. I bought the oil pressure switch and have had it for about 3 weeks. This procedure does not apply to cars equipped with Denso engine management systems, engine code 61 and 64. Both systems have two separate electrical circuits a control circuit and a motor circuit. Service Engine Soon Light Meaning. A lack of oil pressure, enough oil or similarly related lubrication issues can cause problems with your VTEC system. A faulty Vanos solenoid valve is a fairly common occurrence on just about any modern BMW. It will be carrying very little current, so a small wire works fine. How You Can Tell Whether Your LS has VVT. The EGR valve can be removed and checked for excessive deposits that might hinder operation. Part of that system is a starter solenoid. The code is for Intake Camshaft Position Actuator Solenoid Valve Control. I know the battery is getting weak, would a weak battery cause the starter not to be able to fully come out and engage? Starter does appear to have some slop in it, but it's only a year old. First check your battery reference voltage. Continues coming up with a code p1111 the VTC solenoid, even if I clear codes it will come back as soon. A defective solenoid may cause problems like shifting into the wrong gear, or not shifting at all. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Today I start the vehicle and return with the light again and the same codes P0011 and P0021 Bank A and Bank B. Or, you can remove the oil flow control solenoid (Engine OFF) and apply voltage. Due to the fact that solenoids depend on inductive coils to operate, many common solenoid problems revolve around this system. Clogged oil screen(s. Problems that might cause your car to act like it has a bad starter solenoid can include: Bad battery - If the battery voltage is low it will be unable to provide enough power to start your engine. Various electrical problems can also be the cause of a shift solenoid malfunction. It only clicks, or does nothing at all. Starter – Your starter may be loose, so make sure it is bolted in place. I can only assume that there must be a short or open circuit allowing voltage to still carry to the vvt after the car is shut off. No tendency at all to want to fire. This is often the cause of the stalling. As with many engine problems, a bad. It is mounted to the front passenger side of the cylinder head near the power steering pump. Here's a checklist on what might be causing it. To see how frequently Chevrolet HHR problems occur, check out our car reliability stats. A quick down and dirty test is to short the wire to the Solenoid for a second or two at idle [no more!] - you should note a change in idle. If your valve is not equipped with a bleeder screw then open the valve by turning the solenoid (the black device with two wires coming out of it) ¼ of a turn. Re: What makes a solenoid go bad, or not start, after 2-3 cuts, with a new one ! I'm having the same problem on my Airens Emperor with a Tech. I can't even get mine to start currently. The solenoid is not strong enough to pull against it when it heat soaks and expands making the problem worse. If you have only 3 glow plugs working and you use starting fluid on it you are going to cause engine damage very quickly. Batteries can "self" discharge for various reasons. I am getting a very loud audible solenoid click but the starter does not do anything. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are necessary. Most people would assume that the starter is bad if it only clicks, but low-voltage can cause the starter to make this sound. If codes P008 and P0009 are not present, you will need to connect factory equivalent scan tool to monitor camshaft position on the affected bank. #TVXL 195, 8hp. I don't know if the shift solenoid is the cause or just another symptom. The fuel is being sucked up constantly so if there is crud it would not just block it during start up. Now, unplug the connector going into the VVT Solenoid (highlighted in the yellow circle in the above picture) and start the engine. The concept of increasing low- and high-speed engine torque by automatically advancing and retarding valve timing isn't a new thing. A faulty shift solenoid can cause delayed shifts of a few seconds or up to one minute or longer. If its loose the starter will spin and not crank engine. Bad solenoid may be causing vehicle to stall Replacing that solenoid should solve the problem and it is not very hard to do. It is mounted to the front passenger side of the cylinder head near the power steering pump. Could a bad solenoid cause the engine to stall? (code P0755) 4 Answers. Do a visual inspection of the bank 1 variable valve timing (VVT) component and the solenoid valve. There are several reasons that could cause the bypass circuit to fail: Faulty starter solenoid. And best of all, your new Start 'M Up solenoid has cured those hot no-start. The only option here is to systematically dig up the lawn until you find the bad pipe. The computer commands a certain amount of advance or retard to the VVT system. One of the more uncommon causes can be easily overlooked, and that is what we will discuss in this article. Due to the fact that solenoids depend on inductive coils to operate, many common solenoid problems revolve around this system. If when it 'clicks' and doesn't turn and the light does not indicate power, then the problem is either in the solenoid or in the connections coming from the battery to the solenoid (but not in the key circuit if I'm using a remote start swithc). If in fact it is the solenoid, you can wire Tie it in the open position and run the engine to where you need to get it replaced, remember the engine will not shut off until the wire tie is removed. Transmission will not shift into third gear without letting off the gas, valve body solenoid problem. Although regular maintenance and servicing can keep your car in good condition, the starter may fail due to age, wear and tear. Here's a diagnostic that'll save you money. But you can set codes from P0340 all the way through P0349. Problems with the solenoid are usually similar to those of inadequate fluid levels or fluid leaks. As with engines before the days of Electronic Fuel Injection (EFI), stumble had two basic causes- incorrect ignition and incorrect fuel/ air mixture for the required operating condition. I don't know if the shift solenoid is the cause or just another symptom. check the engine for fire to the spark plugs. The problem is that the solenoid is not getting current in key position III - thus it doesn't crank. One has a conventional starting motor. When the factory VCT solenoids fail it can lead to poor fuel economy, a check engine light (CEL), and rough running conditions on your F-150, Expedition, or other Ford vehicle. This would be the FIRST time a blocked screen caused the no start after filling that I have heard or read about on all four of the forums (Enclave. 3 Ways To Test A Starter Solenoid Wikihow3 Ways To Test A Starter Solenoid Wikihow3 Ways To Test A Starter Solenoid WikihowSymptoms Of A Bad Or Failing Starter Relay Yourmechanic AdviceBad Starter Symptoms Why Won T My Car Start Axleaddict3 Ways To Test A Starter Solenoid WikihowWhat Causes Car Battery To Drain Runs Down3 Ways…. May 04, 2010 · 1 Answer. Its job is simple: it connects the circuit between the battery and the starter. You will hear and feel the difference when you try to shift. A PTFE solenoid valve, on the other hand, can handle corrosive fluid and harsher gas. Granted, it might not shift past a particular gear, but you should be able to drive it for a short period of time without causing any serious damage. A sticking actuator may cause a rough idle and the check engine light to illuminate. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on the 4A-GE 20-Valve engine. To do a quick test for no fuel get a can of starting fluid or propane and spray some into the air intake system through a hole where there is a fitting or hose opening to the throttle body/carb/etc. Luckily, troubleshooting, repair or replacement of solenoids is. It should be noted that this solenoid gets a real workout, and is a common failure in these engines as they age. If left unrepaired, the slipping will ruin (burn or fry) the friction clutches and bands causing transmission failure. He said it could be working fine when the engine is cold and when it gets hot the fuel solinoid starts to go bad. They include the following. That is why your car struggles to start if solenoid is broken or worn out. If the solenoid is not letting the appropriate amount of oil into the system, then too much or too little oil could cause the engine to idle roughly. If these symptoms are present, the VVT solenoid must be inspected and cleaned as described below. A vehicle equipped with a V-8 engine does not crank fast. Read honest and unbiased product reviews from our users. 3 Symptoms of a Bad Oil Control Valve in Your Vehicle Last Updated July 15, 2019 by Kevin In this article we are going to discuss about one part of the variable valve timing system in your vehicle, This part called oil control valve. A bad starter can manifest itself in a cranking noise without engine turnover, a clicking when the ignition button is pressed, or a mower that simply does not respond to attempts to start. I here this everyday from customer calling stating their gas cart wont crank. Check The Starter Solenoid. Can't see the glow plugs. My vehicle started running bad sometimes. Bad electrical connections at a shift solenoid or anywhere else in a wiring harness can also cause a failure. intermittant no start but turns over… that eliminates the starter and solenoid. We take it to Hyundai Service dept who tells me they could not properly diagnose the no start with engine not running, perform compression/leak down tests with active codes 223 445 2106.