Golf IV / Jetta IV :: VR6 Won't Start When Engine Is Warm
Aug 23, 2010
Mmkay.. 2000 GTI VR6.. Will start initially, when engine is cold (sat overnight, or through the work day) but once the engine is at normal running temp, if you shut it off, it wont start. Acts like its out of gas.. have to "prime" and keep hitting the gas pedal while cranking, to (sometimes) get it to start when warm, and then it runs like crap until I get a few miles down the road.
Brand new plugs and wires, and just this evening, pulled a plug, and its obviously fouled, and covered with unburnt gas. Coil Pack maybe?
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I have a 03 vw jetta gli and whenever the engine is warm when it was recently on, takes a while to start like 3-5 second but normal when it is a cold start..
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I have a 99.5 golf gls with an 02' engine in it. 5 Speed, neuspeed supercharged with a bunch of other stuff done to it.
I've had this issue as long as I've owned the car (3-4 years). Starting the car cold, it usually fires right up and can drive it e, no problem. However, when I get the car up to operating temp and turn the car off, if I immediately try and restart the car it either :
A.) chokes but will fire or
B.) will have a long crank and usually starts hard.
Another thing I noticed is that at low RPM right after the clutch has been engaged, the car seems to almost hesitate like something is holding it back, even if I give it more gas. I have checked my codes with Vag com and the only CEL I have it for not having a post cat o2 sensor (picks up that the heater circuit is unplugged). I also have run some diagnostics on my fuel trim and both long and short term fuel trim are within spec. I tested two different mafs and both were around 2.5g/s at idle. Checked for vac leaks and didn't have any.
I have read that a dead/dying crank sensor can give me the symptoms I have, but I seem to be lacking a symptom where the CEL is on for the sensor, and my car doesn't randomly die when driving. So my question is, have any of you had the same symptoms but no CEL?
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So, the very first time it happened was the weekend after I installed my new motor mounts I am not sure if it is a coincidence or if there was something that I touched while installing that is causing the car to act this way. So I notice that it's more common on the wet days even though I have started to doubt this recently as well. The instrument cluster illuminates CEL and EPC for a brief second and the car feels like it looses all power and sometimes even stalls when at idle but then after that goes away it runs like a champ. Also ever since this started happening the car is really hard to start after it sits off for few minutes when at normal running temperature. Right, when it happened I tried to scan it and I thought it was the scanner that was not able to communicate with it but that wasn't it since I have tried over 10 different kinds now( that includes the ones that have scanned my car with no problem before). I did have the CEL to stay on once but I still couldn't scan it and it went away by itself or I have reset it by disconnecting the battery. Its really driving me crazy and I am stuck but not giving up on this car, I love it too much and it's been very faithful to me so far! I mean there was literally two days recently when the weather was dry when I drove the thing without the random occurrence of EPC and CEL but it still didn't want to start when warm. In fact, one time after work after it has been sunny all day it didn't want to start when the engine was still cold as well.
The things I have replaced or tried so far that have not repaired it are:
*New Camshaft Sensor
*New Crankshaft Position Sensor
*New Purge Valve
*New Coil Pack
*Took off and cleaned my Throttle Body
*Checked with and OHM meter as many grounds as i could find between battery and they all checked good(the main engine ground looks good)
*Cleaned MAF sensor
*New Coolant Temperature Sensor
*Checked that all fuses were good and seated
*Verified that the k-line is good.
*Able to scan the ABS module and radio through vag com so i know its something with the ECU communication
That's all that I can remember as of now. the car went through many stages but here is how it looks as of now.
[URL]
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Car doesn't seem to want to start when warm.
1.8T AWD, 02J swap, no clutch switch (I can start without pressing the clutch).
Cold start, cranks and starts on a dime, after the car warms up and I've turned off the car, say went for a quick grocery run, the car won't start afterwards.
No cranking, nothing. Fuel pump primes, then not a sound. Everything on the dash lights up just fine. No starter motor noise, no clicking.... nada...
Fairly new starter motor pulled from a junkyard donor. Can't think of anything else.
Last time I got stranded in a parking lot, I gave it a few whacks with a tire iron and the car started just fine. Could it be a bad solenoid?
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I'm having an issue with my fans on my radiator. They don't turn on when the engine gets warm and the A/C is off. I've replaced the crack pipe, water pump, and belt tensioner. I've replaced the fans not to long ago because the low speed wasn't working. I tested low speed at the fan connector and it wasn't working. After replacing fans I tested and it was working when jumping the pins on the thermo switch connector. I got both low and high speeds to work during that test. I've since replaced the thermo switch to see if it would fix the issue but the fans still won't come on without turning the A/C on. Any other tests I could do or should I just try to get another thermo switch.
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I have Golf MK4 1.6 16V BCB '02 and problem while engine is running on idle. Engine works at 1100 rpm (doesn't matter is it cold or warm engine) all the time.
Dashboard turns CHECK ENGINE and EPC lamps and says : "engine workshop". At the beggining of problem VAG-COM diagnostic found this error:
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
But after I've changed my old throttle body with new one VAG-COM diagnostic haven't reported any error (no permanent error) and idle issue stays.
While engine is running and Check engine and EPC lapms are turned on diagnostic reports this error:
17961 Barometric/Manifold pressure signals: Implausible Correlation
P1553-35-10 ----Intermittent
After engine is turned off diagnostic doesn't report any error!
Beside of changing throttle body, I've changed ECM, MAP sensor, temperature sensor, EGR valve, . Also checked intake manifold and hoses if is it leaky (doesn't leak anywhere), and timing belt is ok and checked complete wiring installation!!!
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Mk4 Golf City*, 2008, gas, manual, sunroof. Canadian budget-model.
Mysterious noise like WOMMMMM, WOMMMM itinerantly: Noise is only when air conditioning is on and the engine is warm. I can feel vibrations in the brake pedal. *You can't hear the noise under the hood*. It is quite loud in the cab, though, definitely coming from under the dashboard.
I have stuck my nose in. I removed the glove box and listened to the blower motor, it seemed to be coming from further toward the driver's side. It will be like wmmmmOMMMMM WOMMMMM pause WOMMMM like something is vibrating too close to something else and the friction causes it to go back to where it was.
I hit a speed bump going a bit fast. I broke the small cooling fan somehow so it was just loose hanging on its hub. I had that repaired but the noise hasn't gone away. It seems to be getting more frequent but so far there isn't any indication of the car suffering. This is the second summer it has made the noise.It haunts my sleep.
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I have a 1996 VW Jetta GL 4 cyl. 2.0L. When the temp. start to warm up the car won't start. I don't know if its the temp. outside, or in the cabin of the car. all the dash lights turn on, and accessories turn on. sometimes I hear a clicking noise, which I think is the sound of electricity going to the starter. I have replaced the starter, alternator, & battery. I had a family friend mechanic look at it for about 3 hrs. and he couldn't figure it out. I have a suspicion that it might be the ignition switch faulting out, but how would I know for sure with out taring apart the steering column?
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When my car is at idle or cruising the AC works well. When I'm driving normally from stop light to stop light the AC gets warm.
I did have the pressures checked and they topped off the refrigerant. They also said the compressor is working well. I had all this checked before it started getting warm during accelerating.
Are there some things that I can look at?
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So I bought a project golf vr6, but the head and some of the components were off, I have all the parts but I just cannot figure out why it is not wanting to start, it cranks over but does not start...
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In the past week I have three instances where my Jetta will not start. I end up taking the Touareg. When I get home, I try the Jetta again and it starts right up. The engine is turning over but nothing happens. When I turn on the acc, I can hear the fuel pump.
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My 2000 VR6 Jetta has an annoying problem of hard starting in warm weather. Last summer through fall when the weather was warmer, it would often crank but not catch. All winter it is fine. A jump will usually gets it after a while. Replaced the battery with limited success. I park in the shade whenever possible. It has the manf. alarm system, and, also, but not always, it is accompanied by key not turning off the alarm. Do not have remote. Replaced the Fuel Pump Relay. No success. Cannot predict, so I don't want to have it sitting at the dealer for days on end.
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I swapped transmissions in an 01 vr6 glx automatic car. The car will start and run perfectly until it reaches operating temperature. Once it hits 190 f it shuts down and will only start again if u wait a few minutes. It has me stumped. I have unpluged the coolant temp sensor, and Have checked for vacuum leaks and loose connections but no luck.
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Today I went to start my jetta, and there was a soft slapping/ticking coming from the engine. Drove a couple miles, stopped, and when I tried to start the car again it wouldn't go. Engine light was on but it was on before. Scanned and got codes for glow plugs #2-3.
When I turn the key the starter turns but the engine will not fire or tun over. There's diesel in the fuel lines and the timing belt is still turning, thats all i could really check with out taking anything apart. What this might be?
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I have a 120k miles manual 2000 jetta vr6 12v. I was having check engine issues so i put in a reader and showed me problems at catalytic converter. I don't remember the code, and no longer have a reader...
I was told to replace the oxygen sensors in both banks as well which i did.
I opened up catalytic converter to inspect and now the car will get no spark, the engine turns, and the display shows engine stop.
I was also told to put the oxygen sensor further away with an extension cord but not sure if that plays a part.
Does the catalytic converter is causing it to not spark?
Could there be an issue with maybe a sensor at the crankshaft that checks for motion?
What the starting sequence and dependencies are or what failures I could have that prevent the spark?
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I have a '99' 2.0 Golf. The engine turns over but it wont start. I bought new fuel pump and crank sensor. that still didn't fix the issues. I also am not getting any fault codes so I am really at a lost, when car died on me the engine stalled as if i missed the clutch, ever since i haven't been able to get it on, i also bought a new battery.
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Car is a 1999.5 Mk4 Jetta GLS 2.0
I went to Discount Tire today to have my tires changed. Afterwards, my car wouldn't start or even turn over. My power windows wouldn't go up or down, the dome light wouldn't come on, the power door locks wouldn't work, and the trunk latch wouldn't work.
My gas door will open using the switch.
What happened was - I walked with the service tech out to my car, handed him my key, and he got in my car. Somehow he activated the alarm and deactivated it right away. He started the car and drove to the service bay. They did the tire change. Went I went to my car, I noticed the trunk was open and the trunk light was on as well as the radio (at low volume). I turned the radio off, tried to start the car, and all the dash lights came on but the car didn't turn over. Thats when I noticed that most of the aforementioned power features wouldn't work. They tried to give me a jump start, but it wouldn't turn over. They needed the service bay so they pushed the car out (with me in it) backwards and I was told to pop it into reverse to roll start it. That worked. I still could not operate any of the power features previously mentioned. When I got home I shut the car off and tried starting it again - no go.
So now I have a dead car with power features that wont work. I have a scanner tool and I'm going to scan for fault codes, but would like some input. The scanner is not a Rosstech.
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I've got a 2004 wagon and occasionally, when it's warmed up, if I shut it off it's hard to start again. When I turn the key it fires up, but when I release the starter it dies, like I've shut the car off. Giving it throttle makes no difference. I have to do this several times, and then it keeps running. Never does it cold. No codes.
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Low ac line is cold
Fans kick on
Compressor clutch kicks on and spins with pulley till I turn ac button off
Added r134
Changed pressure switch
Changed ambient temp sensor
Car is just manual ac control and car blows at 80 degrees.what else could it be?cars 02 gti 1.8t
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Heat blows warm at best and A/C isn't all that cold. I want to believe its a blend door issue and dive into it this weekend and fix it but there isn't a single piece of foam coming out of any of the vents. Of all the systems on the car, HVAC isn't my cup of tea I don't know anything about it. What else could be the problem? I can live without A/C but the heat things must be fixed.
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