Golf IV / Jetta IV :: Random Hard Start After Car Is Warm / No CEL
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?
Touareg :: 2005 V6 - Hard Cold Restart When Shut Off Before Fully Warm Up
I have a 2005 with V6 and 55,000 miles. For over the last year I have had a problem where if you start the car and then shut it off before it fully warms up it will be very hard to restart and barely run till you get it out and run it on the highway for awhile. First noticed this when starting car to back out of driveway to get into attic. Went to restart to put back in garage and car would hardly start. Had to dealer a couple of times and they said you should warm car up before using. That sounds good but is not practical and car never had this problem when new.
View 4 RepliesFord 6.0L Power Stroke Diesel :: 2007 F250 - Engine Gets Warm / Hard To Restart
I have s 2007 f250 superduty with a 6.0. Recently after the engine gets warm I have a problem restarting it. I have to turn the key to the run position until all sounds have stopped then I have to pump the accelerator to get it to start. Sometimes I have to repeat this three or four times before it starts. I have had the fuel pump rebuild and installed two new batteries. What I should be looking at.
View 14 RepliesPontiac - Grandam :: 2004 Will Not Restart On Warm Or Hot Humid Days
2004 pontiac grand am, after driving and shutting off the car, it will not restart or stalls out while waiting at traffic lights. When I try to restart the car, all I get is clicking sounds, only does this on warm or hot humid days. The dealer told me to just hold down the gas pedal and crank the engine till it restarts. I have tried the turning on the key for a minute, wait, then turn the key back off, and then to restart, but that doesn't work either. If I wait for a good ten minutes, the car usually starts. When I turn on the key I do hear the fuel pump kick in. I have replaced the fuel regulator, ignition switch, keys, computer chip in the ignition system, battery, and starter- twice. I have heard that it could be a crankshaft sensor? No codes are showing up when this happens.
View 16 RepliesJetta - Volkswagen :: 2000 VR6 Hard To Start In Warm Weather
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.
View 2 RepliesGolf IV / Jetta IV :: 2004 - Hard To Start Then Suddenly Dies
2004 PD TDI. been a little hard to start these days, hot or cold, and suddenly dies on me in middle of the road. Tank pump is working, new fuel filter so lots of fuel. Replaced engine speed sensor as there was no tach function. Glow plug light comes on, so ECU has power. Not a hiccup. Don't have the advanced VW diagnostic software, just generic scan tool. No engine codes.
I checked the wiring diagram in my manual and it shows 3 wires to speed sensor, one of which should be ground. getting various resistances across all 3 to ground (measuring through the ecu end of the connector, sensor unplugged), but no direct to ground which seems strange, but I'm not sure I trust the Haynes manual as the colour codes listed aren't the same as in my car - I've got white brown and black, and none show direct ground. Not sure if it matters as it's only a shield anyway.
Golf IV / Jetta IV :: 1.8T 2004 Automatic - Shifter Hard To Move In Cold Weather
I've got a 1.8T 2004 automatic and the problem I'm having is the shifter is harder to move since the weather's been colder. It shifts very well and is responsive, it's just that I have to pull it harder to select P, R, N and D. D is especially hard (no pun intended you sick minds! ) to select, the shifter kind of stays in neutral but shifts after a bit. Is there anything I can do to fix this?
Side question: is the rear defrost supposed to turn off after a certain period of time? My 2002 golf does it but the jetta doesn't.
Golf IV / Jetta IV :: 2002 VR6 Just Quit When Came To A Stop Sign Now Won't Restart
I came to a stop at a stop sign and the car just quit. Its a 02 12v vr6 5 speed...
So I tried restarting it and it will only crank...
Golf IV / Jetta IV :: Engine Stopped Abruptly And Then Began Running Fine Without A Restart
I just posted how happy I have been with my 2004 GTI 1.8t, then something strange happened. I was coming up to a light at night, turned on my turn signal and hit the brakes. The engine stopped abruptly and then began running fine without a restart. It was only for a split second. The lights went out, car died and began to run again very quickly. I noticed later that the clock had changed to the wrong time. I have noticed that lately at night the headlights dim slightly when I brake. That's the only clue. New battery, Alternator checks out fine.
View 5 RepliesFord Excursion :: 2004 - Hard Start When Warm?
I got a new to me 2004 4x4 Excursion v10. 98,000 miles but why it is hard to start when the engine is warm. Starts right up when cold, engine not ambient air temp, idles great once started. In park idles at 1,000 until normal op temp is reach, then down to 750ish. In gear idles right at 650. Drives great. Plenty of power, does not surge, averaging 13.7 mpg over two tanks (70% hwy, 30% city) and no codes. Since it is new to me, and I don't trust people to do maintenance I have:
Replaced spark plugs
Replace downstream o2 sensor (the two upstream were not in stock)
Replaced fuel filter
Replaced belt
Replaced crank sensor (because the belt was already off)
Changed oil (mobile 1 5w20) and filter.
Accent MC (2006-11) :: 2009 - No Restart While Warm
OK all sensors and evac valve done. No codes being pulled. No check engine light. Car starts no problem in the morning or when its been sitting but when the car has been driven to temp. I will not restart and just keeps cranking, if it starts to start it shudders and dies. I am the original owner and its had any maintenance its needed.
View 4 RepliesAccent LC (2000-05) :: Shut Off When Warm Up And Will Not Restart?
Car starts and run find when cold. Shut off when warm up , will not restart? Could this be a crank sensor problem?
2004 accent GS with 150,000
Golf IV / Jetta IV :: AC Gets Warm When Accelerating
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?
Celica :: 1990 2.2L - Car Occasionally Stalls After It Is Warm And Won't Restart
1990 Celica 2.2 liter, 5SFE manual trans car with 239k miles.The car occasionally stalls after it is warm and won't restart. When is is cold she fires right up as it does most of the time when she is warm. To restart he sprays starter fluid in the intake or waits until it cools down. Also as the car gets warm the idle decreases to around 650. Adjusted idle speed to 750 but no effect. The only code is 1-2, low or no RPM, measured the RPM sensor air gap and within spec, measured the sensor resistance and within spec. sensor wiring and connector looked good, measured the temp sensor and within spec, disconnected the EGR vacuum line and no effect. Problem occurs once or twice a week but at the most embarrassing place.
View 4 RepliesGolf IV / Jetta IV :: VR6 Won't Start When Engine Is Warm
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?
Golf IV / Jetta IV :: 2001 - Won't Idle After Warm Up?
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.
View 1 RepliesCorolla / Matrix 2009-13 :: Engine Rattle Always Happens On A Warm Restart
I finally caught my engine rattle on audio. Give a listen and tell me what you think this is: [URL] .....
There's a TSB about a rattle on a cold start, but mine never rattles when it's cold. This always happens on a warm restart -- usually about 45 to 75 minutes after I've parked it.
It's been doing this for at least a year, but I've had trouble catching it in the act and, of course, the dealer can't reproduce it. I currently have 37k miles on it. Oil changes completed at 1k, 5k and every 5k after. Using Mobil 1 5W-20 since the second change.
Golf IV / Jetta IV :: 2002 - Low AC Line Cold But Warm Air
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
Golf IV / Jetta IV :: Heat Blows Warm At Best - A/C Isn't All That Cold
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.
View 4 Replies