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A4 2.8 diagnosis help needed

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Old 09-07-2012, 12:25 PM
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Default A4 2.8 diagnosis help needed

Car is very hard to start and when it does start, chugs badly and blows white smoke like an insect fogging machine. If I slowly bring the revs up it will clear itself out and have normal exhaust and no missing. This is usually above 2500 rpm. As soon as I let the rpm's drop it starts all over again and will not hold an idle. There does not seem to be any unusual mechanical noises when this is happening. Could all this be caused by the purge valve?
Old 09-07-2012, 01:25 PM
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Did you have the car scanned?

Your likely culprit is the coolant temperature sensor. A $20 part from the dealer.
Old 09-08-2012, 07:32 AM
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First find out what's blowing out the exhaust; fuel, oil, or coolant. You should be able to ID which it is by smell, but also pull the spark plugs (all six) and see if they all look the same. Do that and report what you find.
Old 09-11-2012, 08:35 AM
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Alldatadiy.com has diagnostic code as well as how to fix them. Good luck with your search.
Old 09-11-2012, 09:24 AM
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Isn't ALLDATAdiy.com selling something? I know that you paste this same paragraph in every topic, but shouldn't this be in a classified section?
Old 09-11-2012, 11:58 AM
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Vendors can post this stuff here. Usually they use some restraint and attempt to either contribute to the forum or at least post relevant content. Shameless shilling is obnoxious. Needless to say, I will avoid using Alldata and would urge you all to do the same.
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