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Sedans Audi A4 Audi A4 Maintenance and Repair
2132 messages, Last post on Nov 21, 2009 at 9:57 PM
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I have a 98 a4 quattro 2.8 v6 and since the last oil change, at which point i had the engine flushed to get rid of all the sludge and deposits, there is an oil drip/leak somewhere on the back side of the drivers side of the motor, it appears to be leaking from/onto the flange that connects the manifold to the exhaust downpipe/intermediate pipe. It only does it when the motor is running at or above 2k rpms or has been driving, even if it's a short distance. The timing belt and valve cover gaskets have been replaced within the last 2k miles. Any help or insight would be greatly appreciated seeing as i cannot afford to have a dealer spend hours tracing a leak.
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my 98 a4 quattro 2.8 5-speed recently developed an oil leak/burn after it's last oil change and i noticed that the oil fill cap has a warning stating that you could damage the catalytic converter by overfilling the crankcase, how is this possible? and could that be related to the oil burning off of my exhaust flange behind the driver's side of the motor?
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Replying to: quickshifter2 (Jul 15, 2009 5:08 pm) Good luck. audiphile1 |
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I have a 2003 A4 3.0 Q with 98K miles. I went and put fuel in the car today and then about an hour later I was coming back home stopped at a light, all of a sudden the car started shaking and the check engine light started flashing. Got the car back to the house, popped the hood and noticed that the engine is shaking more that usual. Drove the car around the area, acceleration is now a little sluggish. Kinda putters a bit before feeling normal again. The tach still rests at normal idle position. Do I have a serious problem or could it be just bad gas?
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Replying to: gregaudia4 (Jul 16, 2009 11:57 am)
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Replying to: rowlandj (Jul 16, 2009 1:08 pm)
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Replying to: gregaudia4 (Jul 16, 2009 1:24 pm)
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Replying to: rowlandj (Jul 16, 2009 2:47 pm) I looked in the Audi manual as well and it says that if the check engine light comes on and starts blinking the way it is now that it's a faulty cat converter. Also the person that checked the computer said that cylinders 2 and 5 are misfiring.
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Replying to: gregaudia4 (Jul 16, 2009 3:05 pm) Engine mis-fires and bad spark plugs/coil packs will basically send raw gasoline into the exhaust and ultimately damage the converter. I believe that if you fix the mis-fire issues that should help in that regard. A good run at full operating temperatures will also help once you fix that issue. You should not drive the vehicle until this is resolved that is why the engine light is blinking and not just remaining on. If you fix the mis-fire issues the blinking light should go off but you may still have a solid check engine light due to the evaporator issue. That fix may be made after the fact but if you want to save expensive repairs to the catalytic converter you should fix that mis-fire matter immediately. |
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