V8 engine trouble - 15.08.2002 03:44
Hello all Audi fans. I've been visiting this site for over a year but due to my limited technical knowledge this is the first time I am posting a message.
For more than 2 years I have been driving a 1990 V8 without any major problem. The car is a pleasure to drive even during the harsh winter months -I live in Calgary, Canada.
About two weeks ago I noticed that the car was not responding anymore to hard or full throttle acceleration. The power delivery is smooth untill 2800-3000 RPM, when the car starts shaking and blowing back in the exhaust system.
The problem has not been resolved by changing the oxygen sensor, spark plugs and air filter. Timing belt was changed 2-3 months ago. The only other problem I can relate this to is the fact that the car starts fine when engine is cold but requires a long key when engine is warm and left more than 20-30 minutes, which makes me suspect some problems with the fuel pump. I have disconnected the oxigen sensor based on some information from the web and the car didn't change its behaviour. The mileage on the car is 170.000 kms. I will take the car to my mechanic first and then to the Audi dealer if he can't fix it. Meanwhile, any suggestion will be appreciated.
Thank you,
Florin
For more than 2 years I have been driving a 1990 V8 without any major problem. The car is a pleasure to drive even during the harsh winter months -I live in Calgary, Canada.
About two weeks ago I noticed that the car was not responding anymore to hard or full throttle acceleration. The power delivery is smooth untill 2800-3000 RPM, when the car starts shaking and blowing back in the exhaust system.
The problem has not been resolved by changing the oxygen sensor, spark plugs and air filter. Timing belt was changed 2-3 months ago. The only other problem I can relate this to is the fact that the car starts fine when engine is cold but requires a long key when engine is warm and left more than 20-30 minutes, which makes me suspect some problems with the fuel pump. I have disconnected the oxigen sensor based on some information from the web and the car didn't change its behaviour. The mileage on the car is 170.000 kms. I will take the car to my mechanic first and then to the Audi dealer if he can't fix it. Meanwhile, any suggestion will be appreciated.
Thank you,
Florin