1997 Audi A4 "rough idle" Questions

...back of head and firewall. 1.8T Quattro. Just replaced breather hose under intake and Timing Belt @ 101,000 miles. Rough Idle. Sounds like a vacume line has come off. This can cause a rough

...Rough idle In Nov 08 I purchased a 55 Audi A4 2.0 TDI with 40k mileage.Soon after I noticed the car at tickover (950 rpm) to suffer from a rough idle and also engine stumbles to approx 900rpm (before ...

rough idle when the car is running, whether driving or sitting in the garage, there is a high pitched whistling noise coming from somewhere in the engine which is causing the car to idle very roughly.

...rough idle The yellow engine warning light on my 2002 Audi A4 saloon stays on, the engine idles rough but doesn't cut out. It has high emissions. If I disconnect the -ve terminal and reconnect it the ...

...rough idle. Second, what color is the smoke? If it is black then it is excess fuel building up causing the rough idle. If it is blue then it's burning oil and buildingup at idle. If it is white then ...

...Idle and rough at certain revs Hi there, I own a 97 1.8 non turbd a3, the car idles roughly, and revs slightly fluctuate more when cold, I also feel vibrations through the accelerator at certain revs ...

...idle rough. almost dies then the car revs above normal to compensate. check engion light is on. and for some reason the traction control light comes on when car is running rough. you need to have an ...

...mcdevito75 here, A vibration while idleing is not really normal, a rough idle could be many things, wrong octane gas, dirty gas filter, dirty smog controls. Have your local shop take a look for

audi 1999 a4 runs rough idles up and down audi 1999 a4 runs rough the car idles up and down the car has been setting for 6 months with close to about a quarter tank of gas i put about 1 gallon of new ...

...Now there is a vibration when idling and also between 40-70 mph that feels like engine is running rough, but tachometer holds steady. Vibration occurs going up hilss, going down hills, but