AUDI A4 B5 problems

[adrianx]

Hello, I have an Audi A4, 1.9TDI from 1996, and when the engine is warmed up then my car has some strange trepidations at 780-840 rpm, if I accelerate then I dont feel any repidations. What may be the problem? Thank you.

[carsolution]

Hi.
Did you already put the diagnose machine to see if you have errors?
Try it first.
By the sympthoms I think it can be injectors working bad but can be a lot of other things.
The working noise is pacific or metal noise?
Connect it into the diag machine and tell me the error codes, its better to help you.

[adrianx]

Hi, I didnt found any problems, I scanned with vagcom and it didnt found any error codes. Is a pacific sound, I think maybe is from the clutch flywheel ?

[raints]

Hello, I have an Audi A4, 1.9TDI from 1996, and when the engine is warmed up then my car has some strange trepidations at 780-840 rpm, if I accelerate then I dont feel any repidations. What may be the problem? Thank you.

Check alternator ribbet belt pully.Its like one way clutch.
If its stuck then your ribbet belt make noise on idle speed .