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mike_a_mechanic
mike_a_mechanic, Mechanic
Category: Audi
Satisfied Customers: 5470
Experience:  17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.
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Audi A4 1.8 turbo auto 53 reg has engine shudder/misfire problem

Customer Question

Audi A4 1.8 turbo auto 53 reg has engine shudder/misfire problem between 1000 and 1500rpm.
Engine appears normal below and above this speed. tick over smooth
Submitted: 4 years ago.
Category: Audi
Expert:  mike_a_mechanic replied 4 years ago.
Hi,my name is mike and I will do my best to assist you with your question.
Does any warning lights come on at all ?
Has the vehicle been scanned for trouble codes?
Customer: replied 4 years ago.

sorry the Chinese owner did dot tell me that when the problem occurs the 'Fault in engine management system' light flashes or sometimes stays on constantly


 


The problem occurs at 1500 to 2200 rpm when under load conditions only

Expert:  mike_a_mechanic replied 4 years ago.
Honestly what this issue sounds like and is consistent with is a exhaust flow problem,meaning the exhaust is partially restricted somewhere. The best way to find this out is to have the exhaust system checked out using a heat sensing tool.