4000,S L4-1715cc 1.7L SOHC (WT) (1982)
Fuel Pressure Check Valve: Technical Service Bulletins
Eliminating Noise "From Fuel Pump"
Applies To
4000,
COUPE
Group
20
Subject:
Fuel Line Check Valve
Part Identifier N/A
Key Points
Eliminating noise "from fuel pump"
C
Number
83-01
May 16, 1983
To eliminate fuel-line noise which appears to come from the fuel pump, the fuel-line check valve has been replaced by a hollow bolt (as of Nov. 1981
production, VIN 81 DA 058 483/85DA 054 028).
Audi 4000 - 4 cyl.
Fuel-line noise, eliminating in earlier cars
In earlier cars, fuel-line noise can be reduced or eliminated by removing the fuel-line check valve and installing a hollow bolt instead.
Audi Coupe and 5 + 5
-
remove check valve and discard
-
install hollow bolt, Part No. N 021 071 2