Eliminating Noise "From Fuel Pump"
83audi01Applies 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To eliminate fuel-line noise which appears to come from the fuel pump, the fuel-line check valve has been replaced by a hollow bolt (as of Nov. 1981 production, VIN 81 DA 058 483/85DA 054 028).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
CAUTION
Part numbers are for reference only. Always check with your Parts Department for latest parts information.