Fuel Pump - Hot Start/Noise
88audi07Applies To: 5000S - 5000 TURBO 1984-1988
Subject: Fuel Pump - Hot Start/Noise
(Supercedes Product Circs. 88-01, January 22, 1988 and 88-03, June 17, 1988)
Number:
88-04 August 19, 1988
Group:
20
Fuel System
The following information supercedes all TMG Product Information dated earlier than June 1988
Cause:
Fuel percolation/vaporization in high ambient temperatures.
Production Change:
Modified fuel pump
5000S: Improved fuel pump. Increased delivery rate.
As of: January 1986 VIN: 44 G 082803
5000 Turbo: Modified fuel pump (contoured chamber)
As of: September 1986 VIN: 44 H 040273
CAUTION
Part numbers are for reference only. Always check with your Parts Department for latest information.
Service Solution:
Replace fuel pump ONLY after determining that octane/additive is within limits stated in technical specification of vehicle.
5000S: Install fuel pump - P/N: 443 906 091A and damper - P/N: 447 906 095
Install washers according to illustration:
A - 2 washers P/N: N 013 812.8
B - 1 washer P/N: N 902 832.01
5000 Turbo: P/N: 447 906 091 C