Engine Performance - Loss of Power Under Load/Misfire
Group: 25Number: 92-04
Date: 04/27/92
Subject:
Loss of Power and/or Engine Misfire
Model(s):
80/90 M.Y. 1988-1992
Condition: Loss of power under load and/or engine misfire.
Cause:
Low fuel flow due to restricted filter screen at inlet banjo bolt on the fuel distributor.
Note:
From M.Y. 1988 the inlet banjo bolt has a mini filter screen which must be replaced during the 7500 mi maintenance service.
Service:
- Inspect the inlet banjo bolt for identifying marks:
Illustration A:
If the hex portion has a raised shoulder (arrow) it contains a mini filter and must be replaced.
Illustration B:
The correct banjo bolt has no raised shoulder (arrow).
- If necessary replace the banjo bolt using Part No. N 021 071 5
Note:
Whenever these vehicles are in for any type of service inspect the inlet banjo bolt and replace it if it looks like shown in illustration A.