Fuel - Loss of Power or Hesitation When Turning

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NUMBER: 92-T-114

CORP.REF.NO: 206502

DATE: July 1992

SECTION: 6C


SUBJECT:
LOSS OF POWER, HESITATION ON TURNS
- REPLACE FUEL PUMP STRAINER


MODELS/YEARS:
1986-92 EIGHTY EIGHT
1985-92 NINETY EIGHT


CONDITION:
Some 1986-92 Eighty Eight and 1985-92 Ninety Eight models may exhibit a loss of power or hesitation while driving on sweeping right hand curves, such as an exit ramp, or on hard right turns, when fuel level is below a 1/4 full designation on the fuel gage.

CAUSE:
Vehicles that have the above symptoms may have fuel pumps and strainer assemblies slightly mispositioned on the tank sending unit, allowing the strainer to not stay fully submerged in fuel.





CORRECTION:
Replace the fuel pump strainer with Part Number 25121783 which is currently available from GMSPO. This new strainer replaces the old strainer on all Nippondenso 51 mm fuel pumps and will stay submerged in fuel to prevent starvation. The Nippondenso fuel pump can be identified by the number 16, (or 51 for supercharged engines) on the I. D. Tag which is attached to the wiring harness, (see the illustration).

WARRANTY INFORMATION: See the current Labor Time Guide.