Firebird V8-305 5.0L VIN E TBI (1989)
Fuel Supply Line: All Technical Service Bulletins
Fuel - Light Hammering or Rattle Noise
Bulletin Number: 92-6-69
Reference Number: 336303
Publish Date: 6/93
Subject:
LIGHT HAMMER/RATTLE NOISE (REPLACE FUEL FEED HOSE ASSEMBLY)
Models Affected:
1989-92 FIREBIRD MODELS WITH 5.OL
OR 5.7L V-8 ENGINE (RPO'S LB9, L98)
CONDITION:
Some 1989-92 Firebird models with 5.0L V-8 engines (RPO LB9) or 5.7L V-8 engines (RPO L98) may exhibit a light hammering/rattle type noise
audible in the vehicle passenger compartment.
CAUSE:
Pressure pulsations in the fuel system, generated by fuel injector operation, causing hydraulic hammering in chassis fuel pipes.
CORRECTION: