buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Engine Controls - Aftermarket Accessory Usage|Page 86 > < Electronic Spark Timing <--> [Electronic Spark Control Module]|Testing and Inspection
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Fluid Pump: All Technical Service Bulletins
A/T - Pump Body/Fluid Leaks At Front Seal

SIL 89-3 (Feb)

THM 200-4R

SUBJECT: Pump Body

PROBLEM:

Fluid leaks from the oil pump body seal (front seal) may be created by movement of the pump body bushing.

If this condition is experienced1 a new oil pump body should be installed.

New pump bodies are now being produced with a machined step in the bushing bore.

The addition of this step is to prevent pump body bushing movement toward the seal.

Engine Controls - Aftermarket Accessory Usage|Page 86 > < Electronic Spark Timing <--> [Electronic Spark Control Module]|Testing and Inspection