P2B87

auxiliary coolant pump underspeed

NHTSA 10185752 ↗

auxiliary coolant pump underspeed

NHTSA 10185752 ↗

auxiliary coolant pump underspeed

NHTSA 10185752 ↗

CADILLAC, CHEVROLET, GMC

This preliminary information communicates an issue with an SES MIL DTC P2B87 and/or P2B86 cause by the Aux heater coolant pump have an unwanted oring stuck in the pump. Dealers are to remove oring and reinstall pump.

BUICK, CADILLAC, CHEVROLET, GMC

This technical bulletin provides repair information to correct a customer concern of Service Engine Soon MIL Illuminated with DTC P2B87 Set.

CHEVROLET, GMC

This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering has releasing updated cals to correct the concern.

CADILLAC, CHEVROLET, GMC

This Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering has releasing updated cals to correct the concern.