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1987 Pontiac Grand Prix 5.0L MIL Lamp on
Posted to GM Driveability on 2/20/1999

Vehicle came in to have cylinder heads reworked, timing chain replaced and carburetor rebuilt as 'maintenance' work. Customer complained of 'SES' light coming on after work completed; no previous complaint. EGR vacuum passage found to be completely obstruc...

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car Vehicle Data

1987 Pontiac Grand Prix

VIN 2G2GP11H8H
Engine5.0 L / 8 cyl
EmissionsUS Fed emissions
SymptomsMIL Lamp On
OccursCruise, Intermittently

Trouble Codes

53egr
Message Closed

car Vehicle Data

1987 Pontiac Grand Prix

VIN 2G2GP11H8H
Engine5.0 L / 8 cyl
EmissionsUS Fed emissions
SymptomsMIL Lamp On
OccursCruise, Intermittently

Trouble Codes

53egr