Pontiac Sunbird Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Pontiac Sunbird
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Pontiac Sunbird ProblemsEngine Vacuum Leak Due to Cracked PCV Vacuum Hose
The PCV vacuum hose under the upper intake plenum may become brittle and crack causing an engine vacuum leak.
The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.
The ignition module or crankshaft position sensor may fail causing the engine to die and not restart. Diagnoses will be necessary to determine if the module or crank sensor is causing the no start condition.
Pontiac Sunbird Questions1990 Sunbird Le engine stalls when under losd unless I pump the gas. (2 answers)
I'm trying to find out what might cause the fuel injector in the throttle body to not give enough fuel occasionally when the engine is under load. Feathering the gas will keep it going sometime so I think it's fuel-related. Is there a fuel filter in the throttle body under the fuel inject...
found it on the fire wall but can't find out what it controlls