1991 Pontiac Sunbird Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Pontiac Sunbird
1991 Pontiac Sunbird Problems
The torque converter clutch can stick "on" after extended freeway driving causing the engine to stall when coming to a stop. Our technicians tell us when this occurs, the engine usually will restart and stall when put into gear. After allowing about twenty minutes for the engine and transmission to cool down, the engine will start and the transmission will operate normally. Replacing the torque converter clutch solenoid, transmission filter, and fluid will generally correct this issue.
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.
A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.
1991 Pontiac Sunbird Questions
found it on the fire wall but can't find out what it controlls
I've replaced the fuel pump (twice)7 fuel filters, 2 strainers, idle air controller, maf sensor, spark plugs and wires, throttle position sensor, fuel pressure relay, fuel pressure regulator, some vacuum lines. Car ran then loss power, limped to the side of the road and died, hasn't ran f...
I changed the timing belt in a 1991 Pontiac sunbird se 2.0 L 4 cyl. got the marks right,it won't start,caan you help me please. Thank you