The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue. In some cases the plastic intake manifold my be damaged requiring replacement.
Resources for the Repair and Maintenance of your 1991 Pontiac Bonneville
1991 Pontiac Bonneville
1991 Pontiac Bonneville Problems
The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.
The water pump may develop a coolant leak resulting in an engine overheating condition.
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The fuel pump can fail causing the engine to stall and not restart. Our technicians highly recommend to replace your fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
1991 Pontiac Bonneville Recalls (Recent)
1991 Pontiac Bonneville Questions and Answers
sometimes at stoplights it sputters when i take off?
but then the car runs fine?
i let my car sit in the garage for a year and a half ,
did an oil change and it runs fine, but there is a brown film,
under the radiator cap? will a flush work?
i thought my gauge was stuck all the way past full, now it goes down to full, when car is off, is it registering at all?
and how can i locate the trouble? thanks...
my speedmetor cable is not reading is it a cable or something in the computer ?