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Resources for the Repair and Maintenance of your 1991 Pontiac Bonneville

1991 Pontiac Bonneville

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1991 Pontiac Bonneville Problems

Engine -- Verified

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.

Engine -- Verified

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.

Engine -- Verified

The water pump may develop a coolant leak resulting in an engine overheating condition.
 

Suspension & Steering -- Verified

The high pressure power steering hose will commonly leak fluid; it should be replaced.

Engine -- Verified

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)

Drive Train, November 22, 1991

Summary: THE CONSOLE MOUNTED SHIFT LEVER MAY DISENGAGE FROM THE SHIFT CONTROL CABLE BRACKET CAUSING LOSS OF GEAR INDICATOR REFERENCE AND SHIFT SELECTOR OPERATION.

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1991 Pontiac Bonneville Questions and Answers

chance_dsm, 1991 Pontiac Bonneville, Cumming, IA

sometimes at stoplights it sputters when i take off?
but then the car runs fine?

chance_dsm, 1991 Pontiac Bonneville, Cumming, IA

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?

chance_dsm, 1991 Pontiac Bonneville, Cumming, IA

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...

chance_dsm, 1991 Pontiac Bonneville, Cumming, IA

my speedmetor cable is not reading is it a cable or something in the computer ?

jerryel, 1991 Pontiac Bonneville, Peoria, IL

I have pros & cons. Iwas told by one mechanic that as a whole cleaners may do more harm than good. He made one exception for any brand that contained a particular additive, which i don't...

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