1990 Pontiac Bonneville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Pontiac Bonneville

1990 Pontiac Bonneville Problems

Water Pump May Fail Prematurely

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

 

Engine Stalling Due to Mass Air Flow/Crankshaft Position Sensor Failure

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.

Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

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1990 Pontiac Bonneville Reviews

I had this car for 10 years. It gets me back and forth where I need to go. Bonneville is a solid vehicle purrs at 30 mph and a comfortable car. Living in Wisconsin hasn't rust or corroded so happy with that. At 115,778 miles use Lightweight oil 1000miles change spark plugs between (60,000-75,000miles) very classy car running cond. Believe it or not its a '90 model but looks like a 2015 model ye...

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