1992 Pontiac Grand Prix Problems

RepairPal has identified the most common problems with the 1992 Pontiac Grand Prix as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.

The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.

Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.
The timing belt may fail prematurely. Our technicians tell us that the belt tensioner and idler pulleys should be replaced when the timing belt is replaced.
Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
One or more of the rear suspension links may become bent causing a severe rubbing noise.