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1994 Pontiac Grand Prix Problems

Find the most common issues based on 1994 Pontiac Grand Prix owner complaints.
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Most Common 1994 Pontiac Grand Prix Problems

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell ...
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The fuel pump may fail causing engine to stall and not restart.
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0 Known 1994 Pontiac Grand Prix Brakes Problems

2 Known 1994 Pontiac Grand Prix Drive Train Problems

You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be com...
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 r...

1 Known 1994 Pontiac Grand Prix Electrical & Lights Problem

One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.

9 Known 1994 Pontiac Grand Prix Engine Problems

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell ...
The fuel pump may fail causing engine to stall and not restart.
The water pump may develop a coolant leak resulting in an engine overheating condition.

2 Known 1994 Pontiac Grand Prix Exhaust & Emissions Problems

The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please cont...
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

2 Known 1994 Pontiac Grand Prix Heating & Air Conditioning Problems

Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.

1 Known 1994 Pontiac Grand Prix Maintenance Problem

Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.

0 Known 1994 Pontiac Grand Prix Miscellaneous Problems

2 Known 1994 Pontiac Grand Prix Suspension & Steering Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.
One or more of the rear suspension links may become bent causing a severe rubbing noise.

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Known 1994 Pontiac Grand Prix Problems & Complaints

One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell ...
The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please cont...
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.
The fuel pump may fail causing engine to stall and not restart.
The water pump may develop a coolant leak resulting in an engine overheating condition.
An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.
Corrosion may develop at the connection between the ignition coil tower and spark plug wire resulting in an engine misfire. The Ignition coil and spark plug wire should both be replaced to correct ...
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 r...
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be com...
The upper intake manifold gasket and/or a PCV vacuum lines/hoses can develop vacuum leaks with age. This type of leak can result in a higher that normal or rough idle.
The spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.
An engine oil leak may develop from the oil pump drive O-ring. This can often be confused with an intake manifold gasket leak. Careful inspection is required to determine the exact cause of the le...
Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.
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