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1990 Buick Regal Problems

Find the most common issues based on 1990 Buick Regal owner complaints.
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Most Common 1990 Buick Regal Problems

The water pump may develop a coolant leak resulting in an engine overheating condition.
One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
The fuel pump may fail causing engine to stall and not restart.
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2 Known 1990 Buick Regal Brakes Problems

The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)
The ABS master cylinder assembly may fail internally causing the ABS light to illuminate.

2 Known 1990 Buick Regal 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...

3 Known 1990 Buick Regal Electrical & Lights Problems

One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
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 engine temperature sensor wire for the engine temperature gauge, or warning light, may touch the rear exhaust manifold causing a short to ground causing erratic operation of the temperature gau...

12 Known 1990 Buick Regal Engine Problems

The water pump may develop a coolant leak resulting in an engine overheating condition.
The fuel pump may fail causing engine to stall and not restart.
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.

1 Known 1990 Buick Regal Exhaust & Emissions Problem

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

2 Known 1990 Buick Regal 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 1990 Buick Regal Maintenance Problem

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

0 Known 1990 Buick Regal Miscellaneous Problems

2 Known 1990 Buick Regal 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 1990 Buick Regal Problems & Complaints

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 ignition module or crankshaft position sensor may fail causing the engine to die and not restart. Diagnoses will be necessary to determine if the module or crank sensor is causing the no star...
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 spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.
A stalling issue may occur if the battery goes dead or is disconnected and the "idle learn" procedure is not performed. For more information on "relearning" the engine idle speed, please click ...
Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.
Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.
The engine temperature sensor wire for the engine temperature gauge, or warning light, may touch the rear exhaust manifold causing a short to ground causing erratic operation of the temperature gau...
One or more of the rear suspension links may become bent causing a severe rubbing noise.
The ABS master cylinder assembly may fail internally causing the ABS light to illuminate.
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