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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.

25
Known 1990 Buick Regal Problems & Complaints

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.
One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.
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 anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)
The intake manifold gasket can develop external engine oil leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue.
The water pump may develop a coolant leak resulting in an engine overheating condition.
Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.
Body: A dirty throttle body may cause a lower than normal engine idle resulting in a stalling condition. A stalling condition may also result if an idle learn procedure is not performed if the ba...
The cam sensor interrupter (magnet) may become demagnetized and/or fall off of the camshaft gear causing the Check Engine Light (Service Engine Soon) light to illuminate. On higher mileage vehicles...
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 high pressure power steering hose will commonly leak fluid; it should be replaced.
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