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Buick Regal Problems

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

The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.
The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.
The water pump may develop a coolant leak resulting in an engine overheating condition.
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2 Known 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.

3 Known Buick Regal Drive Train Problems

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure contr...
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...

6 Known Buick Regal Electrical & Lights Problems

The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.
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.

18 Known Buick Regal Engine Problems

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.
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.

6 Known Buick Regal Exhaust & Emissions Problems

The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P...
The crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored ...
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

5 Known Buick Regal Heating & Air Conditioning Problems

The display on the heater and AC control panel may become dim or go completely blank. Our technicians tell us the control panel must be replaced to correct this fault.
Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

2 Known Buick Regal Maintenance Problems

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

0 Known Buick Regal Miscellaneous Problems

4 Known Buick Regal Suspension & Steering Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with your local GM dealer to find out what the latest repair i...
One or more of the rear suspension links may become bent causing a severe rubbing noise.

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Known Buick Regal Problems & Complaints

The high pressure power steering hose will commonly leak fluid; it should be replaced.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
The power window motors and switches are prone to failure.
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 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 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 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
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.
Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.
Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.
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