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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

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.
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.
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 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...
The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.
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 2011-2013 Buick Regal is known to have issues with the EVAP system, a part of your emission control system. The EVAP canister vent valve or valve solenoid wiring may fail causing illumination ...
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 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 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...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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...
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