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Problems for specific Buick Regal years:

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Newest reported Buick Regal problems

 

Reported by Bubba77 for the Buick Regal

Wiring harness at right trunk hinge bends when trunk opened.
Wiring gets stressed and eventually breaks.
The orange wire in the bundle is the trunk light wire.

Failing that change bulb:
P/N is BP917

1 Report
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Reported by Ongiara and 1 other for the Buick Regal

Engine stalls when the turn signals are used. This happened at highway speeds and can be very dangerous. Also, the dash lights flashed on and off. Engine will restart but will stall again when you use the turn signals.

2 Reports
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Verified for the Buick Regal

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.

11 Reports
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Verified for the Buick Regal

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 start condition.

5 Reports
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Verified for the Buick Regal

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.

23 Reports
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Verified for the Buick Regal

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 P0174 stored.

12 Reports
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Verified for the Buick Regal

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

1 Report
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Verified for the Buick Regal

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

2 Reports
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Verified for the Buick Regal

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 us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

5 Reports
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Verified for the Buick Regal

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 in the PCM. Patience is necessary when dealing with this specific situation as normal diagnostic procedures are not effective. In many cases, the best option is to replace parts, one at a time until the fault is corrected.

12 Reports
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Verified for the Buick Regal

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 this condition.

5 Reports
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Verified for the Buick Regal

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.

4 Reports
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Verified for the Buick Regal

The water pump may develop a coolant leak resulting in an engine overheating condition.

 

37 Reports
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Verified for the Buick Regal

The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.

 

16 Reports
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Verified for the Buick Regal

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.

11 Reports
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