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Buick Regal Problems

RepairPal has identified the most common problems with the Buick Regal based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

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.

 

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 contact your local GM dealer to see if your vehicle is included.

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.

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 here»

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.

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 gauge or warning light.