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.
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.
Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.
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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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.