1990 Buick Regal Problems
RepairPal has identified the most common problems with the 1990 Buick Regal as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.Refine by vehicle
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 high pressure power steering hose will commonly leak fluid; it should be replaced.
One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
The spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.
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.
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 replaced to correct this concern.