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1991 Oldsmobile Cutlass Supreme Problems

Find the most common issues based on 1991 Oldsmobile Cutlass Supreme owner complaints.
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Most Common 1991 Oldsmobile Cutlass Supreme Problems

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.
The fuel pump may fail causing engine to stall and not restart.
The high pressure power steering hose will commonly leak fluid; it should be replaced.
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0 Known 1991 Oldsmobile Cutlass Supreme Brakes Problems

2 Known 1991 Oldsmobile Cutlass Supreme Drive Train Problems

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...

1 Known 1991 Oldsmobile Cutlass Supreme Electrical & Lights Problem

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 gau...

14 Known 1991 Oldsmobile Cutlass Supreme Engine Problems

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.
The fuel pump may fail causing engine to stall and not restart.
An engine oil leak may develop from the oil pump drive O-ring. This can often be confused with an intake manifold gasket leak. Careful inspection is required to determine the exact cause of the le...

2 Known 1991 Oldsmobile Cutlass Supreme Exhaust & Emissions Problems

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.
The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

2 Known 1991 Oldsmobile Cutlass Supreme Heating & Air Conditioning Problems

Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.

1 Known 1991 Oldsmobile Cutlass Supreme Maintenance Problem

Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.

0 Known 1991 Oldsmobile Cutlass Supreme Miscellaneous Problems

2 Known 1991 Oldsmobile Cutlass Supreme Suspension & Steering Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.
One or more of the rear suspension links may become bent causing a severe rubbing noise.

24
Known 1991 Oldsmobile Cutlass Supreme Problems & Complaints

The fuel pump may fail causing engine to stall and not restart.
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.
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.
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 oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).
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...
The high pressure power steering hose will commonly leak fluid; it should be replaced.
Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
The 2.3L 4 cylinder engine can be prone to head gasket failure. This can result in coolant loss and engine overheating.
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 ...
An engine oil leak may develop from the oil pump drive O-ring. This can often be confused with an intake manifold gasket leak. Careful inspection is required to determine the exact cause of the le...
The ignition coil housing may fail causing an engine misfire on one or more cylinders.
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 star...
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