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1994 Chevrolet Lumina Problems

RepairPal has identified the most common problems with the 1994 Chevrolet Lumina 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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21
Known Problems

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

 

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.

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

It is common for the original coolant-level modules installed on the radiator to go bad; they will need to be replaced. If this occurs, the low coolant level light will illuminate.

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.

One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.

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 completely flushed.

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.

The high pressure power steering hose will commonly leak fluid; it should be replaced.

It is common for the driver side window motor and master window switch to fail.

The spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.

Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.

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.

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.