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1990 Chevrolet Lumina Problems

RepairPal has identified the most common problems with the 1990 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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24
Known Problems

The fuel pump may fail causing engine to stall and not restart.

This engine may leak oil from the valve cover gasket.

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 battery goes dead or is disconnected.

The crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored in the PCM. Patience is necessary when dealing with this specific situation as normal diagnostic procedures are not effective. In many cases, the best option is to replace parts, one at a time until the fault is corrected.

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 replaced to correct this concern.

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

 

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 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.

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.