1990 Chevrolet Lumina Problem Reports

RepairPal Verified 1990 Chevrolet Lumina Problem Reports

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The spark plug wire rubber boots may get soaked with oil, causing a misfire or rough idle.

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

 

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 here»

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 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.

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 oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

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.

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

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.

Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.