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Problems for specific Chevrolet Impala years:

Car problem reports

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Newest reported 2004 Chevrolet Impala problems

 

Verified for the Chevrolet Impala

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

43 Reports
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Verified for the Chevrolet Impala

The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P0174 stored.

20 Reports
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Verified for the Chevrolet Impala

The engine may start and stall with the security light flashing. This is commonly caused by a failed passlock sensor which is part of the ignition lock cylinder. A secondary cause could be the ignition switch itself. Worn contacts inside the ignition switch can cause voltage drop issues which can affect the passlock system. Proper diagnoses should be performed before replacing any parts.

39 Reports
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Verified for the Chevrolet Impala

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

9 Reports
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Verified for the Chevrolet Impala

The intake manifold gasket can develop external engine oil or coolant leaks. In some cases the failed gasket will leak coolant internally. The manifold gasket will need to be replaced to correct this issue.

52 Reports
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Verified for the Chevrolet Impala

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. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

6 Reports
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Verified for the Chevrolet Impala

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.

3 Reports
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Verified for the Chevrolet Impala

An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.

3 Reports
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Verified for the Chevrolet Impala

The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.

 

21 Reports
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Verified for the Chevrolet Impala

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

195 Reports
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Verified for the Chevrolet Impala

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

14 Reports
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Verified for the Chevrolet Impala

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault.

102 Reports
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Verified for the Chevrolet Impala

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

27 Reports
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Verified for the Chevrolet Impala

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

1 Report
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Verified for the Chevrolet Impala

The steering may develop a clunk type noise from the upper intermediate steering shaft.  Our technicians tell us that you should check with your local GM dealer to find out what the latest repair is for this condition.

97 Reports
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