2004 Chevrolet Impala SS Problems
RepairPal has identified the most common problems with the 2004 Chevrolet Impala SS based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.
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.
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.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.
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.
The EGR tube may develop an engine vacuum leak causing the Check Engine (SES) light to illuminate.
Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.
The high pressure power steering hose will commonly leak fluid; it should be replaced.