2004 Chevrolet Impala Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Chevrolet Impala
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2004 Chevrolet Impala ProblemsDexCool antifreeze forms sludge
DexCool antifreeze formed brown gel-like sludge, first observed at radiator cap. Supposed to last 100,000 miles. Lawsuit settled for cases where engine failed. Flushed system and replaced coolant. Keep air out of system by ensuring coolant reservoir always at proper level and check radiator periodically by removing cap.
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.
2004 Chevrolet Impala QuestionsTranny flush or change? (1 answer)
Bought a 04 impala from a local dealer. Had for 2 weeks and its starting to shift a tad hard. Got oil changed and said tranny needs serviced. They suggest a flush but i did my research and it suggested that it was not good to flush the tranny. Should i get just a fluid change, filter and drop pan...
The battery was completely dead super dead and now my car make a slight grind, a brief seconds and then cranks. Check engine light will not go off.
2004 Chevrolet Impala RecallsEngine Oil Leaks Onto Exhaust Manifold
Engine oil can leak onto the exhaust manifold, causing a fire hazard. This concern was addressed in previous recall notifications, but improvements to the repair have been made. Dealers will make improved repairs free of charge to resolve the concern.
Engine oil may leak from the valve cover area, which can cause a burning odor and increase risk of fire. Dealers will replace the spark plug wire retainer to redirect the dripping oil on affected vehicles, and will replace the left valve cover gasket on vehicles with the 3.8L V6 supercharged engine.
Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will provide two replacement key rings and key cover on all ignition keys to correct this concern.