Problems · by component

2004 Chevrolet Impala engine problems

72 owner complaints to NHTSA about the 2004 Chevrolet Impala cite engine, 7% of all 1,073 complaints for this model year.

Complaints
72
7% of all complaints
Crashes
3
Reported by owners
Fires
11
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the engine

Verbatim from NHTSA complaints, newest first
“The contact owns a 2004 Chevrolet Impala. The contact stated that while driving approximately 40 MPH, the vehicle suddenly decelerated to approximately 20 MPH, and the instrument panel went black. The contact stated that the vehicle lost power steering functionality, and then lost motive power and stalled. The contact was assisted by persons nearby to push the vehicle to the side of the road. The vehicle was towed to a mechanic, who was unable to determine the cause of the failure. The vehicle was towed to the dealer, but was not diagnosed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 71,000.”
Owner complaint to NHTSAFiled Sep 5, 2025Electrical system, EngineODI 11685324
“TL* THE CONTACT OWNED A 2014 CHEVEROLET IMPALA. THE CONTACT STATED WHILE DRIVING AT 65 MPH AND WHEN THE CONTACT WAS EXITING OFF THE EXIT RAMP, THE VEHICLE STALLED. THE CONTACT TRIED TO RESTART THE VEHICLE BUT FAILED. THE CONTACT WAS ATTEMPTED TO PUSH THE VEHICLE TO SIDE OF THE ROAD WHEN THEY NOTICED SMOKE COMING FROM THE FRONT OF THE HOOD. THE CONTACT OPENED THE HOOD AND SAW A FIRE COMING FROM THE UNDERNEATH THE ENGINE. NO ONE WAS INJURED. THE FIRE DEPARTMENT CAME AND EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED. THERE WAS A BATTERY WARNING LIGHT ILLUMINATED FROM THE VEHICLE. THE VEHICLE WAS TOWED TO CHARITY TOWING AND RECOVERY (4106 S 7TH ST, PHOENIX, AZ 85040) THE VEHICLE WAS NOT INSPECTED FOR CAUSED OF FAILURE. THE LOCAL DEALER OR THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.”
Owner complaint to NHTSAFiled Feb 24, 2021EngineFire reportedODI 11397770
“MY IGNITION SWITCH HAS A RECALL THAT SOMETIMES TAKES FOREVER TO GET KEY TO TURN OVER, THE STEERING SHAFT AND KNUCKLES ALSO HAVE A RECALL THAT MAKE ME DRIFT AND SLIDE ON DRY ROADS, ENGINE AND COOLING SYSTEM AS WELL HAS RECALL.”
Owner complaint to NHTSAFiled Jan 19, 2021Steering, Engine, Fuel/propulsion systemCrash reportedODI 11388766
“TL* THE CONTACT OWNS A 2004 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED. THE CONTACT STATED THAT AFTER EXITING THE VEHICLE HE NOTICED AN OIL LEAK. THE VEHICLE WAS TOWED TO HIS RESIDENCE. WHILE INSPECTING THE VEHICLE, THE CONTACT BECAME AWARE THAT AN OIL LINE WAS DETACHED AND WAS VISIBLE FROM THE FRONT PASSENGER'S SIDE WHEEL WELL. THE OIL LINE WAS RE-ATTACHED. THE VEHICLE WAS TAKEN TO BOMNIN CHEVROLET MANASSAS LOCATED AT 8000 SUDLEY RD, MANASSAS, VA 20109, (571) 364-7245, AND THE SERVICE MANAGER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS THEN TAKEN TO INDEPENDENT MECHANIC AND THE CONTACT WAS INFORMED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 108,000.”
Owner complaint to NHTSAFiled Aug 6, 2020EngineODI 11343707
“TL* THE CONTACT OWNS A 2004 CHEVROLET IMPALA. THE CONTACT STATED THAT WHEN HE WAS DRIVING AT 60 MPH, HEAT STARTED COMING THROUGH THE AIR DUCTS AND THE VEHICLE WAS SHUT OFF WITHOUT WARNING. THE CONTACT WAS ABLE TO PULL OVER AND UPON LIFTING THE HOOD TO CHECK THE ENGINE, FLAMES BEGAN DISBURSING FROM THE ENGINE'S MANIFOLD. THE CONTACT THEN GRABBED A FLOOR MAT FROM HIS VEHICLE AND EXTINGUISHED THE FLAMES. THE CONTACT THEN RESTARTED THE VEHICLE AND THE CHECK ENGINE LIGHT ILLUMINATED, THE CONTACT THEN DROVE THE VEHICLE TO A PARKING LOT. NO POLICE OR FIRE REPORT WAS FILED AND NO INJURIES WERE REPORTED. THE DEALER NEITHER THE MANUFACTURER HAVE BEEN INFORMED OF THE VEHICLE FAILURE. THE FAILURE MILEAGE WAS 170,000. *TR CONSUMER STATED YOU COULD OBSERVE THE OIL POURS OUT THE VALVE COVER AND FAILED TO MENTION IT WAS MORE THE FRONT GASKET THAN BACK.*JB *TR 'PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'*JB”
Owner complaint to NHTSAFiled Jul 29, 2019EngineFire reportedODI 11240310
“TL* THE CONTACT OWNS A 2004 CHEVROLET IMPALA. THE CONTACT HAD NOT EXPERIENCED A FAILURE PRIOR TO BEING REPAIRED AT THE DEALER (PETE MOORE AUTOMOTIVE, 103 AND 106 NEW WARRINGTON RD PENSACOLA, FL 32506 850-456-7000, EXT 466) PER NHTSA CAMPAIGN NUMBERS: 15V701000 (ENGINE AND ENGINE COOLING) AND 15V201000 (ENGINE AND ENGINE COOLING). THE CONTACT WAS UNCERTAIN IF THE REPAIR CAUSED A FAILURE WHEN THE PARTS WERE REPLACED. THE CONTACT FELT THAT THE OEM PARTS MAY HAVE FAILED AND THAT THE MANUFACTURER NEEDED TO PROVIDE A SOLUTION TO THE DEALER TO REPAIR THE VEHICLE. THE CONTACT WAS UNABLE TO PREVENT AN INTERNAL OIL LEAK. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT THE REAR GASKETS WERE LEAKING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS NOT AVAILABLE.”
Owner complaint to NHTSAFiled Jun 6, 2017EngineODI 10993407

Showing 6 of 72 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.