There are 50 owner-reported engine complaints for the 2003 Chevrolet Impalain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Fuel line leaking gas under engine.
THE INCIDENT HAPPENED THIS MORNING AS I WAS LEAVING FOR WORK. MY CAR WAS PARKED IN OUR DRIVEWAY AND HAD NOT BEEN DRIVEN IN 2 DAYS. I GOT IN THE VEHICLE AND PUT THE KEY IN THE IGNITION AND AS SOON AS I TURNED IT TO START THERE WAS A LOUD BANG THAT SOUNDED LIKE A GUNSHOT WHICH I THOUGHT WAS A BACKFIRE. THE ENTIRE PLASTIC INTAKE MANIFOLD GASKET HAD EXPLODED INTO PIECES AND WHITE SMOKE BEGAN TO RISE FROM UNDER THE HOOD. WHEN I OPENED THE HOOD AND THE SMOKE CLEARED I BEGAN TO ASSESS THE ISSUE, I NOTICED THE MANIFOLD GASKET COVER HAD BEEN BLOWN COMPLETELY OFF AND THE MANIFOLD ITSELF WAS IN PIECES. I'VE DONE SOME RESEARCH AND THIS SEEMS TO BE A COMMON BUT UNCOMMON THING AMONG EARLY 2000'S GM VEHICLES.
COOLANT SYSTEM HAS BEEN AN ONGOING PROBLEM WITH THE VEHICLE. AFTER REFILLING COOLANT AND OIL, IT WAS DISCOVERED THAT OIL AND COOLANT WERE DRIPPING UNDERNEATH THE CAR. ACCORDING TO A GM REPRESENTATIVE, THERE ARE SERVICE BULLETINS OUT FOR THIS YEAR MAKE AND MODEL, BUT I'VE BEEN TOLD MY VIN IS NOT ONE OF THEM. IT HAS ALL THE SAME SYMPTOMS DESCRIBED IN OTHER BULLETINS. I'M NOT SURE HOW/WHY THIS VIN ISN'T INCLUDED WHEN THE SAME SYMPTOMS EXIST.
SECOND CAR AFFECTED. FIRST CAR BURNED AND TOTALED . SECOND CAR FOUND LOSS OF POWER STILL DRIVING PULED OVER FOUND EGR MOTOR STUCK IN FULL OPEN SENDING HOT EXHAUST INTO INTAKE. MELTING PLASTIC INTAKE WIRING AND FUEL LINE. FUEL LINE MELTED BUT DID NOT BURST. TOWED HOME. THIS SHOULD AT LEAST HAVE A FIRE LINE AT TOP OF INTAKE. THIS IS A PLASTIC LINE .
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. WHILE DRIVING APPROXIMATELY 50 MPH, THE VEHICLE LOST ACCELERATION. THE VEHICLE WOULD NOT ACCELERATE EVEN WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD AND NOTICED SMOKE EMERGING FROM THE ENGINE COMPARTMENT. THE CONTACT HAD TO USE A FIRE EXTINGUISHER TO EXTINGUISH THE FLAMES INSIDE THE ENGINE. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE. THE VEHICLE WAS NOT TAKEN TO THE DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE CONTACT ALSO MENTIONED THAT THE ORIGINAL OWNER PROVIDED A LETTER REGARDING NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE). THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 291,000.
MANUFACTURER RECALL NUMBERN150757 NHTSA RECALL NUMBER15V701 ENGINE OIL LEAKS ONTO MY MANIFOLD AND SMOKES I HAVE CONTACTED CAR DEALERS AND THEY SAY THEY WILL CONTACT ME AND NEVER DO
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. WHILE DRIVING 30 MPH, THE CONTACT NOTICED SMOKE COMING FROM UNDERNEATH THE HOOD. THE CONTACT WAS ABLE TO PULL THE VEHICLE OUT OF TRAFFIC, OPENED THE HOOD, AND NOTICED THAT THE ENGINE WAS ON FIRE. THE FIRE WAS EXTINGUISHED BY THE CONTACT. THE POLICE AND FIRE DEPARTMENTS WERE NOT NOTIFIED AND NO INJURIES WERE SUSTAINED. THE VEHICLE WAS TOWED TO THE DEALER, BUT THE DIAGNOSTIC RESULTS AND REPAIRS WERE UNKNOWN. THE CONTACT STATED THAT THE FAILURE RECURRED WHILE DRIVING HOME FROM THE DEALER. THE VEHICLE WAS TOWED BACK TO THE DEALER. THE CONTACT STATED THAT THERE WAS A RECALL ON THE VEHICLE, BUT WAS UNABLE TO PROVIDE THE NHTSA CAMPAIGN NUMBER. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS UNKNOWN.
WHILE DRIVING ON HIGHWAY GOT A FAINT FUEL SMELL (NOT SEEN IN PAST). SHORTLY ANOTHER MOTORIST FLAGGED ME AND SAID HE SAW FLAMES UNDER THE CAR. I PULLED OVER AND EVACUATED VEHICLE. SMOKE AND FLAMES CAME FROM ENGINE. THE VEHICLE HAS BEEN MAINTAINED NO RECENT ENGINE WORK. CAR HAD BEEN RUNNING FINE WITH NO PROBLEMS.
THE ENGINE CAUGHT ON FIRE FROM OIL LEAK
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. THE CONTACT STATED THAT THE ENGINE GASKET FAILED AND CAUSED ENGINE OIL TO LEAK ONTO THE RADIATIOR. THE LEAK DAMAGED THE LOWER AND UPPER INTAKE MANIFOLD. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 84,693.
YOUR RECALL 15757 IS INEFFECTIVE AND SOON TO BE A LAW SUIT IF SOMEONE DOES NOT TELL THE DEALER THAT THEY HAVE TO FIX THE PROBLEM NOT HIDE BEHIND THE FACT THAT THEY STILL DON'T HAVE THE PARTS. I CALLED NEWBURGH AND POUGHKEEPSIE AND THEY DON'T HAVE PARTS. I DRIVE CHILDREN IN THIS VEHICLE AND IF ANYTHING LAW SUIT WILL BE INITIATED
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. THE CONTACT STATED THAT THE ENGINE VALVE COVER GASKET FAILED CAUSING THE ENGINE OIL SPILL ON THE MANIFOLD AND EMITTED SMOKE. THE VEHICLE WAS TOWED TO THE DEALER. HOWEVER, THE DEALER ADVISED THAT PARTS WERE NOT AVAILABLE PERFORM NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING). THE CONTACT ALSO STATED THAT THE REPAIR HAD EXCEEDED A REASONABLE TIME. THE FAILURE MILEAGE WAS NOT AVAILABLE.
YES MY ENGINE OIL IS LEAKING AND IT MAKING MY CAR HOT AND I THINK MY OIL PAN IS FULL OF OIL EVERY TIME I PUT OIL IN IT IT RUN STRAIGHT OUT AND I CAN'T DRIVE MY CAR MORE THAN 20 MINUTES STRAIGHT OR IT WILL JUST CUT COMPLETE OFF AND MY BRAKES IS GOING OUT THEY WANT STOP ON TIME
2003 CHEVROLET IMPALA. CONSUMER REQUESTS REIMBURSEMENT FOR FLUID LEAKAGE ONTO EXHAUST MANIFOLD RECALL NOTICE. *SMD THE CONSUMER STATED THE VEHICLE REQUIRED THE MANIFOLD TO BE REPAIRED UNDER RECALL WHICH COULD NOT BE COMPLETED UNTIL ANOTHER FAILURE WAS REPAIRED. THE CONSUMER STATED THE REPAIR WAS A FAILURE CAUSED BY THE FAILURE OF THE MANIFOLD.*JS
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. UPDATED 05/03/16*LJ UPDATED 10/20/2017*JS
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. WHILE DRIVING 45 MPH, A STRONG ODOR OF FUEL WAS NOTICED AND THE OIL WARNING LIGHT ILLUMINATED. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS FOR THE RECALL WERE NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN. PARTS DISTRIBUTION DISCONNECT.
2003 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO NOT PARTS AVAILABLE TO REPAIR ENGINE OIL LEAK RESULTING IN ENGINE COMPARTMENT FIRE RECALL NOTICE. *SMD
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. AFTER DRIVING THE VEHICLE FOR A SHORT PERIOD OF TIME, IT CAUGHT FIRE. THE CONTACT STATED THAT THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A FIRE REPORT WAS NOT FILED AND NO INJURIES WERE SUSTAINED. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. THE CONTACT RECEIVED A NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING) HOWEVER, THE PARTS FOR THE RECALL WERE NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. THE VIN WAS NOT AVAILABLE.
TL* THE CONTACT OWNS A 2003 CHEVROLET IMPALA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. ....UPDATED 07/05/16 *BF UPDATED 07/21/16.*JB
Showing 1–20 of 50 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026