Problems · by component

2004 GMC Envoy engine and engine cooling problems

41 owner complaints to NHTSA about the 2004 GMC Envoy cite engine and engine cooling, 6% of all 718 complaints for this model year.

Complaints
41
6% of all complaints
Crashes
1
Reported by owners
Fires
3
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the engine and engine cooling

Verbatim from NHTSA complaints, newest first
“fraudulent emissions certificate fraudulent mileage fraudulent vin EMISSIONS CERTIFICATE matching an out of state TEXAS vin [XXX] CALIFORNIA [XXX] . FRAUDULENT DEALER SALE. FRAUDULENT DMV CALIFORNIA REGISTRATION AND TITLE TRANSFER. LIQUIDS GASES ODORS FUMES EMITTING FROM VEHICLE [XXX] [XXX] [XXX] HAVE ILLLEGAL TRANSFER OF TITLE TO MYSELF FROM DEALER AND ILLEGAL TRANSFER OF FRAUDED REGISTRATION FROM DEALER. AND BELIEVE VIN IS NOT ACCURATE ACCORDING TO VEHICLE NOR BARCODE OR OTHER COMPONENTS”
Owner complaint to NHTSAFiled Aug 18, 2024Engine and engine coolingODI 11609248
“TL* THE CONTACT OWNS A 2004 GMC ENVOY. WHILE THE VEHICLE WAS STATIONARY, THE EXHAUST MANIFOLD FRACTURED AND THE HEAT FROM THE EXHAUST MANIFOLD DAMAGED THE FRAME OF THE VEHICLE. THE CONTACT STATED THAT THE FAILURE CAUSED SEVERE RUST AND CORROSION. IN ADDITION, THE CONTACT STATED THAT THERE WERE HOLES IN THE FRAME. A DEALER WAS NOT MADE AWARE OF THE FAILURE. THE MANUFACTURER STATED THAT THE FAILURE WAS NOT SAFETY RELATED AND THERE WERE NO RECALLS ON THE VEHICLE. THE FAILURE MILEAGE WAS 136,000.”
Owner complaint to NHTSAFiled Jan 5, 2018Engine and engine cooling, StructureODI 11060757
“WHILE DRIVING WITH PASSENGERS IN CAR, SMOKE STARTED TO COME FROM THE FLOOR AREA IN THE BACK SEAT AREA. IMMEDIATELY DROVE CAR TO A CAR SERVICE SHOP TO HAVE INSPECTED TO DETERMINE WHERE SMOKE WAS COMING FROM. THE CAR TECHNICIAN WAS UNABLE TO DETERMINE WHERE THE SMOKE WAS COMING FROM OTHER THAN FROM THE FLOOR AREA IN THE BACK. HAVE BEEN REPLACING A RADIATOR BECAUSE THE ENGINE KEEPS RUNNING HOT. HAD A NEW RADIATOR INSTALLED. THEN BEGAN TO HAVE PROBLEMS WITH THE ANTI-FREEZE DISAPPEARING FROM THE RADIATOR AND THE RESERVOIR. TOOK CAR IN AND HAD A PRESSURE TEST PERFORMED. THE MECHANIC WAS KNOWLEDGEABLE OF THE PROBLEM AND IDENTIFIED THAT THE ANTI-FREEZE WAS LEAKING FROM THE REAR HEATER CORE. I WAS ASKED IF I HEARD A CLICKING SOUND IN THE INSIDE OF THE CAR COMING FROM THE BACK. I TOLD HIM I HEARD IT OFF AND ON. IT WAS DETERMINED THAT WAS WERE THE SMOKE CAME FROM EARLIER. *TR”
Owner complaint to NHTSAFiled Aug 21, 2014Engine and engine coolingODI 10626947
“ON THURSDAY 12/27/2011 ON MY WAY TO WORK PULLED INTO HESS GAS STATION PUT MY TRUCK IN PARK LOOK UP AND I WAS ROLLING BACK... LOOK AT THE GEAR SHIFT AND IT WAS IN PARK BUT ON MY DASHBOARD THE TRUCK WAS IN 1ST GEAR TRIED TO PULL IT OUT OF PARK BY THE HAND GEAR AND IT KEPT ROLLING BACK AND FORTH THEN IT FINALLY LOCK UP IN PARK BUT STILL ON THE DASHBOARD IT SAID IT WAS IN 1ST GEAR UNABLE TO CHANGE GEARS, HAD TO HAVE MY TRUCK TOWED TO WHERE I PURCHASED IT FROM AUTOLINE IN JACKSONVILLE FLA. FOUND OUT THE SHIFTER CABLE POP IN HALF HAD TO HAVE IT REPLACED PURCHASED THE SHIFTER CABLE AND SHIFTER ASSEMBLY COSTING JUST FOR THE PARTS OVER $200.00 AT 292.00 LABOR I ONLY HAD THE TRUCK 3 MONTHS AND SINCE THEY CLAIM IT WAS WEAR AND TEAR IT WAS NOT COVERED UNDER MY EXTENDED WARRANTY I PURCHASED. THIS WAS A VERY SCARY MORNING GLAD I WAS NOT DRIVING IT AND PULLED OVER TO PURCHASE GAS THAT MORNING. WHAT I DON'T UNDERSTAND IS WHY IS THIS CONSIDERED WEAR AND TEAR..... *TR”
Owner complaint to NHTSAFiled Jan 5, 2012Engine and engine cooling, Power trainODI 10442469
“LOW ENGINE POWER LIGHT COMES ON AND VEHICLE SHUTS DOWN. SOMETIMES YOU CAN RESTART IT WITH NO PROBLEMS. NOW IT SPUTTERS AND HAS VERY LITTLE POWER. IF YOU TURN ON ANYTHING IT MAKES IT WORSE. IT SURGES AND STALLS. IT CHUGS ALONG UNTIL YOU TURN OFF AS MAY ELECTRICAL ITEMS AS POSSIBLE. *TR”
Owner complaint to NHTSAFiled Nov 22, 2011Engine and engine coolingODI 10436810
“2004 ENVOY XUV, IMPECCABLY MAINTAINED, HAD *NO* RESPONSE TO ACCELERATOR AS I MADE A LEFT TURN AT A LIGHT ACROSS ONCOMING TRAFFIC. SERVICE ENGINE SOON AND REDUCED ENGINE POWER LIGHTS ILLUMINATED ON DASH. WAS FORTUNATE NOT TO HAVE AN ACCIDENT. PULLED TO SIDE OF ROAD. TURNED OFF ENGINE. RESTARTED, AND IT RAN OKAY BUT THE SERVICE ENGINE SOON LIGHT REAPPEARED. DROVE ANOTHER 35 MILES WITH LIGHT ON. THE NEXT MORNING IT HAD RE-SET AND THE LIGHT IS GONE FROM THE DASH. HOW IN THE WORLD DOES GM EXPECT US TO BE ABLE TO REPLICATE SUCH INCIDENTS FOR A TECH TO FIX? SUCH FAILURES WILL EVENTUALLY KILL SOMEONE. *TR”
Owner complaint to NHTSAFiled Sep 23, 2011Engine and engine cooling, Electrical systemODI 10426893

Showing 6 of 41 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026NHTSA vehicle page

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