I HAVING PROBLEMS WITH MY STABILITRAK SYSTEM THE ENGINE LIGHTS COMES ON AND I JUST HAD THE THERMOSTAT SENSORS CHANGE WHICH TOOK THEM THREE TIME TO FIND THE PROBLEM AND MY DRIVERS WINDOW SENSORS WAS REPLACED AND THERE A SUDDEN THUMB WHEN YOU BRAKE AS THOUGHT YOU HAVE BEEN HIT FROM BEHIND. *TR
2008 GMC Envoy engine problems
moderate 12 complaints filed with NHTSA · avg repair $3,100
Complaints
12
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 4 most recent
TL* THE CONTACT OWNS A 2008 GMC ENVOY. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LAMP ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO THE DEALER AND THEY STATED THAT THE SEAL THAT WAS ON TOP OF THE FIRE WALL WAS DAMAGED. AS A RESULT, THE WATER WAS SIPPING INTO THE ENGINE COMPARTMENT AND WAS GETTING ON THE COIL PACKS AND THE PLUGS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURE…
I PURCHASED A 2008 ENVOY DENALI 7/08 DURING THE MIDDLE OF NOVEMBER WHILE DRIVE THE TEMP GAGE DROP TO THE LOWEST POINT AND STARTED CUTTING OFF HESITATING TO START. I THEN CONTACT ON-STAR THEY STATED IT WAS THE COOLING SYSTEM AND SHOULD BE TAKEN TO THE DEALER ON 10/19/09 I WENT AND WAS TOLD IT WAS THE TEMP SENOR WHICH WAS REPLACE THAT TUESDAY. THURSDAY THE SAME ISSUE ACCORD AGAIN I NOTIFIED ON-STAR …
2008 GMC ENVOY 51,000 MILES EXHAUST MANIFOLD CRACKED I HAD IT REPLACED AND WAS TOLD BY DEALER A 3 DAY WAIT WOULD BE NECESSARY AS THEY HAD USED STOCK PARTS ON ANOTHER ENVOY WITH SAME PROBLEM . ADVISED ME NOT TO DRIVE BECAUSE IT MAY CATCH FIRE. *TR
Common questions
How serious is the engine problem on the 2008 GMC Envoy?
It's a documented issue but not catastrophic. 12 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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