2006 GMC Envoy Engine cooling Problems
- Complaints
- 6about this part
- Share
- 2%of 352 total for the year
- Median mileage
- 82,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 2006 GMC Envoy, 2% of the 352 complaints for this model year. Where a mileage was given, the median is 82,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“2006 Gmc Envoy; replaced timing chain, failure of fuel pump, oil pump, electrical system driver's side door, washer fluid pump, tailgate latch failure and rear wash fluid line failure. Replaced or fixed all issues except, tailgate latch, rear washer fluid line, oil pump issue and SUV will not hold oil pressure.”
NHTSA complaint #10343215, filed 2010-07, 125,490 miles“The contact owns a 2006 Gmc Envoy. While driving approximately 35 MPH, the contact noticed smoke escaping from the air conditioner unit. The contact stopped the vehicle, looked under the hood and noticed that the resister and motor wires were melted. The vehicle was not taken to the dealer for diagnostics or repairs. The approximate failure mileage was 100,000.”
NHTSA complaint #10408657, filed 2011-06, 100,000 miles“The contact owns a 2006 GMC Envoy. The contact stated that occasionally the vehicle was not able to be started. Additionally, while driving at various speeds, the steering wheel seized and the vehicle lost motive power. The vehicle was taken to an independent mechanic. The mechanic informed the contact that no codes appeared on the code reader and replaced the battery; however, the failure recurred. The vehicle was then taken to the dealer and diagnosed that the computer needed to be reset after the battery was replaced. The dealer reset the computer; however, the failure recurred. …”
NHTSA complaint #11455737, filed 2022-03, 142,000 miles“The contact owns a 2006 Gmc Envoy. The contact stated that while driving approximately 45 MPH, the check engine warning light illuminated. The vehicle was taken to the dealer where they advised the contact that the engine was running lean and they were unable to make repairs until the component had actually failed. The manufacturer was later contacted and offered no assistance. The failure mileage was approximately 64,000. Updated 05/08/12 the consumer stated the vehicle was repaired. The intake manifold needed to be tightened. Updated 05/14/12”
NHTSA complaint #10450046, filed 2012-03, 64,000 miles“The contact owns a 2006 Gmc Envoy. While driving approximately 30 MPH, the vehicle vibrated and the engine stalled intermittently. Prior to the failures, the engine warning light illuminated on the instrument panel. The vehicle was taken to an authorized dealer and they replaced the intake valve, head gasket, timing belt, and cylinder head. The failures recurred on a separate occasion. The vehicle is currently not being driven due to the safety risk involved. The contact will take the vehicle to the authorized dealer for diagnostic testing and repair. …”
NHTSA complaint #10238047, filed 2008-08, 14,000 milesRelated service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10239101Jun 30, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
Engine cooling: other model years
Other parts of the 2006 GMC Envoy
180 complaintsElectrical system
89 complaintsExterior lighting
48 complaintsVisibility (wipers, defrost, mirrors)
34 complaintsEngine
20 complaintsOther or unknown
13 complaintsSteering
13 complaintsElectronic stability control
12 complaintsTransmission and drivetrain
12 complaintsAir bags
9 complaintsEquipment
7 complaintsBrakes
6 complaints
← All problems reported for the 2006 GMC Envoy
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology