My 2008 yukon xl is giving several error messages. Traction control off, service stabilitrac, check engine light remains on even after I've replaced the throttle position sensor, coil pack, full tune up nothing seems to fix the issue and I see that I'm not the only one experiencing this issue. Any insight on resolving this problem would be gladly appreciated it is also using more oil than usual.…
2008 GMC Yukon engine problems
severe 15 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
15
Recalls
0
Avg fix
$3,100
1fire
When does it fail?
Of the 15 engine complaints filed for the 2008 GMC Yukon, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2008 GMC Yukon has a cluster of serious engine issues reported by owners: sudden power loss in limp mode, hesitation on acceleration, stalling without warning, excessive oil consumption, and at least one documented underhood fire. Multiple owners report dealer-acknowledged defects with no fixes available, and some complaints note that issues recur even after attempted repairs.
The 2008 GMC Yukon engine complaints span multiple failure patterns with significant safety implications. Owners report sudden, unprovoked power reduction to near-stop speeds (limp mode) while highway driving at 35–65 mph, leaving vehicles stranded for hours. A 2–3 second acceleration lag on the XL and Denali models, classified by GM bulletin PIP4112J as "normal operation," creates dangerous passing and highway-merge situations where transmission downshifts violently; dealers confirm they cannot address it.
Stalling occurs without warning at both highway speeds and during acceleration from standstill. One owner experienced an underhood fire at 64,000 miles. Severe oil burning appears across multiple owners despite no visible leaks, with one owner confirming it persists even after disabling cylinder deactivation.
A manufacturer defect statement was issued for remote-start engine shutdown and rattling—GM acknowledged dozens of units were produced incorrectly with no repair available. One complaint involved an aftermarket non-CARB catalytic converter installation that triggered check-engine codes and progressive failure leading to full engine replacement. A fuel system control module recall (09V154000) affects water intrusion into the module, causing no-start and stalling conditions.
Several owners report engine failure or deterioration requiring $10,000+ replacements at 60,000–64,000 miles on regularly maintained vehicles, outside warranty coverage.
Same GMC Yukon engine reports on nearby years: 2007
Failure modes owners describe
Check Engine Light and Catalyst System Codes from Non-Compliant Aftermarket Converter
Installation of a non-CARB-compliant aftermarket catalytic converter (MagnaFlow) triggered P0420 and P0430 codes. The converter created excessive backpressure, causing reduced acceleration, poor fuel economy, and engine overheating. Performance deteriorated progressively with continued driving, leading to misfiring, shaking under load, and eventual complete engine failure.
When: Shortly after installation of aftermarket converter; engine failure developed over extended use
Symptoms owners cite: Check engine light illumination; Reduced acceleration and power loss; Poor fuel economy; Engine shaking and misfiring; Overheating; Engine block failure
Codes mentioned: P0420, P0430
Repairs/costs cited: Engine replacement required; costs around $10,000 in separate complaint; aftermarket converter removal necessary
Recalls/TSBs owners mention: Product (MagnaFlow converter) was removed from Walmart marketplace after complaint, indicating acknowledgment of non-compliance with New York state regulations
Acceleration Hesitation and Transmission Lag (PIP4112J)
Vehicles experience 2-3 second delay in acceleration response when pressing the gas pedal, particularly during passing, highway entry, mild hill climbs, or emergency maneuvers. After the delay, the transmission downshifts aggressively (to first or second gear), causing sudden power surge and jerky acceleration. Issue classified in bulletin PIP4112J as 'normal operation characteristic' but owners report it as a serious safety hazard.
When: Present since day one of ownership; occurs consistently across multiple driving scenarios
Symptoms owners cite: 2-3 second delay in acceleration response; Abrupt transmission downshift after delay; Engine roaring and sudden power surge; Engine choking on mild elevation at 80-90% throttle; Almost coming to complete stop during hill climbs
Repairs/costs cited: Service bulletin PIP4112J identifies issue but provides no repair; dealers unable to address per bulletin
Recalls/TSBs owners mention: GM bulletin PIP4112J (issued July 2011) classifies as normal operation characteristics; no repair available
Fuel System Control Module Water Contamination (Recall 09V154000)
Water seepage into fuel system control module due to adhesive separation of RTV (room temperature vulcanizing) seal between seal and housing. Water intrusion causes electrical shorts or open circuits, leading to check engine light illumination, diagnostic trouble codes, hard starting, no-start conditions, or stalling.
When: Affects 2009 model year vehicles; timing of failure not specified in narratives
Symptoms owners cite: Service engine soon light illumination; Hard start condition; No-start condition; Engine stalling; Setting of diagnostic trouble codes
Repairs/costs cited: Recall repair required; involves fuel system control module inspection and sealing or replacement
Recalls/TSBs owners mention: GM recall 09V154000; 27,188 vehicles affected across multiple Cadillac, Chevrolet, and GMC models
Sudden Power Reduction and Limp Mode
Engine abruptly reduces power to 20 mph or 1 mph (limp mode) without warning, often while highway driving. Dashboard illuminates 'engine power reduced' message along with stability control disabling and other warnings. Vehicle becomes immobilized for extended periods. Issue recurs multiple times. Causes are not identified in narratives.
When: Occurs during highway driving at 35-65 mph; affects vehicles from early to mid-life
Symptoms owners cite: Abrupt engine power reduction to near-stall speeds; Dashboard warning: 'engine power reduced'; Stability control disabled; Vehicle immobilization lasting 2+ hours; Gas pedal input produces no response
Repairs/costs cited: Vehicles required towing or extended rest periods before power restoration; underlying cause not identified in narratives
Engine Fire Under Hood
Vehicle stalled at 35 mph and caught fire under the hood. Fire department extinguished blaze. Origin of fire unknown. Vehicle declared total loss by insurance company.
When: At 64,000 miles
Symptoms owners cite: Engine stalling at operating speed; Fire under hood
Repairs/costs cited: Vehicle destroyed; no repair attempted
Recalls/TSBs owners mention: Neither dealer nor manufacturer were notified by owner
Stalling with Check Engine Light
Engine stalls at highway speeds (55-65 mph) with check engine light illumination. One case involved oil consumption issue; another case could not be replicated by dealer and was not repaired.
When: One case at 30,000 miles with recurrence at 60,000 miles; another at 65 mph without mileage specified; hybrid model at 15,000 miles
Symptoms owners cite: Engine stalling at highway speeds; Check engine light illumination
Repairs/costs cited: One case: dealer repaired oil consumption issue but details unknown; recurred at 60,000 miles. Other cases: no repairs completed.
Recalls/TSBs owners mention: Manufacturer notified in one case only
Abrupt Stalling from Standstill Acceleration
Vehicle abruptly stops without warning when accelerating from 0-10 mph. All engine indicator lights flash with audible malfunction warnings. Vehicle must be placed in Park and restarted to resume operation. Condition creates risk of rear-end collision during traffic acceleration.
When: Timing not specified
Symptoms owners cite: Abrupt stalling from low-speed acceleration; Flashing engine indicator lights; Audible malfunction warnings
Engine Noise and Shutdown on Remote Start
Vehicle makes loud noise and shuts off engine when using remote start feature. Additionally, rattling noise is heard in engine compartment. Manufacturer stated dozens of 2008 model year vehicles were made incorrectly and acknowledged no fix exists for the issue.
When: Issue present during remote start use; model year production defect
Symptoms owners cite: Loud noise during remote start; Engine shutdown during remote start; Rattling noise in engine
Recalls/TSBs owners mention: Manufacturer acknowledged dozens of vehicles produced incorrectly with no available fix
Motor Mount Rusting
Motor mount corrodes and rusts, requiring replacement. Identified during routine dealer inspection.
When: Mileage unknown
Symptoms owners cite: Rusted motor mount
Repairs/costs cited: Motor mount replacement required
Recalls/TSBs owners mention: Manufacturer notified of failure
Severe Oil Consumption
5.3L engine consumes oil at abnormal rates with no visible leaks. Mechanic confirmed oil is burning rather than leaking. Disabling fuel management system (cylinder deactivation) slowed but did not eliminate consumption. Owner reports issue from 150,000 to 180,000 miles of ownership.
When: Observed from 150,000 to 180,000 miles; likely present earlier but noted at higher mileage
Symptoms owners cite: Rapid oil consumption without visible leaks; Oil burning in combustion
Repairs/costs cited: Disabling cylinder deactivation/fuel management system provides partial mitigation but does not resolve issue
Synthesized from 15 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had engine trouble with your 2008 GMC Yukon?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2008 GMC Yukon?
It's a meaningful issue. 15 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 10 complaints that reported odometer mileage, most engine failures cluster between 30,000 and 120,000 miles, with the median around 111,280. A quarter of owners report trouble before 30,000; a quarter make it past 120,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2008/GMC/Yukon.
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. Some links on this page are affiliate links.