The 2010 GMC Savana with 6.0L V8 (LY6/L96) is a workhorse full-size van that's reliable under proper maintenance, but suffers from notorious AFM (Active Fuel Management) lifter failures and transmission cooling issues that can lead to catastrophic engine and trans damage if ignored.
AFM Lifter Failure Leading to Engine Damage
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Ticking or tapping noise from engine, especially on cold start, Check engine light with P0300-series misfire codes or P0521 oil pressure, Rough idle or loss of power, Metal shavings in oil during changes
Fix: AFM system uses collapsing lifters on cylinders 1, 4, 6, 7 that fail and wipe cam lobes. Proper fix requires cam replacement, all 16 lifters, AFM delete kit, and often valley cover. If caught late, metal debris circulates and destroys bearings, requiring full engine rebuild or replacement. 12-18 hours labor for cam/lifter job, 25-35 hours for short block.
Estimated cost: $2,800-4,500 for cam/lifters; $6,500-9,500 for short block or reman engine
Transmission Oil Cooler Line Failure and Cross-Contamination
Common · high severity
Typical onset: 90,000-140,000 mi
Symptoms: Milky or strawberry-pink fluid in coolant reservoir, Transmission slipping or delayed engagement, Engine overheating or transmission overheating warnings, Rapid transmission failure after coolant mixes with ATF
Fix: The integrated transmission cooler inside the radiator fails, allowing coolant and ATF to mix. Once contaminated, transmission is typically destroyed within days. Requires radiator replacement, transmission flush (if caught early), or full 4L80E/4L60E rebuild if damage occurred. External cooler install recommended. 8-12 hours for trans rebuild, 2-3 hours for radiator and flush.
Estimated cost: $800-1,200 preventive (radiator + ext cooler); $2,500-3,800 for transmission rebuild after failure
Intake Manifold Gasket Failure
Occasional · medium severity
Typical onset: 100,000-160,000 mi
Symptoms: Coolant loss with no visible external leaks, White smoke from exhaust on startup, Rough idle or misfire codes, Coolant smell in cabin or from engine bay
Fix: The plastic intake manifold gaskets deteriorate and leak coolant into the valley or into cylinders. Requires intake removal, new gaskets, and often valve cover gaskets while you're in there. Good time to inspect AFM components. 4-6 hours labor.
Estimated cost: $650-1,100
Fuel Pump and Sender Unit Failure
Occasional · medium severity
Typical onset: 120,000-180,000 mi
Symptoms: Intermittent no-start or stalling, Fuel gauge erratic or stuck on empty/full, Loss of power under load or hard acceleration, Whining noise from fuel tank area
Fix: Fuel pump assembly in the midship tank fails, often the pump motor or sender float. On extended vans, tank access requires body lift or bed removal. 3-5 hours labor depending on access, use OEM AC Delco units for longevity.
Estimated cost: $750-1,300
Transmission Mount Collapse
Common · low severity
Typical onset: 70,000-120,000 mi
Symptoms: Clunk when shifting from park to drive or reverse, Excessive vibration at idle in gear, Driveline shudder during acceleration, Visible sagging or cracking of rubber mount
Fix: Rear transmission crossmember mount deteriorates from engine torque and weight. Simple replacement, but worn mounts stress driveshaft and U-joints. 1-1.5 hours labor.
Estimated cost: $180-320
Alternator Failure (High-Output Units)
Occasional · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: Battery warning light or voltage gauge showing low voltage, Dimming lights or electrical issues, Grinding or squealing noise from alternator, Dead battery after short sits
Fix: High-output alternators (145A-160A common on cargo/passenger versions) fail from heat and duty cycle. Bearings or voltage regulator go first. 1.5-2 hours labor, use quality reman unit (Delco or Bosch).
Estimated cost: $450-750
Owner tips
Disable AFM via tuner or install AFM delete kit and switch to 5W-30 full synthetic with ZDDP additive — this is the single best preventive measure for the 6.0L
Replace the radiator and install an external transmission cooler before 100k miles — cheap insurance against $3,500 trans failure
Use AC Delco parts for fuel system, transmission, and driveline components — aftermarket quality is wildly inconsistent on these commercial platforms
Check transmission fluid condition every oil change — any pink or milky appearance means immediate radiator replacement
Avoid extended idle time in hot weather without auxiliary cooling or idle-up module — these vans run hot and cook transmissions
Buy one if maintained well and under 100k miles, but budget $3,000-5,000 for AFM delete and trans cooler upgrades immediately — skip any with ticking noises or unknown maintenance history.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: Side post terminals standard on GM full-size vans; battery located under hood
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Every control module on the 2008-2017 GMC Savana — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
📍 6L80/6L90 transmissions: integrated with valve body inside transmission (TEHCM - Transmission Electro-Hydraulic Control Module); Allison 1000 (diesel): external on driver side of transmission case
🔧 GM SPS2 via Tech 2 or MDI/MDI2
⚠️ TEHCM requires transmission pan removal and fluid service. Allison external TCM is 1.8 hours R&R.
Hybrid Powertrain Control Module / Battery Energy Control Module (HPCM/BECM)2.5 hr R&Rdealer / factory tool +1.0 hreAssist hybrid models only (2013-2016)▸ programming details
📍 Under rear cargo floor, mounted to frame rail near hybrid battery pack
🔧 GM SPS2 via MDI/MDI2
⚠️ High voltage system. Technician certification required. Battery pack isolation and safety procedures mandatory.
Electric Power Steering Control Module (EPSCM)2.5 hr R&Rdealer / factory tool +0.5 hr2014+ models with electric power steering (replaced hydraulic)▸ programming details
📍 Integrated with electric power steering motor assembly on steering column below dash
🔧 GM SPS2 via MDI/MDI2
⚠️ Steering angle sensor calibration required after replacement. Not available on all configurations.
Trailer Brake Control Module (TBCM)0.6 hr R&Rrelearn only +0.2 hrwith factory integrated trailer brake controller▸ programming details
📍 Under driver side dash, left of steering column near fuse block
🔧 Tech 2 or MDI for configuration
⚠️ Trailer gain and settings stored in module. User recalibration required after replacement.
Seat Control Module (SCM)0.6 hr R&Rrelearn only +0.2 hrwith power driver seat with memory▸ programming details
📍 Under driver seat, mounted to seat frame
🔧 Tech 2 or MDI for memory position relearn
⚠️ Memory positions stored in module. User must reprogram seat positions after replacement.
Radio / Infotainment Control Module (RCM/ICM)0.6 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Integrated with radio head unit in center dash stack
🔧 Tech 2 or MDI for VIN write and configuration
⚠️ Theft lock code may be required. OnStar integration requires separate programming if equipped.
Rear Vision Camera Module (RVCM)0.5 hr R&Rno codingwith rear vision camera (standard 2015+)
📍 Integrated with rear camera assembly above rear license plate or in rear door handle
⚠️ Plug-and-play after 2015. Earlier installations may require radio programming.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
General Motors, LLC (GM) is recalling certain 2003-2023 Chevrolet Express Cutaway and GMC Savana Cutaway incomplete vehicles equipped with wiring for an optional rear heating, ventilation, and air-conditioning (HVAC) system. When the HVAC blower motor circuit is left unused with exposed connectors and wiring, the circuit can corrode and overheat.
Consequence: An overheated electrical circuit increases the risk of a fire.
Remedy: Dealers will properly seal the rear HVAC blower motor circuits at the left side B-pillar, free of charge. Owner notification letters were mailed May 2, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GMC's number for this recall is N222386050.
EQUIPMENT · 18V267000
2018-04-26
General Motors LLC (GM) is recalling certain 2009-2014 Chevrolet Silverado HD and GMC Sierra HD, 2009 GMC Topkick 5000, 6000, 7000 and 8000 Series and Isuzu F Series, and 2009-2018 Chevrolet Express, and GMC Savana vehicles, equipped with certain Plastic-Handle Fire Extinguishers or Push Button 'Pindicator' Fire Extinguishers. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Consequence: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Remedy: GM will notify owners, instructing them to contact Kidde to get a replacement fire extinguisher, free of charge. The recall began June 11, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Isuzu customer service at 1-866-441-9638. GM's number for this recall is 18146.
AIR BAGS:FRONTAL · 14V117000
2014-03-17
General Motors LLC (GM) is recalling certain model year 2009-2014 Chevrolet Express and GMC Savana vans manufactured January 27, 2009, through March 7, 2014 with a gross vehicle weight rating of 10,000 pounds and less and equipped with front passenger air bags. In the affected vehicles, during a frontal impact below the air bag deployment threshold, if an unbelted front passenger's head hits the instrument panel above where the passenger air bag is located, the panel may not sufficiently absorb the impact. As such, these vehicles fail to meet the requirements of Federal Motor Vehicle Safety Standard number 201, "Occupant Protection in Interior Impact."
Consequence: In the event of a crash below the air bag deployment threshold, an unbelted front passenger seat occupant has an increased risk of injury.
Remedy: GM will notify owners, and dealers will modify the passenger instrument panel free of charge. Notices to the owners of the heavy duty vans were mailed on April 28, 2014. The recall began on May 19, 2014. Chevrolet owners may call 1-800-630-2438. GMC owners may call 1-866-996-9463. GM's number for this recall is 14082.
GENERAL MOTORS HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2010 CHEVROLET EXPRESS AND GMC SAVANA VANS 2500, 3500 AND 4500 SERIES. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH THE GENERATOR MAY DEVELOP A LOW RESISTANCE SHORT WITHIN THE VOLTAGE REGULATOR.
Consequence: THE LOW RESISTANCE SHORT COULD EVENTUALLY GENERATE ENOUGH HEAT TO RESULT IN AN ENGINE COMPARTMENT FIRE.
Remedy: DEALERS WILL INSPECT AND REPLACE ANY SUSPECT GENERATORS IF NECESSARY FREE OF CHARGE. THE SAFETY RECALL BEGAN ON APRIL 12, 2010. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463 OR AT THE OWNER CENTER AT WWW.GMOWNERCENTER.COM.
Performance
Horsepower
323hp
Torque
373lb-ft
Capability & size
Towing capacity
10,000lb
Payload
4,250lb
Curb weight
5,700lb
Wiper blades
Full-size van, no rear wiper. Both blades are same length.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2010 GMC Savana 6.0L V8 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.