The 2014 GMC Savana with the 6.0L V8 (LY6/L96) is a workhorse van built on GM's long-running full-size platform. While generally durable for commercial use, this generation suffers from catastrophic Active Fuel Management (AFM) failures that destroy engines, transmission cooler line leaks, and electrical gremlins that plague daily reliability.
Active Fuel Management (AFM) Lifter and Camshaft Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Loud ticking or tapping from engine at idle, worsens when warm, Check engine light with P0300-series misfire codes or P0521 oil pressure, Metal shavings in oil, low oil pressure warnings, Complete engine failure if lifter fragments travel through oiling system
Fix: AFM system allows cylinder deactivation lifters to collapse or seize, wiping camshaft lobes and requiring full engine rebuild or replacement. Proper fix demands camshaft, lifters, AFM delete kit, valley cover, and often piston/bearing work if debris circulated. Expect 25-35 labor hours for complete engine-out rebuild.
Estimated cost: $4,500-8,500
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 60,000-120,000 mi
Symptoms: Transmission fluid puddles under vehicle, often passenger side, Low fluid warnings or slipping shifts if leak goes unnoticed, Visible corrosion or fluid seepage at radiator cooler connections, Burnt transmission smell if fluid level drops significantly
Fix: Steel cooler lines rust through where they connect to radiator or run along frame rails, especially in salt-belt states. Replacement requires new lines and often radiator-mounted cooler fittings. 2-3 hours labor if caught early, but can cascade to transmission damage if driven low on fluid.
Estimated cost: $350-750
Transmission Mount Failure
Common · medium severity
Typical onset: 70,000-130,000 mi
Symptoms: Loud clunk when shifting from park to drive or reverse, Vibration through floor at idle, especially in gear, Visible sagging or torn rubber on crossmember mount, Driveline shudder during acceleration
Fix: The rear transmission mount (crossmember mount) deteriorates from heat and load cycles, particularly on cargo vans or those with heavy upfits. Replacement is straightforward but requires supporting the transmission. 1.5-2 hours labor.
Estimated cost: $250-450
Fuel Filter Housing Corrosion and Air Intrusion
Occasional · medium severity
Typical onset: 90,000-160,000 mi
Symptoms: Hard starting after sitting overnight, extended cranking, Rough idle or hesitation during acceleration, Fuel odor near driver-side frame rail, Check engine light with lean fuel trim codes (P0171/P0174)
Fix: In-line fuel filter housing (driver frame rail, ahead of fuel tank) develops pinhole leaks or O-ring failures allowing air into system. Requires filter housing assembly replacement and purging air from lines. 1-1.5 hours labor.
Estimated cost: $200-400
Instrument Cluster and HVAC Control Failures
Occasional · low severity
Symptoms: Gauges flickering, going dead, or reading incorrectly, HVAC controls unresponsive or erratic temperature/fan operation, Odometer display blank or partial segments missing, Intermittent battery/charging warnings with good charging system
Fix: Circuit board solder joints crack from heat cycles and van vibration. Cluster or HVAC control module requires removal and either professional rebuild or replacement. Cluster R&R is 1-1.5 hours; rebuild services available for $200-300, new clusters run $400-600.
Estimated cost: $350-800
EVAP Vent Solenoid and Purge Valve Failures
Occasional · low severity
Typical onset: 80,000-140,000 mi
Symptoms: Check engine light with P0449, P0455, or P0496 EVAP codes, Fuel smell near rear of vehicle, Difficulty fueling, pump clicks off repeatedly, Failed emissions test
Fix: EVAP vent solenoid (mounted on frame near fuel tank) and purge valve (engine bay) fail from heat and corrosion. Vent valve is more common culprit. Diagnosis requires smoke test to rule out leaks. 1-1.5 hours labor per component.
Estimated cost: $250-500
Power Window Switches and Regulator Failures
Occasional · low severity
Symptoms: Driver or passenger window inoperative or works intermittently, Window drops into door with grinding noise, Switch panel feels hot or shows melted plastic smell, Window moves slowly or gets stuck partway
Fix: Master switch assembly fails from high current draw through cheap contacts; regulators crack plastic components. Switch replacement is 0.5 hours, regulator requires door panel removal and takes 1.5-2 hours per side. Recall 14V374 addressed driver switch fire risk but not long-term durability.
Estimated cost: $150-450
Owner tips
Disable AFM with Range/DoD delete kit if engine is still healthy—$400-800 upfront insurance against $6k+ engine rebuild
Inspect transmission cooler lines annually if in rust belt; pre-emptive replacement at 80k saves transmissions
Use Dexos-spec full synthetic oil and 5,000-mile intervals—AFM lifters are oil-starved by design
Install auxiliary transmission cooler if using for towing or heavy cargo—these transmissions run hot
Check EVAP vent valve when fuel fill problems start—don't throw parts at it without smoke test
Buy only with documented AFM delete or budget $5k-8k for inevitable engine work; otherwise solid commercial platform if you can wrench or have deep pockets.
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.
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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.
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS · 18V295000
2018-05-03
General Motors LLC (GM) is recalling certain 2014-2017 Chevrolet Express and GMC Savana vehicles equipped with power windows. Liquid may leak into the driver's power window switch and cause corrosion, resulting in high electrical resistance.
Consequence: High electrical resistance can increase the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the driver side window switch, free of charge. The recall began August 10, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 18155.
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.
TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS · 16V184000
2016-04-01
General Motors LLC (GM) is recalling certain model year 2014-2016 Chevrolet Express and GMC Savana incomplete vehicles equipped with a 159 inch wheel base manufactured August 2, 2013, to January 30, 2016. The affected vehicles were shipped to final stage manufacturers without a tire pressure monitoring system (TPMS). As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring Systems."
Consequence: Without a TPMS, the driver would not be alerted if one or more tires became under inflated. Driving with under inflated tires increases the risk of a crash.
Remedy: GM will notify owners, and dealers will install the hardware and software necessary to equip the vehicles with a TPMS, free of charge. The recall began on May 25, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 15819.
ELECTRICAL SYSTEM · 14V614000
2014-10-01
General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles. In the affected vehicles, the chassis electronic module may be internally contaminated, resulting in an electrical short.
Consequence: If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GMs number for this recall is 14515.
FUEL SYSTEM, OTHER · 14V500000
2014-08-13
General Motors LLC (GM) is recalling certain model year 2011-2014 Chevrolet Express compressed natural gas (CNG)vehicles manufactured September 10, 2010, to April 28, 2014, and GMC Savana CNG vehicles manufactured May 23, 2011, to April 21, 2014. The affected vehicles may leak natural gas from the CNG high pressure regulator.
Consequence: A natural gas leak in the presence of an ignition source increases the risk of a fire or explosion.
Remedy: GM will notify owners, and dealers will replace the high pressure regulator, free of charge. The recall began February 13, 2013. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 14321.
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.
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