The 2022 GMC Savana with the 6.0L V8 (LY6) is a workhorse full-size van built on GM's proven BOF platform, but this generation suffers from well-documented AFM lifter failures and transmission cooling issues that can lead to catastrophic engine and driveline damage if ignored.
Active Fuel Management (AFM) Lifter Failure Leading to Catastrophic Engine Damage
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Ticking or tapping noise from engine at idle, especially when cold, Check Engine Light with P0300 random misfire or cylinder-specific misfire codes, Loss of power under acceleration, Metal shavings in oil during oil changes, Valvetrain clatter that worsens over time
Fix: AFM system uses collapsing lifters on cylinders 1, 4, 6, and 7. When lifters fail, they cause cam lobe wear, collapsed pushrods, and send metal debris through the engine. Often requires complete engine rebuild or replacement including pistons, bearings, crankshaft work, and sometimes head gaskets. Prevention is AFM delete kit ($500-800 parts, 6-8 hours labor) before failure occurs. Post-failure rebuild is 25-35 hours labor plus machine shop work.
Estimated cost: $6,500-12,000
Transmission Oil Cooler Line Failure and Internal Transmission Damage
Common · high severity
Typical onset: 70,000-110,000 mi
Symptoms: Pink or milky transmission fluid indicating coolant contamination, Transmission slipping or delayed engagement, Overheating transmission temperature warnings, Loss of coolant with no external leaks visible, Hard shifts or no forward gears
Fix: The 6L80/6L90 transmission cooler lines corrode internally or the cooler itself fails inside the radiator, allowing coolant and ATF to mix. This destroys clutch packs and seals. Requires new transmission oil cooler assembly, lines, full transmission flush or rebuild depending on contamination severity. If caught early (just lines), 4-6 hours labor. If internal damage occurred, add transmission rebuild at 18-24 hours labor.
Estimated cost: $800-1,200 (cooler/lines only) or $3,500-5,500 (with trans rebuild)
Transmission Mount Failure Causing Driveline Vibration
Common · medium severity
Typical onset: 50,000-90,000 mi
Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive vibration at highway speeds (60+ mph), Visible transmission sag when inspected on lift, Harsh engagement into gear
Fix: The factory rubber transmission mount deteriorates prematurely, especially on cargo vans with heavy loads. Replacement is straightforward but requires supporting the transmission. 1.5-2 hours labor. Use heavy-duty aftermarket mount for extended life.
Estimated cost: $250-450
Fuel Filter Clogging and Fuel Pump Stress
Occasional · medium severity
Typical onset: 40,000-80,000 mi
Symptoms: Hard starting after sitting overnight, Loss of power under load or acceleration, Engine stumbling or hesitation at highway speeds, Check Engine Light with lean fuel codes (P0171/P0174)
Fix: The frame-mounted fuel filter clogs faster than expected, especially with modern ethanol fuels. This puts strain on the in-tank fuel pump. Replace fuel filter every 30,000 miles preventively (not the manual's 50,000). Filter replacement is 0.8-1.2 hours. If pump fails from restriction damage, tank drop required: 3-4 hours labor.
Estimated cost: $180-280 (filter) or $800-1,200 (pump replacement)
Electrical System Wiring Harness Chafing and Shorts
Occasional · medium severity
Symptoms: Intermittent no-start conditions, Multiple electrical accessories failing simultaneously, Battery drain when parked, Blown fuses with no obvious cause, NHTSA recall for specific wiring harness routing issues
Fix: Wiring harnesses routed near the exhaust or sharp body panels can chafe through insulation, causing shorts. The 2022 had a recall for transmission control module wiring. Diagnosis is time-consuming (2-4 hours tracing circuits). Repair involves rerouting, adding protective sleeving, and sometimes replacing sections of harness. Labor varies wildly: 3-8 hours depending on location.
Estimated cost: $400-1,500
Piston Ring Sealing Issues and Excessive Oil Consumption
Occasional · medium severity
Typical onset: 80,000-150,000 mi
Symptoms: Burning one quart of oil every 1,000-2,000 miles, Blue smoke from exhaust on cold start or deceleration, Oil fouled spark plugs, Loss of compression in one or more cylinders
Fix: The 6.0L can develop piston ring carbon buildup or wear that causes oil consumption. Often related to AFM lifter debris circulating through the engine. If caught before cylinder wall scoring, can sometimes be addressed with piston ring replacement (18-22 hours labor). Severe cases need full shortblock replacement (28-35 hours).
Estimated cost: $3,200-5,800 (rings) or $7,500-11,000 (shortblock)
Owner tips
Disable AFM or install AFM delete kit early (under 60k miles) to prevent catastrophic lifter failure — single best investment for longevity
Change transmission fluid every 40,000 miles and inspect cooler lines annually for corrosion — do not follow the 'lifetime fill' myth
Replace fuel filter every 30,000 miles regardless of manual recommendations to protect the fuel pump
Use high-quality synthetic oil (5W-30) and change every 5,000 miles to combat piston ring carbon buildup
Inspect transmission mount at every oil change after 50k miles — cheap insurance against driveline damage
Buy one used only if AFM has already been deleted and transmission service history is documented — otherwise budget $8k-15k for eventual engine/trans work within 100k miles.
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: Located under hood; full-size commercial van application
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Every control module on the 2018-2026 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.
Tire Pressure Monitor Control Module (TPMS)no coding▸ programming details
📍 integrated within BCM
⚠️ TPMS receiver integrated into BCM; sensor relearn via scan tool or manual procedure
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.
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE · 24V839000
2024-11-07
General Motors, LLC (GM) is recalling certain 2022-2023 Chevrolet Express and GMC Savana vehicles. Incorrect software in the transmission control module (TCM) may result in harsh shifting, reduced power, unintended deceleration, rear wheel lockup, or cause the vehicle to move in an unintended direction.
Consequence: Rear wheel lock-up or moving in an unintended direction can increase the risk of a crash.
Remedy: Dealers will update the transmission control module software calibration, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact GM customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N242471620.
ELECTRICAL SYSTEM:WIRING · 23V247000
2023-04-06
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.
Performance
Horsepower
341hp
Torque
373lb-ft
Capability & size
Towing capacity
10,000lb
Payload
4,250lb
Curb weight
5,700lb
Wiper blades
Full-size cargo/passenger 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 2022 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.