2008 Chevrolet Express 3500

Reliability tier: verified - see /disclosure/

Engine: 6.0L Vortec LY6 (GM Vortec Gen IV, 6.0L)

Vortec 6000 LY6 (VVT iron block) in the heavy-duty vans, 4L80-E. Van calibration per the truck LY6 record; the vans carried this engine for the same two model years as the trucks.

Applicable failure modes (6)

• Cooling system wear: water pump, fan clutch, thermostat (L96)
• Exhaust manifold cracks / bolt failures (Vortec-era carryover)
• Fuel delivery: pump, injectors, pressure (L96/LY6)
• Ignition misfire: coils and spark plugs (L96/LY6)
• Oil consumption at high mileage (Gen IV theme)
• Valvetrain: lifter/rocker wear (no AFM on the HD 6.0)

Applicable parts (9)

• gm-hd-gas-l96: exhaust-manifold-gasket (honest catalog gap)
• gm-hd-gas-l96: exhaust-manifold (honest catalog gap)
• GM 6.0L HD Fuel Injection Rail (OEM)
• GM 6.0L HD Ignition Coil (OEM)
• GM 6.0L HD Knock Sensor (OEM)
• GM 6.0L HD Spark Plug 2008-2014 (OEM)
• GM 6.0L HD Thermostat Kit (OEM)
• gm-hd-gas-l96: valvetrain (honest catalog gap)
• GM 6.0L HD Water Pump Kit (OEM)

Platform recipes (3)

• Cooling wear service for the HD 6.0 gas (mode fm-l96-cooling-wear): tow-duty wear items - water pump seep, fan clutch engagement, thermostat housing, radiator seams
• Fuel delivery repair for the HD 6.0 gas (mode fm-l96-fuel-delivery, the top VOQ cluster): long cranks and lean misfire trace to the injector/pressure side
• Ignition service for the HD 6.0 gas (mode fm-l96-ignition): 16 plugs on the OHV V8, one coil per cylinder

Recalls that include this truck (1)

• 08V-313 (July 11, 2008) - POWER TRAIN:AUTOMATIC TRANSMISSION: GM IS RECALLING 2,481 MY 2008 CHEVROLET EXPRESS AND GMC SAVANA G-CUTAWAY FLEET VAN EQUIPPED WITH A 6.0L (RPO LY6) V8 ENGINE, 4L80E (RPO MT1) TRANSMISSION, 4.10 (RPO GT5) AXLE AND 75 MPH GOVERNOR (RPO 9D7). THESE...

Matched by the model and model year NHTSA lists for each recall - a recall often covers only part of a year's production, so read its text for the build dates and versions it names. Whether a recall is still open on your VIN is not known here; check nhtsa.gov/recalls. All recalls, investigations and bulletins for this engine: /recalls/gm-hd-gas-l96/

Reference for this truck