150601002J
Service Bulletin Details
Public Details for: 150601002J
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or mil illuminated.
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Bulletin No.: Service Bulletin Date: 15-06-01-002J May, 2020 TECHNICAL Subject: Engine Misfire/Tick Noise, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300 Set Models: 2015-2019 Cadillac Escalade 2016-2019 Cadillac CTS-V 2014 Chevrolet Silverado 1500 2014-2019 Chevrolet Corvette 2015-2018 Chevrolet Silverado 2015-2019 Chevrolet Suburban, Tahoe 2016-2019 Chevrolet Camaro 2019 Chevrolet Silverado LD 2014 GMC Sierra 1500 2015-2018 GMC Sierra 2015-2019 GMC Yukon, Yukon XL 2019 GMC Sierra Limited Equipped with 5.3L Engine (RPOs L83, L8B) or 6.2L Engine (RPOs L86, LT1, LT4) Attention: This bulletin also applies to any of the above models that may be sold/Exported to the following Regions/Countries: North America, Europe, Uzbekistan, Russia, Middle East, Iraq, Israel, Palestine, Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Venezuela, Japan, Cadillac Korea (South Korea), GM Korea Company, China, Taiwan, Thailand, Singapore, Philippines, Egypt, Other Africa, South Africa This bulletin has been revised to add the Export regions to the Attention statement, add Exhaust Manifold Bolt P/N 11546600 and change the Warranty coverage statement to include both Powertrain and Emissions. Please discard Corporate Bulletin Number 15-06-01-002I. Condition Correction Some customers may comment on a malfunction indicator lamp (MIL) on and/or an engine misfire/tick noise. Technicians may find DTC P0300 set or in history. Note: Inspect the camshaft for damage while the lifters are removed from the engine. If damage is found, replace the camshaft per SI. Cause This may be caused by one of the following conditions: • Active fuel management (AFM) lifter that is mechanically collapsed and/or stuck all of the time. • Internal locking pin damage in the lifter, due to oil aeration. • Lifter that has collapsed and is stuck in the lifter bore. • The engine may have a bent push rod. Copyright 2020 General Motors LLC. All Rights Reserved. If SI diagnosis does not isolate the cause of this concern, technicians should inspect for valve operation. If the valve(s) are not moving, replace the valve lifter oil manifold and affected bank of AFM lifters. Refer to Valve Lifter Oil Manifold Replacement and Valve Lifter Replacement in SI. If the lifter has spun the bore, the guides should also be replaced. Recommendation/Instructions There are two approved processes for removing the lifter when stuck in the bore. Page 2 May, 2020 Bulletin No.: 15-06-01-002J Parts Information Note: Only select the parts the coincide with the repair performed. 4250109 Causal Part Part Number N/A Description Qty 12660737 MANIFOLD ASM-VLV LFTR OIL (SERV KIT) (L83, L86, or LT1) 1 N/A 12660736 MANIFOLD ASM-VLV LFTR OIL (SERV KIT) (LT4) 1 N/A 12645725 LIFTER ASMVLV (AFM) 4 (per Bank) N/A 12659260 GASKET-CYL HD (6.2L) 1 N/A 12622325 GASKET-CYL HD (5.3L) 1 N/A 11546959 RIGHT SIDE CYLINDER HEAD BOLTS 10 N/A 11611976 LEFT SIDE CYLINDER HEAD BOLT 1 N/A 11546959 LEFT SIDE CYLINDER HEAD BOLTS 9 N/A 11546600 BOLT, EXH MANIF 5 (per Bank) N/A 12657093 GASKET-EXH MANIF 1 N/A 12626354 GASKET-INT MANIF 8 N/A Refer to EPC SEAL, EXH SYS N/A 12619787 GASKET-VLV RKR ARM CVR 1 N/A 12623308 GASKET-F/PMP BRKT 1 N/A 12618336 PIPE ASM-FUEL FEED INTER 1 N/A 12618337 PIPE ASM-FUEL FEED INTER 1 N/A 12668553 SEAL KIT-F/INJR (O RING) 2 1. Use vice grips with a slide hammer. 4921302 Note: Be sure NOT to pry on the sealing surface of the block, as shown in the illustration above. 2. Use vice grips with a small pry bar. Typically, one of the above approved processes will remove the lifter that is stuck in the bore. If not, the engine will need to be replaced. With the lifter removed, be sure to inspect the bore for any damage. Typically, the lifter bores will look good with no indication of damage. 1 Bulletin No.: 15-06-01-002J May, 2020 Warranty Information Vehicles repaired are covered under Powertrain warranty coverage and Emissions warranty coverage (Code E). Use the following labor operations, and claim should be submitted under the appropriate repair coverage limits. Reference the Applicable warranties section of Investigate Vehicle History (IVH) for coverage information. Page 3 Labor Operation Description Labor Time 9.4 hrs (Silverado, Sierra) 4080978* Valve Lifter Oil Manifold and Valve Lifter Left Side Replacement 14.8 hrs (CTS-V) 9.2 hrs (Escalade, Suburban, Tahoe, Yukon) 11.7 hrs (Corvette) 7.0 hrs (Camaro) 10.9 hrs (Silverado, Sierra) 4080988* Valve Lifter Oil Manifold and Valve Lifter Right Side Replacement 15.5 hrs (CTS-V) 9.3 hrs (Escalade, Suburban, Tahoe, Yukon) 11.4 hrs (Corvette) 9.0 hrs (Camaro) *This is a unique Labor Operation for bulletin use only. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION