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Lifter tick is a description of an engine noise, not proof that a lifter has failed. Causes can include low or aerated oil, incorrect viscosity, contamination or debris, restricted oil supply, a lifter that leaks down, or another valve-train component. The fix depends on locating the sound and diagnosing the specific engine; it may be as simple as correcting an oil issue or may require mechanical inspection and repair.
What causes lifter tick in an engine?
A lifter, also called a lash adjuster in some engines, is part of the valve train. A ticking sound near the top of the engine may come from a lifter, but similar mechanical noise can come from other valve-train parts or even accessories. Manufacturer service information identifies several possible causes, and the relevant procedure varies by engine.
Oil level, condition, or viscosity
Low oil, oil with the wrong viscosity for the engine, or poor-quality or contaminated oil can contribute to noise in some applications. For certain AFM V8 engines, GM also lists oil aeration and a low internal lifter reservoir level among possible causes. These are engine-specific findings, not a checklist that applies identically to every vehicle. GM bulletin 10-06-01-007E describes the covered engines and the conditions for its oil-and-filter correction.
Debris or restricted oil supply
Noise affecting several valve-train adjusters can point to an oil-feed problem rather than multiple failed lifters. GM preliminary service information describes debris—including sealer or degraded filter material—plugging a cylinder-head oil-feed orifice and reducing oil supply to the valve train. For that described condition, it calls for comparing lower-end and upper-end oil pressure. The GM preliminary information is not a universal diagnostic procedure; use the service information for the exact engine.
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- FITMENT: AFM lifter replacement kit fit for 2014-2021 Chevrolet Silverado 1500 5.3L V8, for 2015-2021 Chevrolet Suburban 5.3L V8, for 2015-2021 Chevrolet Tahoe 5.3L V8
- FITMENT: L83 dod kit fit for 2014-2021 GMC Sierra 1500 5.3L V8, for 2015-2021 GMC Yukon 5.3L V8, for 2015-2021 GMC Yukon XL 5.3L V8
- PACKAGE LIST: Engine rebuild kit includes camshaft, AFM lifters, NON AFM lifters, lifter guides trays with bolts, multi-layered steel (MLS) head gaskets, valve cover gaskets, valve stem seals, front camshaft seal, o-rings, other small gaskets, cylinder head bolts, balancer bolt, cam retainer plate with bolts
- PART NUMBER: 12619823, 12569256, 12499225, HS26744PT, ES73121, 12557840
- NOTE: Click "Make sure this fits" and enter the year, make, and engine model to confirm whether this part is compatible with your vehicle
Lifter leak-down or another valve-train problem
A lifter with excessive leak-down may tick, but a technician should verify the fault before replacing it. Depending on the engine, inspection may also need to consider rocker arms, pushrods, valve bridges, or other valve-train parts. Caterpillar’s mechanical-noise troubleshooting treats valve-train components and accessories as distinct possible sources, reinforcing why the sound alone cannot identify the failed part. Caterpillar engine troubleshooting guidance provides examples of that broader approach.
Can lifter tick be fixed?
Often, yes—but the appropriate repair depends on the cause and the vehicle. Correcting an oil-level or oil-condition problem may address noise when that is the diagnosed cause. A restricted oil passage may require finding and clearing or repairing the restriction. A confirmed faulty lifter may need replacement, while another source of mechanical noise calls for a different repair.
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- COMPATIBLE VEHICLES：Fit For 2015-2018 Escalade/Escalade ESV 6.2L V8; 2016-2018 Chevy Camaro LT1/SS 6.2L V8; 2014-2018 Chevrolet Corvette 6.2L V8; 2014-2018 Chevy Silverado 1500 6.2L V8;2019-2020 Chevy Suburban 6.2L V8;2018-2020 Chevy Tahoe 6.2L V8
- COMPATIBLE VEHICLES：Fit For 2014-2018 GMC Sierra 1500 6.2L V8;2015-2020 Yukon Denali 6.2L V8; 2019-2020 Yukon SLT 6.2L V8;2015-2020 Yukon XL Denali 6.2L V8;2019-2020 Yukon XL SLT 6.2L V8
- 【OEM Fit】Our camshaft and full cylinder engine gasket kits are rigorously tested and manufactured using advanced manufacturing processes to meet OE specifications to ensure a precise fit, and feature a precise OEM design for easy installation. Engine cylinder head gasket kits require no drilling or cutting, just disassemble the valve cover.
- 【High Quality】: Using advanced manufacturing technology to ensure its durability, not easy to break; and application-specific design, so that you can install it correctly, to provide you with the best experience
- 【1-Year Warranty & Hassle-Free Support】：Backed by a 1-year warranty, we ensure your satisfaction. Our support team is always ready to help if you have any questions or concerns. We’re committed to delivering top-quality products and exceptional customer service.
Do not assume an oil change, thicker oil, or an additive will fix every tick. GM’s oil-and-filter recommendation applies only to the specific AFM engines and conditions in bulletin 10-06-01-007E. The same bulletin directs technicians to other information for similar symptoms on non-AFM engines.
How to narrow down the cause
- Note when and where the noise occurs. Record whether it happens only at startup or continues, where it is loudest, and whether it began after an oil change or engine work. These clues help guide inspection, but do not establish the diagnosis.
- Check the oil against the engine’s requirements. Verify the level, condition, and specified viscosity using the owner’s manual or applicable service information. Do not apply another engine’s oil threshold or correction procedure to your vehicle.
- Locate the sound before naming a failed part. GM bulletin 10-06-01-003C says, “First, the location of the tick must be determined (exhaust or intake, front or rear engine bank).” It recommends a suitable listening device, such as chassis ears or a stethoscope, and inspection of suspect lifters. A listening tool helps localize a noise; it cannot confirm the cause by itself. See the official GM bulletin.
- Check oil supply and pressure when indicated. If noise appears to involve several adjusters, have the oil supply and pressure investigated using the exact engine’s procedure. The GM preliminary guidance for its described oil-feed restriction compares lower-end and upper-end pressure; it does not provide a generic pressure limit for all engines. The bulletin’s procedure is condition-specific.
- Inspect components and choose the repair from the findings. Follow model-specific service information to inspect suspected lifters and related parts. Escalate persistent or widespread noise, abnormal oil pressure, or evidence of mechanical damage to a qualified technician; pressure testing and valve-train inspection may require specialized tools or engine disassembly.
When does the pattern of the tick matter?
| What you observe | What it may help investigate | What it does not prove |
|---|---|---|
| Tick occurs only at startup | A symptom pattern addressed by some engine-specific service guidance. | That the lifter is faulty or that a particular repair applies. GM’s startup-tick bulletin is limited to specified AFM V8 engines. GM bulletin 10-06-01-007E |
| Tick persists or is widespread | Oil supply, measured pressure, and multiple valve-train components may warrant investigation. | That all noisy lifters have failed. GM preliminary information |
| Noise is localized to one area | Careful sound localization and inspection of the relevant area. | That the sound necessarily comes from a lifter. GM bulletin 10-06-01-003C |
| Noise followed maintenance or engine work | Oil condition and possible oil-feed or debris issues, guided by the specific engine’s service procedure. | A particular cause without inspection. GM preliminary information |
Why the exact engine matters
Service bulletins address defined engines, years, and symptoms; they are not universal repair recipes. Before a repair is selected, identify the vehicle’s year, make, model, and engine, then use current applicable service information. The cited manufacturer documents are technical guidance for specified conditions, and service information may be superseded. No universal oil-pressure limit, replacement procedure, failure rate, or repair cost follows from these sources.
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- Replacement OE Number - HS 26190 PT-2. Please confirm that the old part number matches the one listed before making a purchase
- Compatibility - The head gasket kit fits for 2005-2013 Chevy Silverado 1500 5.3L, 2005-2013 GMC Sierra 1500 5.3L, 2007-2014 Tahoe 5.3L, 2007-2014 Suburban 1500 5.3L, 2007-2013 Avalanche 5.3L, 2004-2014 Yukon XL 1500 5.3L, 2008-2014 Yukon 5.3L, 2007 Silverado 1500 Classic 5.3L, 2005-2009 Envoy 5.3L, 2007 Sierra 1500 Classic 5.3L, 2006-2008 Trailblazer 5.3L, 2005-2006 Envoy XL 5.3L, 2005-2006 Trailblazer EXT 5.3L, 2005-2007 Buick Rainier 5.3L, 2005-2009 Saab 9-7x 5.3L, 2005 Envoy XUV 5.3L, 2005-2006 Isuzu Ascender 5.3L
- Package Included - Multiple Layers Steel (MLS) Head Gaskets, Valve Cover Gaskets, Valve Stem Seals, Intake Manifold Gaskets (Aluminum), Exhaust Manifold Gaskets, Front Camshaft Seal, O-rings, Other Small Gaskets, 30 Cylinder Head Bolts (20 Long Bolts: 100mm, 10 Small Bolts: 45mm), 8 x AFM (Active Fuel Management) Hydraulic Roller Lifters / Engine Valve Adjusters, 8 x Non-AFM (Active Fuel Management) Hydraulic Roller Lifters / Engine Valve Adjusters, 4 x AFM Lifter Tray with Bolts
- Precise Hole Positioning - Automotive replacement head gasket sets is designed to OE standards with precise hole positioning, ensuring a perfect match with the original vehicle. You can complete the engine replacement or repair task yourself, saving time and money on a trip to the auto repair shop
- Durable - Made of high-quality multi-layer stainless steel and graphite, the engine cylinder gasket kit comes with excellent sealing and non-stick wear-resistant layers. It is designed to resist high pressure (up to 15bar), high temperature (up to 400℃), and corrosive fluids in the engine. With strong durability, it ensures long-term stable use and avoids unexpected breakdowns caused by gasket failure
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- FIT FOR CHEVY: AFM lifters replacement kit fit for Chevrolet Avalanche, Silverado 1500, Silverado 1500 Classic, Suburban, Suburban 1500, Tahoe, Trailblazer, Trailblazer EXT
- FIT FOR GMC: 5.3L AFM DOD kit fit for GMC Envoy XL, Envoy Xuv, Envoy, Sierra, Sierra 1500, Sierra 1500
- FIT FOR OTHER MODELS: Engine rebuild kit fit for Buick Rainier, for Isuzu Ascender, for Saab 9-7x
- PACKAGE INCLUDES: 8 x AFM hydraulic roller lifters, 8 x NON-AFM hydraulic roller lifters, 4 x lifter tray with bolts, head gaskets, valve cover gaskets, valve stem seals, intake & exhaust manifold gaskets, front camshaft seal, o-rings, other small gaskets, 30 x cylinder head bolts
- NOTE: Professional installation is recommended
Rank #3
- FITMENT: Compatible with 2009 Dodge Durango, 2009-2018 Dodge Ram 1500 5.7L Hemi V8; Compatible with Chrysler Aspen 2009 5.7L Hemi V8
- REPLACEMENT OE NUMBER: Camshaft# 53022263AF, 53022263AE; MDS Lifters# 53021726AC, 53021726AD, 53021726AE, 53021726AF, 53021726BB, 53021726BC, 5038785AD, 5038684AA, 5038785AA, 5038785AB, 5038785AC; Head Gasket Set# HS26423PT
- IMPROVED PERFORMANCE & RELIABILITY: Upgraded camshaft and lifters help eliminate common MDS-related issues like ticking noise, misfires, and lifter failure—ideal for both stock and modified engines
- HIGH-QUALITY MATERIALS: Manufactured to meet or exceed OEM standards, ensuring durability, proper oil flow, and resistance to high temperatures and pressure for long-lasting engine protection
- DIRECT REPLACEMENT, EASY INSTALLATION: Precision-engineered components fit directly into your vehicle’s engine without modifications. Perfect for DIY mechanics and professional installers alike
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