A Guide to Engine Valve Lifter Replacement for the 2017-2024 Jeep Grand Cherokee
Hearing a ticking noise from your Grand Cherokee's engine? It could be a failing valve lifter.
- Do not ignore a ticking noise; it is a serious warning sign of potential engine damage.
- Plan to replace the lifters, rocker arms, and likely the camshafts as a set for a complete repair.
- The repair is labor-intensive and expensive; getting it done right the first time is crucial.
- Using high-quality synthetic oil at the correct intervals is critical for the longevity of these engine components.
Is Your Grand Cherokee Ticking? Understanding Lifter Failure
A rhythmic ticking noise that gets faster as you accelerate is a well-known issue for 2017-2024 Jeep Grand Cherokee owners. This sound, often called the "Pentastar Tick" or "Hemi Tick," is frequently caused by a failing valve lifter or its related component, the rocker arm. This problem is common in both the 3.6L V6 and the 5.7L/6.4L HEMI V8 engines. The failure often starts with the small needle bearings inside the rocker arm breaking down, or the lifter's internal roller seizing. This stops the part from rolling smoothly on the camshaft, causing the ticking sound and grinding away at the camshaft lobe.
Act Quickly to Avoid Engine Damage
Ignoring the ticking sound is a serious risk. A failed lifter can quickly destroy the camshaft lobe it touches. If left for too long, metal shavings from the damaged parts can circulate through the engine oil, potentially causing catastrophic damage to the entire engine. Addressing the noise as soon as it appears is critical to prevent a much more expensive repair.
Choosing the Right Aftermarket Lifters
When replacing valve lifters, you have options. While OEM Mopar parts are available from the dealer, quality aftermarket brands offer a reliable alternative, often at a better price. For this repair, it is strongly recommended to replace the lifters and the rocker arms as a set for the entire cylinder bank where the failure occurred.
Aftermarket Brand Quality
- Melling: Often considered a top-tier aftermarket choice, Melling is a well-respected brand for engine components. Many professional mechanics and DIYers use their lifters. However, some users have reported receiving faulty parts out of the box, so it's wise to have your mechanic inspect them before installation.
- Sealed Power: A subsidiary of Federal-Mogul, Sealed Power is another long-standing, reputable name in the engine parts industry. Their lifters are generally seen as a solid, reliable standard replacement that meets or exceeds OEM specifications.
- Crown Automotive: This brand specializes in Jeep parts. User reviews are mixed; some find their parts to be a good, affordable alternative to Mopar, while others have reported poor quality and out-of-box failures. Crown may be a budget-friendly option, but quality can be inconsistent.
Pro Tip: Replace the Camshaft at the Same Time
Due to the nature of lifter failure, the camshaft is almost always damaged. Even if the wear on the cam lobe looks minor, it's enough to cause noise and rapid failure of the new lifter. Ask your mechanic to carefully inspect all camshaft lobes on the affected bank. It is standard practice to replace the camshaft(s) along with the lifters and rockers to ensure a complete and lasting repair.
🎬 See this walkthrough of a rocker arm and camshaft replacement.Known Issues and TSBs
Chrysler (FCA/Stellantis) has issued Technical Service Bulletin (TSB) 09-009-23 REV. A for some 2022-2023 Jeep Grand Cherokee (WL) models with the 3.6L engine. This TSB addresses an abnormal ticking noise caused by sticking intake Hydraulic Lash Adjusters (HLAs), which are the valve lifters. While not a recall, this TSB acknowledges the issue and provides a factory-authorized repair procedure for technicians. No specific recalls have been issued for lifter failure in the 2017-2024 model years.
Cost to Replace Jeep Grand Cherokee Valve Lifters
| Item | Estimated Cost |
|---|---|
| Shop Labor | $1,200 - $2,500+ |
| New Aftermarket Lifters (Full Set) | $150 - $400 |
| New OEM Lifters (Full Set) | $300 - $600+ |
| Total Professional Repair | $1,500 - $3,500+ |
Costs are estimates and can vary based on your location, the specific engine (V6 vs. V8), and the extent of the damage (e.g., if camshafts also need replacement).
Frequently Asked Questions
Is the "Hemi Tick" or "Pentastar Tick" always a bad lifter?
Not always, but it's the most common cause. A similar ticking sound can also come from a cracked exhaust manifold or broken manifold bolts, which is also common on these engines. However, a lifter tick is often more metallic and sounds like it's coming from the top of the engine under the valve covers. 🎬 Watch: A professional mechanic explains and diagnoses the Hemi tick. A mechanic can help diagnose the exact source of the noise.
Can I replace just the one bad lifter?
It is not recommended. If one lifter has failed, the others have endured the same conditions and may also be close to failing. Best practice is to replace all lifters and rocker arms on the affected cylinder head (bank) at the same time to prevent having to do the job again in the near future.
Do I need to use special oil after the repair?
Always use a high-quality synthetic oil that meets the viscosity grade specified in your owner's manual (e.g., 5W-20 for the HEMI, 5W-30 for the Pentastar). Using the correct, high-quality oil and changing it regularly is the best way to prevent premature wear and future lifter issues.
What causes the lifters to fail?
The primary cause is an inherent design weakness in the valvetrain's rocker arms or lifters. This can be worsened by oil-related issues. Long oil change intervals, using low-quality oil, or low oil levels can lead to poor lubrication and accelerate wear on these components.
Helpful Videos
Technical Specifications
OEM Part Numbers: 5184296AH 5184332AA 5047895AA
This repair involves hydraulic roller lifters, also known as Hydraulic Lash Adjusters (HLAs). The 3.6L Pentastar V6 and 5.7L/6.4L HEMI V8 engines use different part numbers. It is critical to verify the correct part for your specific engine and year. See TSB 09-009-23 REV. A for related information on 2022-2023 models.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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