A Guide to the Engine Timing Set for the 2017-2023 Jeep Grand Cherokee
Understanding when and why you might need to replace the timing set in your 3.6L V6 or 5.7L Hemi engine.
- If you have an engine ticking noise (especially on the 3.6L V6), plan to replace the timing set during the lifter/rocker arm repair to save on future labor costs.
- This is a difficult, labor-intensive job. Do not use cheap, low-quality parts, as the cost of a second repair due to part failure will be extremely high.
- Symptoms like a rattling noise on startup, a P0016 code, or metal in the oil should be addressed immediately to prevent catastrophic engine failure.
- Always replace the water pump and consider replacing VVT components at the same time to maximize the value of the labor.
- No major recalls exist for timing chain failure on 2017-2023 3.6L or 5.7L Grand Cherokees, but several TSBs point to related repairs.
Is Your Grand Cherokee's Engine Making Noise?
For owners of the 2017-2023 Jeep Grand Cherokee, particularly those with the 3.6L Pentastar V6, an engine tick is a commonly discussed issue. While this sound is often caused by failing valve lifters or rocker arms, it's a major warning sign that requires attention. Since repairing these components requires significant engine disassembly 🎬 Watch: See how this common Pentastar ticking noise is fixed., it is the perfect and most cost-effective time to replace the entire engine timing set. Addressing it all at once saves you from paying for the same labor twice down the road.
Symptoms of a Failing Timing Set
A worn timing chain, tensioner, or guide will give you clear warning signs. Ignoring them can lead to severe engine failure. Look out for:
- Rattling Noise: A distinct rattling or clattering sound from the front of the engine, especially noticeable during a cold start, is a classic sign of a loose timing chain.
- Check Engine Light: A stretched timing chain can throw off the engine's correlation between the crankshaft and camshafts, triggering diagnostic trouble codes like P0016. 🎬 Learn more about diagnosing and fixing the P0016 engine code.
- Engine Misfires or Rough Idle: When timing is off, the engine may run poorly, misfire, or idle roughly as the combustion cycle is disrupted.
- Metal Shavings in Oil: During an oil change, discovering small metal particles in the used oil or filter is a serious red flag that internal engine parts, like the timing chain, are wearing out.
Known Issues for 3.6L Pentastar V6 Engines
A Technical Service Bulletin (TSB 09-009-23 REV. B) was issued for some 2022-2023 models with the 3.6L engine for an abnormal ticking noise caused by sticking hydraulic lash adjusters (lifters). Another TSB (09-012-22) addresses engine knock in 2018-2022 models from carbon buildup, a repair that requires removing the cylinder heads. In both cases, the required labor overlaps almost entirely with a timing set replacement. If your Jeep needs either of these repairs, replacing the timing set simultaneously is a smart investment.
Choosing the Right Aftermarket Timing Set
When facing a complex and labor-intensive repair, part quality is everything. While OEM Mopar parts are always a safe bet, reputable aftermarket brands offer a reliable alternative without the high dealership price tag.
Brand Quality Tiers:
- INA: INA is a major global manufacturer and a trusted OEM supplier for many automakers. Their components are known for precision and durability, making them an excellent choice that is often equivalent to original equipment quality.
- Melling: Melling is a well-respected American brand with a long history in oil pumps and valvetrain components. They provide dependable, standard replacement kits that meet or exceed OE specifications and are a trusted choice in the repair industry.
Pro Tip: The cost of labor for this job will be much higher than the cost of the parts. Do not try to save a few dollars on a cheap, unproven timing kit. The risk of premature failure and having to do the job all over again is not worth it. Stick with established brands like INA or Melling.
Cost of Replacing a Jeep Grand Cherokee Timing Set
The total cost is a combination of parts and extensive labor. Prices can vary based on your location and the specific engine in your Grand Cherokee.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Timing Set (INA, Melling) | $175 - $392 |
| New OEM (Mopar) Timing Set | $400 - $650+ |
| Shop Labor | $1,200 - $2,000+ |
| Total Estimated Cost | $1,400 - $2,400+ |
Frequently Asked Questions
Can I replace the timing set myself?
This is not recommended for DIY mechanics. The job requires specialized tools, extensive engine disassembly, and precise knowledge to set the timing correctly. Mistakes can lead to catastrophic engine damage. This repair is best left to an experienced, professional technician.
How often should the timing chain be replaced?
Unlike timing belts, timing chains are designed to last the life of the engine. However, they can wear out prematurely due to issues with oil pressure, tensioner failure, or guide wear. There is no set replacement interval; replacement is done when symptoms appear.
Should I replace the water pump and VVT solenoids at the same time?
Yes, absolutely. The water pump on the 3.6L Pentastar is driven by the timing chain, and on both the 3.6L and 5.7L engines, it must be removed for the service. Replacing it is a smart move. Similarly, accessing the VVT (Variable Valve Timing) solenoids and phasers is much easier with the front of the engine apart, so it's wise to replace them if you have high mileage or related trouble codes.
Does this apply to the 5.7L Hemi engine too?
Yes. While many of the specific TSBs relate to the 3.6L V6, the 5.7L Hemi also has a timing chain and can suffer from similar failures. The infamous "Hemi tick" is often related to lifters and the camshaft, and if you are having that service performed, you should also replace the timing chain, tensioner, and guides.
🎬 Watch: A technical guide to Hemi 5.7L timing chain installation.Helpful Videos
Technical Specifications
OEM Part Numbers: 5184352AF 05184352AF 68284905AA 68284904AA
Applies to 2017-2023 Jeep Grand Cherokee models equipped with the 3.6L Pentastar V6 or 5.7L Hemi V8 engines. Timing sets are engine-specific and not interchangeable. Kits should include chains, tensioners, guides, and sprockets.
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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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