The Pentastar rocker failure carried over into the eTorque era — and on these engines, cam lobe damage shows up early. We replace the affected bank's rockers and the camshaft at your home, before the metal spreads.
If you hoped the JL-generation 3.6 left the old Pentastar tick behind, the bad news is it came along for the ride. The rocker arms still pivot on needle-bearing rollers, the needle bearings still collapse — left bank, disproportionately — and the dead roller still drags across its cam lobe like a file. The eTorque revision of this engine changed the oil circuit, and on these trucks lobe pitting is documented from around 40,000 miles — about 65,000 km — which is shockingly early for a modern engine to be eating its own camshaft.
The symptom pattern is unmistakable once you know it: a tick from the driver's side that's loudest at idle, a rough idle to go with it, and the computer setting P000A or P000B as the worn lobe makes camshaft response read sluggish. Because these are newer trucks, a lot of owners assume the noise must be something minor. On this engine, a persistent driver-side tick is never minor.
The repair mirrors the proven older-Pentastar fix: new camshaft, all twelve rockers on the affected bank — because the other eleven are identical parts on the identical clock — and fresh oil to flush the collapsed needle bearings out of circulation. The early-onset nature of this failure makes timing matter more, not less: catch it at the tick stage and it stays a one-day valvetrain job.
If your Jeep is doing any of these, this is the likely cause:
Pitting that starts at 65,000 km doesn't pause while you decide. Every idle hour drags the dead roller across the lobe, and every kilometre circulates collapsed needle-bearing steel through an oil system feeding the entire engine. The repair scope today — one cam, one bank of rockers — is the minimum this job will ever be. It only grows from here.
Yes — the cam comes out in place with the head on the engine, so it's a hoist-free, driveway-friendly job. Plan on a full day. The Wrangler's roomy engine bay actually works in our favour here.
It's hours of skilled valvetrain labour plus OEM parts at dealership markup, and trucks just out of warranty get no mercy on either. We confirm the diagnosis first — tick, codes, lobe condition — and then give you one flat quote covering the complete job, cam and full rocker bank included, before any work starts.
The eTorque-era engines changed the oil circuit, and lobe pitting on these is documented from around 40,000 miles — 65,000 km. It's not abuse and it's not bad luck with one part; it's a known pattern on this generation. Which is also why a persistent driver-side tick on a young JL or Gladiator deserves immediate attention, not a wait-and-see.
It would save money this month and cost you double within the year. The other rockers on that bank share the same design, mileage and oil history, and the cam lobe is already damaged. The full-bank repair exists because the partial repair fails — reliably.
Send it over for a free second opinion. I'll tell you straight what the job actually involves — and if their quote is fair, I'll tell you that too.
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