2011–2021 Jeep Grand Cherokee 3.6L Pentastar V6 Engine Repair
This page is for the WK2 Grand Cherokee with the 3.6L Pentastar. It was also offered with 5.7L HEMI, 6.4L HEMI and 3.0L EcoDiesel engines, so confirm your engine first.
At a glance
Year-specific notes
- 2011 — 2011 is the first Pentastar Grand Cherokee year.
- 2014 — 2014 refresh added an 8-speed automatic.
How to confirm your engine
- The 8th VIN digit is "G" on 3.6L Pentastar models.
- V8 models have HEMI badging; the Pentastar does not.
Common 3.6L Pentastar V6 failure areas in the Grand Cherokee
Early cylinder head valve-seat problems.
Very common on the Pentastar.
Rocker arm and lifter wear.
Diagnostic considerations
- Misfire counters
- Compression and leak-down
- Oil cooler housing inspection
Repair, rebuild or replace?
Many problems — a lifter, a gasket, a sensor or ignition part — can be repaired without replacing the engine. When there is internal damage we compare repair, rebuild and replacement with you, based on what inspection shows and how long you plan to keep the vehicle.
Related repair topics
Left cylinder head valve-seat problems on early Pentastar engines.
Oil cooler / filter housing leaks on the Pentastar.
Misfire diagnosis on the Pentastar.
How we decide between repairing, rebuilding or replacing a 3.6L Pentastar with major internal damage.
Other Grand Cherokee generations with the 3.6L Pentastar V6
Request a quote for your 2011–2021 Jeep Grand Cherokee
Frequently asked questions
How do I know my Grand Cherokee has the 3.6L Pentastar V6?
The 8th VIN digit is "G" on 3.6L Pentastar models. V8 models have HEMI badging; the Pentastar does not.
Should I repair, rebuild or replace the engine?
Many problems — a lifter, a gasket, a sensor or ignition part — can be repaired without replacing the engine. When there is internal damage we compare repair, rebuild and replacement with you, based on what inspection shows and how long you plan to keep the vehicle.
Can you give a price over the phone?
We diagnose before quoting because engine repair scope varies widely. Call 602-725-6800 or request a quote to get started.