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Data source: National Highway Traffic Safety Administration

  1. Home
  2. >Jeep
  3. >Wrangler
  4. >2012
  5. >Engine

2012 Jeep Wrangler Engine Problems

Engine complaints and recalls from NHTSA

Summary

The 2012 Jeep Wrangler has 105 NHTSA engine complaints and 0 engine-related recalls.

Problem Areas for the 2012 Jeep Wrangler

Steering
204
Powertrain
127
Electrical
124
Engine
105
Airbags
101
Other
68
Brakes
24
Structure
24
Speed Control
15
Suspension
9
Visibility
7
Lights
5
Seat Belts
3
Tires
3

105

Complaints

0

Recalls

2

Injuries Reported

Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026

All Engine Complaints

Date ↓ComponentSummary
Mar 26, 2026ENGINE,ENGINE AND ENGINE COOLINGThe contact owns a 2012 Jeep Wrangler. The contact stated that while driving at 20 MPH, the check en...
Oct 29, 2025ENGINEThe vehicle exhibits a persistent valvetrain ticking noise associated with the rocker/lifter/cam com...
Aug 10, 2025ENGINETiming chain and misfire bank 1 and bank 2 crank shaft and crank sensor issues.
Jul 1, 2025ENGINEThe vehicle exhibits a persistent valvetrain ticking noise associated with the rocker/lifter/cam com...
May 11, 2025ENGINEI am reporting a persistent and safety-relevant defect in my 2012 Jeep Wrangler with the 3.6L Pentas...
Jan 28, 2025ENGINEEngine spontaneously caught fire. It had been parked for hours before it happened. Everything under ...
Sep 7, 2023ENGINE6 days after an oil change, the temp gauge while driving went from cool to hot in under a mile and t...
Aug 24, 2023ENGINEJeep Wrangler 3.6 liter 90k miles lifter making loud noise. Seems you had a recall about this on th...
Jul 31, 2023ENGINEIn my 2012 Jeep I had to replace the engine and catalytic converters. The engine number 3 cylinder ...
Dec 5, 2022ENGINECAM SENSOR FAILED. CHECK ENGINE LIGHT AND TRACTION CONTROL LIGHT APPEARED. REPLACED AND SAME PROBLEM...
Apr 21, 2021ENGINEI was driving on the highway and the engine caught fire. I’ve been looking for an engine to rebuild ...
Mar 19, 2021ENGINEOIL COOLER CRACKED AND LEAKING ANTIFREEZE ALL OVER ENGINE AND UNDER FRAME. ANTIFREEZE IN THE OIL. ...
Feb 14, 2021ENGINEOIL COOLER BROKE AND STARTED LEAKING AFTER THE COLD TEMPERATURE IN OKLAHOMA ON 2/14/21
Feb 5, 2021ENGINETHE OIL COOLER FAILING, LEAKING. I HAVE JUST DISCOVERED THAT MY OIL COOLER IS LEAKING FROM A PUDDLE ...
Dec 26, 2020ENGINEOIL LEAKING OFF TOP OF ENGINE. CRACKED PLASTIC PART CAUSED OIL TO LEAK OUT ON ENGINE AND EXHAUST C...
Dec 23, 2020ENGINEOIL LEAKING FROM ENGINE. MECHANIC SAID COULD BE DANGEROUS AS IT WAS GETTING ON THE EXHAUST AND COULD...
Oct 1, 2020ENGINEWHILE DRIVING ENGINE LOOSES POWER AND VIBRATES EXCESSIVELY, ENGINE LIGHT FLASHES DURING THIS PROCESS...
Sep 12, 2020ENGINETHE LIFTERS (HEADERS) HAVE GONE BAD. INCREDIBLE TICKING NOISE FROM THE ENGINE IN DRIVE AND IDLE. AS ...
Jun 11, 2020ENGINEThe contact owns a 2012 Jeep Wrangler. The contact stated that the engine would misfire while drivin...
Apr 20, 2020ENGINETRANSMISSION FULL OF ANTIFREEZE. INTERNAL TRANSMISSION COOLER (IN RADIATOR) FAILED. CAUSED TRANSMISS...

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