NHTSA Complaint #10490131 — 2012 JEEP WRANGLER ENGINE

Complaint Details

ODI Number	10490131
Vehicle	2012 JEEP WRANGLER
Component	ENGINE
Date of Incident	November 2, 2012
Date Filed	December 26, 2012
Mileage	15,400 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NY

Consumer Description

VEHICLE IS CURRENTLY (DEC 2012) AT DEALER HAVING HEADS/VALVES REPLACED (10TH DAY AFTER WAITING 10 DAYS FOR PARTS), ORIGINAL REPORT 9 NOV: IDLING ENGINE CONTINUES TO BE VERY ROUGH, MUCH ROUGHER THAN WHEN REPORTED TO DEALER ON NOVEMBER 9 2012, DEALER DID PCM REFLASH/UPDATE AS STALLING MANEUVER, AFTER WHICH PROBLEM WORSENED AND MIL CAME ON VEHICLE IS VIBRATING ABNORMALLY WHEN STOPPED AND IDLING, ALL PASSENGERS FEEL THE CAR SHAKING, ALMOST STALLS AT TIMES IDLING ENGINE CHANGES SPEEDS AND SOUND INTERMITTENTLY AND IS RUNNING VERY LOUD ENGINE ALWAYS HAD SLIGHT TICKING ON LEFT SIDE SINCE NEW BUT WAS NEVER LOUD OR ROUGH LOSS OF POWER FELT AT ACCELERATION AT TOP OF GEARS (MANUAL) WHITE EXHAUST EMISSIONS AFTER COLD START, THIS NEVER HAPPENED BEFORE ENGINE LIGHT MIL IS ON AND OFF REPEATEDLY - READS P0306 CYLINDER 6 MISFIRE GAS MILEAGE SEVERELY AFFECTED (APPROX 25% WORSE), CAR NOW HAS 18K MILES; DEALER SAID IT WAS OK TO DRIVE IT - HOWEVER DRIVING IT MAY CAUSE OTHER DAMAGE THIS IS 3RD VISIT TO DEALER - WHEN PROBLEM FIRST REPORTED DEALER SERVICE DEPT SAID I MIGHT HAVE PUT WATER IN THE GAS. I HAVE HAD TO PUSH THE DEALER TO FIX THIS AND THE GENERAL ATTITUDE HAS BEEN ADVERSARIAL AND NOT HELPFUL. *TR

Related Complaints for the 2012 JEEP WRANGLER

Other ENGINE Complaints

#11696485 — October 29, 2025 — The vehicle exhibits a persistent valvetrain ticking noise associated with the rocker/lifter/cam components of the 3....

#11690582 — September 30, 2025 — The vehicle exhibits a persistent valvetrain ticking noise associated with the rocker/lifter/cam components of the 3....

#11684159 — August 31, 2025 — Timing chain and misfire bank 1 and bank 2 crank shaft and crank sensor issues.

#11665284 — June 6, 2025 — I am reporting a persistent and safety-relevant defect in my 2012 Jeep Wrangler with the 3.6L Pentastar engine. The v...

#11639631 — January 30, 2025 — Engine spontaneously caught fire. It had been parked for hours before it happened. Everything under the hood was totaled

Recent Complaints for the 2012 JEEP WRANGLER

#11719699 — SERVICE BRAKES — February 22, 2026 — ABS module failure C2200. Repair parts not available.

#11718585 — SERVICE BRAKES — February 17, 2026 — ABS system faile, There is no replacement part to correct the fault, and there is no replacement date, code C2200

#11718094 — ELECTRICAL SYSTEM — February 15, 2026 — The dash displayed multiple warning ICONS and I carried the Jeep to a mechanic. They discovered that the ABS Module, ...

#11718094 — SERVICE BRAKES — February 15, 2026 — The dash displayed multiple warning ICONS and I carried the Jeep to a mechanic. They discovered that the ABS Module, ...

#11714990 — SERVICE BRAKES — February 2, 2026 — ABS brake module (Part # 68145835AE) is a known defect on Jeep Wranglers 2012-2014. This part becomes defective, elim...