P0302 on JEEP WRANGLER — Cylinder 2 Misfire Detected

Q: "What does P0302 mean on a JEEP WRANGLER?"

"P0302 indicates: Cylinder 2 Misfire Detected. This is a ignition system code. 9 JEEP WRANGLER owners have reported this to NHTSA."

Q: "What are the most common causes of P0302 on JEEP WRANGLER?"

"Based on 9 NHTSA reports, the most commonly cited components are: Engine, Engine And Engine Cooling, Structure,Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0302 serious on my JEEP WRANGLER?"

"Of 9 NHTSA reports for this code on JEEP WRANGLER, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my JEEP WRANGLER shows P0302?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0302 Means on Your JEEP WRANGLER

P0302 is a diagnostic trouble code indicating: Cylinder 2 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

9 JEEP WRANGLER owners have reported this issue to NHTSA across model years 2005-2018. Most reports come from the 2012, 2016 model years. The most commonly reported component is Engine (77.8% of reports).

Real JEEP WRANGLER Owner Reports

Source: NHTSA Complaints Database

"On march 13, 2010, my 2005 jeep wrangler displayed a check engine light. the code was p0302. when cleared, the code did not return and the jeep ran normally until approximately march 26, when it went into a "limp mode" (rev limiter moved to 2500 rpm) after being revved to 4500 rpm."

— 2005 JEEP WRANGLER owner · ENGINE AND ENGINE COOLING · Filed 04/05/2010

"Check engine light came on, with a p0302 #2 cylinder misfire reading. after replacing consumable parts (spark plugs, engine coil) reset engine light, the code p0302 returned after 15-20 miles driving. this issue is a well know problem with the 3."

— 2012 JEEP WRANGLER owner · ENGINE · Filed 10/08/2019

"Check engine light illuminated, resulting in p0302 #2 cylinder misfire. after replacing consumable parts (spark plug, engine coil) reset engine light. code returned after 20 miles driving. dealer technicians indicate issue is #2 cylinder head needs replacement."

— 2012 JEEP WRANGLER owner · ENGINE · Filed 09/13/2019

"Really have 3 issues with this vehicle. the first is that the engine began to tick noticeably at around 5000 miles, sound definitely coming from #2 cylinder. was initially told not to worry, noise was normal, oddly it did not tick previously."

— 2012 JEEP WRANGLER owner · STRUCTURE,ENGINE · Filed 08/06/2012

"P0302 misfire cylinder 2. p0300, p0304 & p0306 jeep/dodge is very aware of this cylinder issue and has a service bulletin for several models. (journey, wrangler, 200/avenger, challenger, charger, grand caravan, durango and grand cherokee). and they will not recall this part."

— 2013 JEEP WRANGLER owner · ENGINE · Filed 11/12/2018

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'05

3

'12

1

'13

2

'16

1

'17

1

'18

Common Causes on JEEP WRANGLER

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 77.8%

ENGINE and ENGINE COOLING 11.1%

STRUCTURE,ENGINE 11.1%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0302 mean on a JEEP WRANGLER? ▾

P0302 indicates: Cylinder 2 Misfire Detected. This is a ignition system code. 9 JEEP WRANGLER owners have reported this to NHTSA.

What are the most common causes of P0302 on JEEP WRANGLER? ▾

Based on 9 NHTSA reports, the most commonly cited components are: Engine, Engine And Engine Cooling, Structure,Engine. These percentages are based on the component field in owner complaints.

Is P0302 serious on my JEEP WRANGLER? ▾

Of 9 NHTSA reports for this code on JEEP WRANGLER, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my JEEP WRANGLER shows P0302? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.