Jeep Wrangler Engine and Engine Cooling Problems

Source: NHTSA · Updated Oct 15, 2026 · 460 complaints analyzed

Owners have filed 460 complaints with NHTSA about engine and engine cooling problems on the Jeep Wrangler across 28 model years. The 1997 model year has the most (109). The words owners use most often: “exhaust manifold” (21% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Exhaust manifold: mentioned in 95 of 460 complaints (21%)
  • Catalytic converter: mentioned in 28 of 460 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical engine and engine cooling repair on the Jeep Wrangler at $1,350, and half of them between $850 and $3,100.

Based on 17 NHTSA complaints about this problem alone that state a repair bill or quote (2000–2011), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do engine and engine cooling problems happen?

Based on 228 complaints that reported the odometer reading.

Under 10k miles44 · 19%
10k–25k miles25 · 11%
25k–50k miles52 · 23%
50k–75k miles61 · 27%
75k–100k miles29 · 13%
100k–150k miles14 · 6%
150k+ miles3 · 1%

How serious are the reports?

Of 460 complaints, 8 mention a crash, 37 a fire, 5 an injury.

Jeep Wrangler engine and engine cooling complaints by model year

Peak: 1997, with 109 complaints
1995: 3219951997: 1091091998: 5319981999: 502000: 1520002001: 212002: 420022003: 62004: 920042005: 222006: 2020062007: 282008: 1120082009: 52010: 1520102011: 62012: 720122013: 42014: 920142015: 42016: 620162017: 12018: 420182019: 52020: 620202021: 42022: 220222023: 2

n = 460 complaints · Source: NHTSA

Model yearEngine and Engine Cooling complaintsShare of that yearMedian miles
2023 Wrangler21%22,357
2022 Wrangler20%3,000
2021 Wrangler40%36,000
2020 Wrangler61%60,000
2019 Wrangler51%61,000
2018 Wrangler40%81,000
2017 Wrangler10%99,000
2016 Wrangler61%67,959
2015 Wrangler41%10,890
2014 Wrangler91%55,000
2013 Wrangler41%51,000
2012 Wrangler71%1,000
2011 Wrangler61%6,000
2010 Wrangler152%19,000
2009 Wrangler51%24,000
2008 Wrangler111%35,000
2007 Wrangler285%27,675
2006 Wrangler203%34,500
2005 Wrangler223%40,000
2004 Wrangler95%400
2003 Wrangler66%15,100
2002 Wrangler44%105,000
2001 Wrangler2112%79,898
2000 Wrangler156%77,500
1999 Wrangler5023%56,500
1998 Wrangler5320%53,000
1997 Wrangler10927%73,000
1995 Wrangler3216%103,000

When owners reported it

Peak: 2001, with 44 complaints
1995: 219951996: 21997: 71998: 1719981999: 402000: 302001: 442001442002: 422003: 362004: 3020042005: 192006: 112007: 1920072008: 192009: 82010: 1520102011: 402012: 202013: 420132014: 62015: 12016: 120162017: 22019: 32020: 120202022: 72023: 62024: 620242025: 122026: 10

n = 460 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine and engine cooling for the Jeep Wrangler. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The contact owns a 2016 Jeep Wrangler. The contact stated that the factory oil filler adapter housing was made of plastic, which heated up, warped, and cracked over time. This structural failure caused engine oil to drip and spray across the entire underside of the vehicle, heavily coating the…

Received Oct 14, 2026 · NHTSA complaint 11771092

See attached document for complaint.

Received Sep 17, 2026 · NHTSA complaint 11765066

The contact owns a 2021 Jeep Wrangler. The contact stated that while operating the vehicle, the engine overheated, and the vehicle was driving sluggishly with the temperature gauge indicating that the engine was overheating. The vehicle was taken to an independent mechanic who determined that the…

Received Aug 20, 2026 · NHTSA complaint 11758236

The contact owns a 2020 Jeep Wrangler. While the contact’s daughter was driving at an undisclosed speed, the engine temperature gauge became extremely elevated. The vehicle was towed to an independent mechanic, where it was discovered that the coolant reservoir was empty and no leak was found…

Received Aug 17, 2026 · NHTSA complaint 11757452

The contact owned a 2020 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the engine temperature gauge was increasing. The engine overheating warning light illuminated, the vehicle was turned off, and the contact exited the vehicle to open the hood and immediately…

Received Jun 30, 2026 · NHTSA complaint 11747518
Jeep Wrangler
Jeep_Wrangler_Rubicon_(JL)_4xe at Retro Classics 2022. Representative photo; appearance varies by model year. Photo: Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all Jeep Wranglers have engine and engine cooling problems?

No. NHTSA has 460 owner complaints about engine and engine cooling for the Jeep Wrangler. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the Jeep Wrangler engine and engine cooling?

No recall currently lists engine and engine cooling for this vehicle.

How much does it cost to fix engine and engine cooling problems on the Jeep Wrangler?

Owners report a typical cost of $1,350 (half paid between $850 and $3,100), from 17 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about engine and engine cooling problems on the Jeep Wrangler?

The most frequent phrase is “exhaust manifold”, in 95 of 460 complaints, followed by “catalytic converter” (28).

Other Jeep Wrangler problems

See all Jeep Wrangler problems.