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Fuel systemPart report

2018 Jeep Wrangler Fuel system Problems

Complaints
21about this part
Share
1%of 1,827 total for the year
Median mileage
7,500miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 21 complaints about the fuel system of the 2018 Jeep Wrangler, 1% of the 1,827 complaints for this model year. Where a mileage was given, the median is 7,500 miles. 1 of these say a crash was involved and 2 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Currently I have two issues I believe my 2018 Wrangler jl to be experiencing. The first is a constant clicking noise coming from the undercarriage of the vehicle, mainly in the rear. This occurs at slow speeds (10mph or less). The dealer replaced my rear axle but to no avail. The second issue is that I do not believe I am able to fill my fuel tank to the proper capacity. ( have a 4-door jl) from 'low mileage' warning to full, typically I get about 16 gallons.”

NHTSA complaint #11182811, filed 2019-02, 9,000 miles

“09/24/19 I noticed a huge stain under the right back side on my Jeep and could smell the strong odor of gas. I took it to the dealership I purchased it from and they checked it the whole day and stated nothing was showing of a gas leak or could smell the gas. Brought my vehicle home unsure because I had video of how you could hear the fuel gurgling from the tank. Today 11/09/19 again the fuel is leaking I have video showing how the fuel is going everywhere while the truck is parked and had been parked for 24 hours. Something needs to be done. …”

NHTSA complaint #11279195, filed 2019-11, 5,200 miles

“Car leaking fuel the car turned of while approaching a stop light (~15mph). I put it park and started it again, no problem. As I approached the next stop light, it turned off again. This time it took cranked for about 4 seconds before starting. I headed towards the nearest parking lot and the car started hesitating. When I pulled in I found that it was leaking gas from what appeared to be above the gas tank. It puddled up behind the passenger rear of the vehicle. Got it towed to the dealer from there. - no gas leaked where it was previously parked for over 6 hours. …”

NHTSA complaint #11104841, filed 2018-06, 3,000 miles

“I have had my vehicle since july 5th, 2018. On august 26th, I went to leave my home and before I started the vehicle, I noticed Jeep was leaking gas out of the rear right portion of the vehicle when sitting in my driveway. It was sitting in my parked in my driveway at the time I observed the leak. Also saw gas streaming when I removed gas cap and looked into tank. Had vehicle towed to Jeep dealer. Consumer stated yes. It just got repaired. It was determined the fuel tank was not taking fuel properly and had filled the evap canister and all appears to be ok after driving for a few days. …”

NHTSA complaint #11129662, filed 2018-09, 1,550 miles

“While driving the Jeep the digital fuel level gauge went from half tank to empty. Refueled the tank and the gauge remained on empty. A week later the fuel gauge went back up to full but when you turn the car off and back on, it return to fuel level low. It has been like this for one month with frequent refill of fuel. Currently serving in the military overseas in italy with my us spec Jeep.”

NHTSA complaint #11302953, filed 2020-01, 17,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2026325%
20252433%
202419526%
20236718%
20227318%
202114215%
2020437%
2019101%
2018211%
2017155%
2016143%
2015153%
2014193%
2013335%
2012455%
20119920%
201022833%
20098022%
200814016%
200711420%
200647966%
200544869%
2004126%
20031111%
200244%
200174%
2000114%
199963%
1998208%
19975814%
1995136%
19943825%
19933230%
19922532%
19911824%
19902025%
19891931%
19881632%
19871437%

Other parts of the 2018 Jeep Wrangler

Steering
1,117 complaints
Suspension
343 complaints
Electrical system
268 complaints
Other or unknown
213 complaints
Transmission and drivetrain
177 complaints
Engine
99 complaints
Body and structure
97 complaints
Brakes
68 complaints
Wheels
61 complaints
Electronic stability control
46 complaints
Visibility (wipers, defrost, mirrors)
43 complaints
Vehicle speed control
24 complaints

← All problems reported for the 2018 Jeep Wrangler

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology