LOOSE FUEL CAP MESSAGE OR MALFUNCTION INDICATOR LAMP ILLUMINATION FOR DIAGNOSTIC TROUBLE CODE P0457 - EVAP SYSTEM - LOOSE FUEL CAP.
full bulletin at NHTSA ↗2006 Jeep Wrangler fuel system problems
moderate 360 complaints filed with NHTSA · avg repair $1,200 · see fuel system across all vehicles →
Failure mileage
Complaints
360
Recalls
0
Avg fix
$1,200
11injuries
When does it fail?
Of the 360 fuel system complaints filed for the 2006 Jeep Wrangler, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
How fast does it fail?
Cumulative share of the 11 mileage-bearing fuel system complaints filed against the 2006 Jeep Wrangler by each odometer reading. Median failure: 43,750 mi.
10% have failed by24,567 mi
Half the fleet by43,750 mi
90% have failed by66,000 mi
Curve based on owner-reported odometer mileage at the time of complaint. Reflects when owners filed, not when symptoms first appeared. Maintenance habits and driving conditions shift the curve.
What stands out
Of the 10 model years of Jeep Wrangler we track for fuel system problems, this one carries the most owner complaints on file — 360.
Fuel system accounts for 49% of every owner complaint on file for this vehicle — the dominant problem area across 12 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2006 Jeep Wrangler has a serious fuel-tank filler problem that owners describe consistently across all 50 complaints: gasoline surges back out of the filler neck when the pump nozzle clicks off, spraying the operator's face, hands, and clothing with fuel. This happens nearly every fill-up once the problem develops, typically starting between 30K and 50K miles but occurring from the first fill-up for some owners.
Owners report fuel spraying 1–3 feet from the vehicle, with spills of 1–2 quarts per fill-up onto the ground and vehicle exterior. The problem occurs at multiple gas stations, across different states, and regardless of pump type or nozzle position. Slowing the fill rate only sometimes helps; it never fully stops the overflow once the failure is established.
Dealerships confirmed this is a "common problem" among 1997–present Wranglers and recommended full fuel tank replacement at $700–$1200, though they acknowledged even new tanks may not solve it permanently since the design is unchanged. Chrysler issued a recall for 2007+ models but refused to recall 2006 and older vehicles, citing ethanol-fuel as a cause of internal check-valve swelling. Owners cite this as a safety and environmental hazard with no manufacturer accountability.
Same Jeep Wrangler fuel system reports on nearby years: 2005 · 2007 · 2008 · 2009
Failure modes owners describe
Fuel Tank Check Valve / Rollover Valve Malfunction
The internal check valve or rollover valve in the fuel tank sticks or fails, preventing proper shutoff of fuel flow when the pump nozzle triggers the automatic stop. This causes fuel to back up through the filler neck under pressure.
When: Occurs progressively, often starting between 30K–50K miles; becomes consistent over time; some owners report onset shortly after purchase or first fill-up
Symptoms owners cite: Fuel surges back out of filler neck when pump nozzle auto-stops or clicks off; Fuel sprays violently from fill opening, sometimes 1–3 feet from vehicle; Overflow happens every fill-up once failure progresses; Gasoline splashes onto operator's face, hands, clothing, and vehicle exterior; Large spills (up to 1–2 quarts per fill-up) onto ground and pavement; Manual filling at very slow rate sometimes reduces but does not eliminate problem; Problem occurs at multiple gas stations, different states, and regardless of pump type
Repairs/costs cited: Owners report dealership recommends full fuel tank replacement at $700–$1200. Some owners cite replacement with aftermarket parts (e.g., Chevy Trailblazer filler tube) as a workaround. Dealership acknowledged the problem is 'common' but offered no warranty coverage for 2006 models once warranty expired. Manufacturer offered to cover half repair costs in at least one case.
Recalls/TSBs owners mention: Chrysler aware of issue; issued recall/extended warranty for 2007+ Wrangler (JK) models but refused to recall 2006 and older (TJ) models. One dealer statement: 'Yes we know there is a problem but there is no way to fix it. I would suggest just not filling the tank all the way up.' Chrysler stated cause is ethanol in gasoline causing the check valve to swell or stick.
Improper Fuel Tank Venting
The fuel tank does not vent properly, preventing the pump nozzle's automatic shut-off mechanism from registering that the tank is full. This causes the pump to continue pumping beyond tank capacity, forcing fuel back out through the filler neck.
When: Occurs during refueling; affects ability to fill tank completely at any time
Symptoms owners cite: Pump nozzle fails to click off or register full condition; Automatic shut-off feature does not work correctly; Gas continues to flow into tank past normal full level; Fuel overflows even when nozzle is not held at full flow rate
Repairs/costs cited: One owner reported dealership suggested checking fuel filler pipe for obstructions and cleaning the vapor canister; neither resolved the issue. Owners note that replacing the tank does not guarantee resolution if internal design is unchanged.
Recalls/TSBs owners mention: No specific recall issued for 2006 TJ models. Dealership described as 'common problem among 1997-present Wranglers.' Manufacturer takes no corrective action for pre-2007 vehicles.
Synthesized from 360 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 14 most recent
Upon filling the gas tank there is consistent fuel spill back. Fuel spews from the filler opening. Second owner, not sure if this has been occurring prior to date and mileage above. *kb
During every fill up of gas, the nozzle does not shut down in time and fuel shoots out of the fill tube all over anyone filling the tank and onto the ground. There are hundreds of people complaining of the same thing, all with Jeep wranglers. *tr
Overspill during refueling, every time. Fuel does not stop automatically and overflows (spews) out onto side of vehicle, onto pavement and also onto driver's clothes. This has happened at numerous different gas stations and pumps. This presents a very dangerous situation and could result in serious injury or death if the fuel is ignited. *kb
1. Failure apparent since beginning of ownership. 2. Fuel spills out of gas tank upon filling the gas tank in a normal fashion. Failure occurs every time gas tank is filled completely. Gas spills out of tank, over the outside of the vehicle, and on to the ground at the gas pump. 3. No attempts to correct failure at this point. *tr
Everytime I fill my 2006 Jeep wrangler with fuel it will click the auto shutoff on the pump and then puke fuel all over the side of the car and the ground. Approx. A quart if not careful. *tr
2006 Jeep wrangler unlimited rubicon. Every time I fill it up with gas, a significant amount of gas shoots out before the pump shuts off. This happens at every pump I've tried. Going slow at the end doesn't solve the problem. Enough fuel comes out that I usually have to mop it up off the ground. This is a dangerous fire hazard. *tr
I'm writing the NHTSA to provide my experience with a gas overflow issue on my 2006 Jeep unlimited. Without fail, at each fill-up, the gas nozzle will allow gas to backflow out of the filler neck, past the vapor recovery system and spray outward and drain down the car. In most cases, as much as 1.5-2 quarts of gasoline is spewing out of the filler neck. In almost all cases, employees from the…
When filling the gas tank the gas overflows in a spray or stream without tripping the pump shutoff. It also at times will only fill when filling extremely slow. *tr
Fuel spilling at every fill up, from reading on the internet it seems to be a very common problem with Jeep wranglers. It happens at every fuel station and doesn't matter if the nozzle is half in or totally in. *tr
While filling up my 2006 Jeep wrangler (tj), gas has come shooting out of the inlet for the gas pump nozzle. I am *not* attempting to 'top off' my fuel tank, this occurs in the normal process of filling my tank up. Today's incident (12/23/2009) is the third incident in less than two months. Previously, I had thought that perhaps it was me exceeding the fill limit of the tank ('topping off')…
Had fuel system trouble with your 2006 Jeep Wrangler?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the fuel system problem on the 2006 Jeep Wrangler?
It's a documented issue but not catastrophic. 360 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Across the 293 complaints that reported odometer mileage, most fuel system failures cluster between 24,000 and 50,000 miles, with the median around 36,789. A quarter of owners report trouble before 24,000; a quarter make it past 50,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Jeep/Wrangler.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.