Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Fuel System, Gasoline Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,057 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Isuzu Ascender fuel system problems

fuel system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Isuzu Ascender:

Unsubscribe any time. We don't sell/share your email.

2004 Isuzu Ascender Owner Comments

problem #8

Mar 042013


  • miles


I have a 2004 Isuzu Ascender. My check engine light came on so I took it to a dealer to have it checked out. I was told that the car had a fuel thank inlet fracture. A service bulletin was released but no recall. I bought this car brand new, it will cost me $2178.33 +tax to have it repaired.after doing some research I have found other owners with the same problem. I think that something should B done about this. I contacted an authorized dealer and my car is not in the recall models. I think that this a manufacture' problem and it should be taken care of beofre something serious happens

- Tupelo, MS, USA

problem #7

Dec 092011


  • 107,000 miles
The contact owns a 2004 Isuzu Ascender. The contact stated that the check engine warning light illuminated and the vehicle would shake abnormally when driving various speeds. The vehicle was taken to the dealer where the vehicle was diagnosed and the contact was advised that the fuel tank was fractured and needed to be replaced. The vehicle was repaired. The manufacturer was not contacted. The failure and the current mileages were approximately 107,000.

- Norfolk, VA, USA

problem #6

Oct 012011


  • 80,000 miles
The contact owns a 2004 Isuzu Ascender. The contact stated that the check engine light was illuminated and the vehicle was taken to the dealer. After diagnosis they advised her that the fuel tank was fractured but there was no sign of corrosion. The vehicle was not repaired. The manufacturer was contacted and they offered no assistance. The failure mileage was approximately 80,000.

- West Palm Beach, FL, USA

problem #5

Aug 032011

Ascender 6-cyl

  • 73,000 miles


Fuel leak from gas tank, filler neck meets plastic inlet to tank. Plastic inlet from fuel tank leaks fuel and does not holding pressure causing mls P0442, P0455. Cannot fill tank to capacity, tank will leak on incline or on acceleration.

- El Paso, TX, USA

problem #4

Oct 012009


  • 80,000 miles
Fuel tank leaks spilling fuel at all times. Have been told by mechanic that the fuel filler neck was ultrasonically welded to the fuel tank and that the seam did not hold. He reported seeing this on several vehicles, different make, same body style.

- Nashville, TN, USA

Search for these popular complaint phrases...

problem #3

May 012009


  • 0 miles
Strong gasoline odor inside and outside of vehicle.

- Pembroke Pines, FL, USA

problem #2

Mar 122009


  • 80,601 miles
My 2004 Isuzu Ascender required the fuel tank be replaced as there was a cracked weld on the fuel neck. Isuzu did have a service bulletin on this year model, but yet I was told my vehicle did not qualify or met the criteria.

- El Paso , TX, USA

problem #1

Jan 052009


  • 75,853 miles
My check engine light came on and I took it in to have a diagnostic check and I was informed that my 2004 Isuzu Ascender had a crack in the gas tank due to faulty equipment. There are gas fumes in the car as well. I contacted the manufacturer who states that there are bulletins for this problem for the 2003 and 2004 Ascenders however my vehicle will not be covered.

- Tucson, AZ, USA

Not what you are looking for?