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NHTSA — Fuel System, Gasoline Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
62,230 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.

2005 Isuzu Ascender fuel system problems

fuel system problem

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2005 Isuzu Ascender Owner Comments

problem #14

Jan 062014

Ascender 6-cyl

  • 43,015 miles


Fuel gauge working erratically. Currently the gauge is past the full mark, even though the gas tank should half full.

- Miami, FL, USA

problem #13

Jan 012010

Ascender 6-cyl

  • 80,000 miles
The check engine light( thermostat), speedometer, fuel gauge and now the oil pressure gauge have stopped working or work sporadically and inaccurately. These problems are listed in order of failure and they started at approximately 85,000mi and the last was at 106,000 miles. If I had known this vehicle was made by GM, I would not have bought it. It will definitely be the last GM product in my household. I have had many and all but one had numerous problems. A footnote: A part of the gearshift linkage broke at approx. 95,000mi.

- Palm Harbor, FL, USA

problem #12

Mar 312010

Ascender 6-cyl

  • 95,000 miles
2005 Isuzu Ascender-fuel gauge not working, occurred at approximately 95,000 miles. Received notice from Isuzu stating they will replace fuel level sensor if the condition occurs within 10 years of the date vehicle was originally purchased or 120,000 at no charge, which ever occurs first. My Ascender has approx. 128,000 miles, seeing that there are a lot of complaints in regard to fuel gauge Isuzu should repair it regardless of mileage.

- Port St Lucie, FL, USA

problem #11

Sep 152012

Ascender 6-cyl

  • 122,000 miles


The contact owns a 2005 Isuzu Ascender. The contact stated the fuel gauge provided an inaccurate reading and fluctuated sporadically. The contact noticed the fuel warning light illuminated intermittently. There was a manufacturers recall for the fuel system. The manufacturer was made aware of the failure and stated the vehicle was over the mileage limit. The vehicle was not repaired. The approximate failure mileage was 122,000.

- Weaverville, NC, USA

problem #10

Apr 042012

Ascender 6-cyl

  • 114,000 miles
I have been having issues with my gas gauge for about 3 first I would fill up the tank or at least think it was full as the gauge would move all the way over to full then after I would stop pumping and turn on the car the gauge would go down to 3/4 tank and fluctuate back and forth between 3/4 and full over several days. Then yesterday I went and filled up and decided to not use the gauge as a measuring system and instead just let the pump go until it clicked off as it does when tank is full so I did this and the gauge went up to full then bounced back to empty and now my fuel low light is on and I cannot get any range reading on mileage for gas or anything. Also it should be noted that about that same 3 weeks ago my speedometer stopped working briefly starting off at 65 mph at rest then it gradually made its way back down to zero at rest and has since seemed to be ok.

- Lewis Center , OH, USA

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problem #9

Mar 302011


  • 72,000 miles
The first time I realized my gas gauge wasn't working, I was sitting at a traffic light. The gas hand read half full. I made the turn at the intersection and the car stopped running. At this point, I had no control over the steering wheel or anything. Traffic was heavy so I wrestled with the steering wheel to coast to the side of the road. Since then, other gauges in the instrument panel have stopped working. Also, my headlights work on bright only. I had the low beams changed and they still don't work. There seems to be a serious electrical issue with this vehicle. With the number of reports, there should be a recall to address these issues.

- Mcdonough, GA, USA

problem #8

Sep 142011


  • 90,000 miles


After checking on line, it appears that there are multiple owners of the Isuzu Ascender who have experienced failure of their fuel sending units. When I called my dealer to ask about it, he mentioned that the part is faulty and it would need to be repaired at a guess of $500. This part going bad on a customer while driving may cause an accident as the owner does not know how much fuel is left. At the same time, this trips the check engine light which may result in many stopping and calling for a tow. This part needs to be recalled due to the sheer number of complaints I have seen online.

- Sandy Hook, VA, USA

problem #7

Sep 092009

Ascender 6-cyl

  • miles
My gas gauge has failed several times. In fact now it does not work at all. I ran out of gas while driving down the expressway going 75 miles per hour while gauge was still reading half full. I just recently learned that GM was being investigated for the gas gauges of my year of car. My car was made by GM at that point. It is essentially a Chevy trailblazer with an Isuzu sticker on it. I am uncertain if there is a recall, or if one has been issued. I will say that three girls in my office all have similar SUVS with year 2005, and all of us have experienced this same problem. I just rescued one of them yesterday on the side of the road in the rain. I also know that this same person's car almost caused her to be in an accident as well, because her car stalled out in the middle of the expressway due to the gas gauge issue. This cannot be a coincidence, and is a severe safety issue. I have not been notified of a recall, but I would like to be included if there is one. If we are to bail out the auto dealers the least that they can do is provide us with safe vehicles to drive. Ones that we purchased and continue to pay on. My car is under 100,000 miles still, and this problem happened at roughly 60,000 miles and is ongoing.

- Dearborn, MI, USA

problem #6

Apr 042011


  • miles
I first discovered that the fuel gauge was defective approximately over a yr ago. There was a diagnostic performed with a recommendation for repairs. I also discovered that there was a similar problem with the 2006 model that may or may not have been recalled. This was too much of a coincidence as there was no recall issued in my 2005 model. Similar problem is occurring with the oil gauge which is now as erratic in functioning. My vehicle is well maintained and therefore, I consider this occurrences to be a manufacturer's error, which should obviously be labeled as a safety defect. I have been stranded on the road a few times as a result of the erratic functioning of my gas gauge. I suspect that it may lead to other issues or concerns. As a customer, I recommend that the Isuzu Ascender manufacturers do the right thing by advising consumers, and taking appropriate steps to correct these safety concerns.

- East Orange, NJ, USA

problem #5

Mar 102011


  • 72,000 miles
I am having trouble with my gas gauge on my 2005 Isuzu Ascender, I saw an article in my local paper about GM vehicles with the same problem, but it did not mention Isuzu. Since they where made at the same plant as other gms I wanted to report it to you. I am having the same issues as mentioned in the article, false readings very false readings!!

- Reynoldsburg, OH, USA

problem #4

Dec 122010


  • 28,000 miles


In December of 2010 my gas gage showed empty after filling up at gas station. (14 gallons of gas had been pumped) the gage jumped up and down for two days and then showed almost full. This has happened with every fill up every week since then. I never have a correct reading on the gage. There was no warning or oddities leading up to gage not working correctly. I fill my tank every week regardless of how much gas I have in the vehicle. I see now I have been doing the best thing for my safety since the Envoy is being investigated for the same issue.

- Glassport , PA, USA

problem #3

May 132005


  • miles
2005 Isuzu Ascender gas tank when filled register empty.

- Lynchburg, VA, USA

problem #2

Mar 102010


  • 64,000 miles
Gas gauge does not function properly on a 2005 Isuzu Ascender.

- Matawan, NJ, USA

problem #1

Sep 152009


  • 91,200 miles
2005 Isuzu Ascender. Filled up my tank and the fuel gauge went to empty with the orange/yellow light on. Fuel gauge does not work. There have been many complaints of this same problem with GM vehicles. There should be a recall on this.

- Prescott Valley, AZ, USA

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