NHTSA — Fuel/Propulsion System Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
85,244 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.

2006 Isuzu Ascender fuel system problems

fuel system problem

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2006 Isuzu Ascender Owner Comments

problem #6

Sep 092016


  • 80,000 miles


Fuel gauge does not read correctly due to a bad sensor. Sensor is in fuel tank and estimate to fix is between $600 and $1000. Isuzu admits they have a defective part and would pay to replace if vehicle had less than 120000 miles and less than ten years in service. Vehicle has 80000 miles and ten years and eight months in service. I am original owner.

- Gardner, KS, USA

problem #5

Nov 032014


  • 78,000 miles
The contact owns a 2006 Isuzu Ascender. The contact stated that after refueling the fuel tank and starting the engine, the fuel gauge indicated that the fuel tank was empty and the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who replaced the fuel gauge meter. The vehicle was repaired but the failure recurred. The manufacturer was not notified of the failure. The failure mileage was 78,000.

- Port Arthur, FL, USA

problem #4

May 062014


  • 102,462 miles
The contact owns a 2006 Isuzu Ascender. The contact stated that the fuel gauge read empty while it was full. The vehicle was taken to an independent mechanic. The technician replaced the fuel pump module. The vehicle was repaired but the failure recurred. The contact stated that she received a notification for an unknown manufacturer recall directly related to the failure. The manufacturer was notified of the problem. The approximate failure mileage was 102,462.

- Salinas, CA, USA

problem #3

Aug 122012


  • 120,000 miles


The contact owns a 2006 Isuzu Ascender. The contact stated while driving 60 mph, the fuel gauge failed to properly track fuel in the vehicle and displayed as empty with the illumination of the check engine light. The vehicle was not repaired. The manufacturer was not notified. The approximate failure mileage was 120,000.

- Clemton , TN, USA

problem #2

Sep 192012

Ascender 6-cyl

  • 61,000 miles
I was driving at over 60 miles in a very busy highway and all of a sudden my Isuzu Ascender 2006 SUV slowed to 40 miles and it felt it was going to just stop. I freak out and try to give it gas and nothing happen. Finally I tried to move to the right side to avoid an accident and possible death, while doing this I felt it shifted and started taking speed again got of the highway and took the back roads to get home. I was a nervous wreck by the time I got to my house. The following day we took the car to a dealership and they could not find a problem even though the engine light has been on for over a month. I was told to bring the car when this happen again!! then my husband drove the car to the store one night and when he was almost getting back to the house the car without warning completely stop in the middle of the road. He had push it to the drive way.the following day the car started and he took it again to a different place to have it check and was told the same thing they need to check the car when it suddenly stops! I am frighten to drive this car again. Why is so difficult to find what the problem is. The diagnostic test that we have done is not finding the problem. What are my options!

- Hollywood , FL, USA

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problem #1

Mar 152012

Ascender 8-cyl

  • 70,000 miles
This vehicle is a rebadged GMC Envoy/Chevy trailblazer and like many of these vehicles, the fuel level sensor (fuel level sender) no longer works. Other vehicles using this platform (called 360) are the Buick ranier, Saab 9-7X, and Oldsmobile bravado. GM sold its interest in Isuzu and no longer seems to accept any responsibility for the vehicles it manufactured, in fact, the closest Isuzu service center is 80 miles away. All of the other vehicles in this platform have a service bulletin out where GM will agree to pay one-half the expense (done at one of their dealerships) of replacing the fuel level sensor. It is my understanding they are not offering to do so on the Isuzu Ascender. Since my fuel gauge does not work, I carefully track my mileage since my last fill-up to ensure I do not run out of fuel. Although I should have had more than one-half of a tank of gasoline, I was traveling through one of the busiest intersections in the metro-milwaukee area (mayfair road and North avenue) and when I stepped on the gas to accelerate, then engine quit. Fortunately I avoided an accident and had enough velocity to make it through the intersection and and was able to maneuver my way off of the state highway. The only explanation I can deduce for being out of fuel is that during the last fill-up, I was pumping using the auto switch on the gas nozzle which turns off automatically when the tank is full. Perhaps the switch turned off, not because of being full of fuel, but because the vapors triggered it. I am much more careful at this point, but it clearly could be a very dangerous situation if one does not carefully monitor their fuel use.

- Wauwatosa, WI, USA

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