2005 Isuzu Ascender: check engine light

Filed Jan 1, 2014 · Electrical, Fuel system · 80,000 miles · FL

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.

Filed Sep 10, 2013 · Electrical · 90,000 miles · SC

Tl* the contact owns a 2005 isuzu ascender. The contact stated that the vehicle failed to start. In addition, the fuel gauge would not operate and the check engine warning light was illuminated. The vehicle was not taken to the dealer for a diagnostic test. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 90,000. The current mileage was 110,000.

Filed Dec 1, 2012 · Electrical, Fuel system · 68,000 miles · IL

The isuzu ascender 2005 has had a problem with the fuel gauge, speedometer and oil gauge. All are reading erratically. Fill the tank the gauge reads that is needs gas. The oil gauge is completely as have changed out the fuel gauge inside the fuel tank for about $750 that worked for about a year and now the problem is back again. Also the check engine light is always on. The mechanic says this is an error and just resets it after checking the on board system.

Filed Jul 12, 2012 · Electrical · 120,000 miles · TX

I've been having the same issues with speedometer and gas gauge. I bought the vehicle used and the engine light came on a day after I bought it. The speedometer stopped working as I was driving it off the lot. When back to the dealer and they fixed and it worked for a few months. I have noticed that the speedometer goes haywire when it drops below a certain temperature and the gas gauge when it rains or it's humid. I know it seems ridiculous but I had no problems during the summer months with either up until now rainy season. It has only come off once, when I replaced the battery but it came back on a day later. Hope someone figures something out!

Filed Apr 30, 2012 · Engine · 45,000 miles · FL

Check engine light is on.. Test indicates it is the engine thermostat. Ac/heater fan will not work on high speed..

Filed Feb 7, 2012 · Fuel system · 90,000 miles · VA

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.

Filed Jul 11, 2011 · Fuel system · 85,000 miles · KS

My 2005 isuszu ascender had ; still has a problem associated with the fuel line and pump. I had about 75,000 miles on the car. We had been driving about 900 miles and my water pump went out, so we stopped in a goodyear/ firestone shop in rural mo. I had the water pump repaired. Fifteen minutes after the repair was done I stopped to refuel the car. After the pump shut off and I turned on the vehicle, my fuel gage read empty and was beeping on "e" as we drove out of gas station. After driving about 20 miles it registered as full. This continued for several fill ups. We drive far distances here in the midwest, I needed to know how much gas is in my tank at all times. I had fuel pump replaced, but now engine light stays on. My mechanic says that I need to have a pressure test at an isuzu service center there is a leak of some type, related to my fuel line. Each time I have an oil change I have to have the codes read and the car reset to make engine light go off. I have my mechanic confirm that the code is due to the fuel line pressue and then I have him remove turn off light. It will usually stay off for a few days. The repair to the fuel pump was some what complicated. I would smell strong gas fumes after the original repair. One day as I was pumping gas, gas started spaying from under my vehicle. I went back to my mechanic and at no charge there was some connection that he had to tighten.

Filed Sep 29, 2006 · Acceleration · 1,239 miles · HI

Dt*: the contact stated while driving various speeds with pressure applied to the gas pedal after the vehicle was recently decelerated or stopped, the RPM gauge spiked really high then slammed down. The engine light illuminated and immediately turned off. The vehicle was taken to 3 separate dealers who determined that all parameters were okay based on the scan test. The last dealer installed a flight recorder to record any irregularities. The contact was advised to depress a button when there were any irregularities present. None of the service dealers could determine the problem with the vehicle. The manufacturer was notified twice but no resolution was provided other than to call the better business auto line.

Filed Nov 22, 2005 · Acceleration · 333 miles · TN

Dt: the contact states two engine lights come on and the vehicle immediately lost power, but did not stall. When she tried to depress the accelerator pedal nothing happened. The contact pulled the vehicle over and had it towed to the dealership. This happened four separate times. The dealership was unable to diagnose the problem. They have replaced the throttle body and the appropriate sensor. The vehicle is currently at the dealership for this problem.