2006 Chevrolet Trailblazer EXT: fuel pump failure

Filed May 3, 2011 · Fuel system · 86,000 miles · IN

I started having problems with the fuel gauge swinging between full and empty then my check engine light came on. I've been told that I need an whole new fuel pump assembly and that the fuel tank will have to be dropped to replace it. I've been just setting the trip meter and filling it up every 250 miles because the fuel gauge now just stays lit on empty all the time. I don't have any problems with it running, starting, etc. So I'm assuming that it's just the sensor that is out. 2006 chevrolet trailblazer ext.

Filed Apr 30, 2011 · Fuel system · 50,000 miles · MI

Erratic fuel level readings on fuel gate. Once this started it was regular and would read full, empty, partially full regardless of actual fuel level. Replaced fuel pump module and level sensor. Old part is not still available. I am reporting this because I heard there is an investigation I had a 2006 chevrolet trailblazer extended 2wd we had no safety issues as we discovered it was not working and monitored miles driven to prevent running out of fuel.

Filed Mar 15, 2011 · Fuel system · IL

The fuel gauge on our 2006 chevy trailblazer has failed along with the check engine light coming on resulting from numerous codes. The entire fuel pump/filter/sending unit has to be replaced and the vehicle wont pass and inspection without it. Gm needs to recall this vehicle for this problem and refund owners who have spent money fixing the problem.

Filed Jan 7, 2011 · Fuel system · 64,500 miles · MA

Like thousands of other owners (since this happens to the gmc envoy too, so it's not just a chevy issue), one day the gas gauge works fine, the next it reads empty after filling it up. However, as a bonus, the friendly check engine light now comes on randomly to let me know the fuel gauge isn't working. I've had the codes read by two different places and this is the only error recorded. I now have to use the trip meter to "guess" when the truck needs filling up. Since it's going to cost me several hundred dollars I don't have to fix it, I'll just have to live with the inconvenience. In massachusetts, like many other states, they do an emissions test by plugging into the vehicle's computer. Well, since the check engine light has come on at some point, the computer says "not ready" and the vehicle fails the test. You have to wait until the light goes off and then drive about a week before the computer resets itself. However, without fail, the light always comes back on just before taking it back to get re-inspected, thus resetting the whole process. I've had this happen for the last 3 weeks in a row regardless of number of days/miles driven. Another week and another tank of gas wasted. So, in order to get the car to pass inspection, I either have to get real lucky with the check engine light or have the repair made. Since this issue prevents the vehicle from passing the state inspection, it should be considered a safety/emissions concern and all vehicles recalled to repair the combination fuel pump/sending unit. If gm doesn't consider this a concern and recall the vehicles for this repair, then they need to have the vehicles recalled to have the check engine light stop coming on so the vehicles can pass state inspections.

Filed Nov 29, 2010 · Fuel system · 72,000 miles · CA

Own a 2006 chevrolet trail blazer. Have run out of gas three times because the gas gauge does not read. The car is full of gas, but the gauge still reads empty. Have run out of gas on main roads and caused traffic jams. Will cost over $1000 to repair the fuel pump.

Filed Nov 12, 2010 · Fuel system · 70,000 miles · RI

The fuel gauge on our 2006 chevy trailblazer has failed along with the check engine light coming on resulting from numerous codes. The entire fuel pump/filter/sending unit has to be replaced (a $300 part) and the vehicle won't pass and inspection without it. Gm needs to recall this vehicle for this problem and refund owners who have spent money fixing the problem if they want to continue to stay in business.

Filed Oct 8, 2010 · Fuel system · 48,600 miles · PA

When I fill my gas tank the fuel gauge goes to empty and stays there, and sometimes goes erratic up and down so you never know how much fuel is in the tank. I am very afraid that by not knowing how much gas is in the tank, it may lead to over filling and causing a fire hazard at the pump by spewing gas all over to running out of gas in a passing lane of a highway possibly causing serious injury to myself or anyone else in my 2006 trailblazer, to injury or death to anyone in their car that may hit me or run into someone else to avoid me. This is an extremely dangerous situation that I see occurs to many, many others with my 2006 gm trailblazer similar models of different years!! At this time I have not gotten to a mechanic on this issue, but seeing on blogs it appears to be the sensing unit and fuel pump.

Filed Aug 31, 2009 · Fuel system · 48,600 miles · NJ

The fuel gauge sensor is malfunctioning in my 2006 chevy trailblazer. In reading on-line posts, this is a common problem that gm is ignoring. I already had to pay out of pocket for a rear differential that snapped about 7 months ago. Now I have to deal with a gas gauge that could potentially leave me out of gas or even cause problems with the fuel pump.

Filed Oct 20, 2008 · Fuel system · 38,000 miles · CA

After getting gas and getting back in truck, I noticed the fuel gauge read e. After driving 100 plus miles the gauge would slowly drift up to half, then fall back to e. Over time it got worse until the fuel gauge read e all the time. I finally convinced the dealership this was under ca emission warranty and they agreed to fix it. When they were doing the repair, they noticed the main connector for the fuel pump got hot and melted and was ready to short out. So they replaced the entire fuel pump assy. Also they noticed the clips that hold the fuel line to the tank were never installed by the manufacturer. So they installed those as well. The service dept knew about this problem right away, which tells me this has been a on going problem and they just do the repair under warranty to avoid any recalls. This is becoming a problem with more and more vehicles, and no one is willing to investigate this issue, unless the vehicle finally catches fire and someone loses their life before someone acts. If a fuel pump assy has a melted connector, there is something seriously wrong.