2006 Chevrolet Trailblazer EXT: sudden loss of power

Filed May 10, 2014 · Fuel system · 90,000 miles · WI

I was driving the truck and the fuel gauge was reading that there was gas in the tank. The vehicle died causing loss of power steering and power brakes. I was able to pull the truck to the side of the road with great effort. Had my wife or teenage daughter been driving the outcome might had been very different.after filling the gas tank the gauge went to e and never worked properly afterwards.

Filed Mar 29, 2011 · Fuel system · 51,000 miles · DC

Erratic fuel gauge for couple of days and abrupt engine power loss, fuel gauge stayed below empty mark even after full fill up.

Filed Sep 16, 2010 · Electrical · 70,000 miles · KY

As of today, my reduced engine power light came on and there appears to be an issue with the electronic throttle control system. When I turned the car off, and then restarted it, the problem went away, but then a few minutes later, came on again, and the car would not accelerate. This is a major safety concern as the problem occurred crossing an intersection. Luckily there was no oncoming traffic, or it could have been very serious.

Filed Jul 20, 2009 · Fuel system · 65,000 miles · MI

2006 chevrolet trailblazer 65,000 miles, lost power on the interstate at 70 MPH resulting in a near crash. Gas gage read 1/2 tank when leaving home, car stalled after 5 miles. Tried to re-start engine and the low fuel warning light and chime came on. Vehicle would not re-start. Family member brought a can of gas for the vehicle at it ran fine. Since that time the gas gage has been more sporadic. If I fill the tank, it may read full, it may read empty. It sometimes reads full, then drops to 1/2 then to e in less than 5 miles. Called chevrolet dealer where I bought it. The service department stated it was the fuel sending unit, without ever seeing the vehicle. Service manager stated is a common problem with these vehicle.

Filed Apr 23, 2009 · Engine, Fuel system · 46,825 miles · CA

2006 trailblazer ext, 12/08 exiting freeway onto 50 MPH roadway and accelerating from stop sign at top of ramp, when engine lost power and slowed to a stop, with engine running and check engine light on, all at once. Almost broadsided on drivers door by approaching traffic.. Onstar said in was a throttle valve body issue and had it towed to dealer for night drop off. Next morning no code found, but they cleaned the throttle body valve assembly and linkage. No charge for diagnostics or cleaning! 4/21/09, 3000 miles later, the check engine light comes on with vehicle operating normally. Onstar says get it to a dealer in one day, its the throttle valve body and linkage. $100 for diagnosis already sent to dealer by onstar. Dealer says the electronic radiator fan clutch is not engaging and engine runs cold, technician said no, it runs hot, neither of which was occurring. Dealer says they have a history code for throttle valve and linkage, so its obviously carboned up and though its not listed anywhere in owners manual for such service, they say its a maintaining issue, don't void your warranty. If you don't let us do it for $149, it's $52 for reading the history code. They remove the air cleaner duct and they try to sell me a bill of goods, I.e. Look at the carbon build up, which is nothing more than a very thin, thin coating of darkened oil vapor residue which is pulled in from the crank case vent hose attached below the intake horn, after he air filter and sensor. Rip off! The vehicle ran perfect but for the check engine light, never ran cool or over heated and was getting good mileage. I let them replace the $600 plus fan for the $100 diagnostic fee. To keep from voiding my warranty, I had to spend the $149 for an old history code, to prove that I maintained the vehicle per dealer recommendations. Rip off !!!

Filed May 3, 2008 · Electrical · 44,000 miles · AZ

Vehicle was on and being driven on the highway/freeway when it shut off and lost power. Vehicle came a stop and restarted vehicle and it did not start immediately after a few attempts it started as if nothing happened and I drove it home. Luckily I arrived home and entered my driveway and it shut off again and has not been able to be restarted since. I have not gotten any resolution or help from a chevrolet company and they can not say what it possibly could be. There are trailblazer forums online that state the same by other owner who are experiencing the same. Please help as I and my kids could have been hurt or killed.