2003 Chevrolet Trailblazer EXT: sudden loss of power

Filed May 30, 2018 · Electrical · 177,000 miles · TX · fire

One by one things have been going out and not working. First the car would not start all the time with the key, then the A/C stoped working, next was the fuel pump, then the injectors. I checked everything it could be. I was driving with my kids down the highway when my car just died lost power steering so it was hard to get off the road fast. I got it started and was driving and it did it again. I was able to finally get it home when it would not start again. After some research online found out this car has issues with the fuse box itself under the hood. I opened it up just to find the wording that connected the pins was broken in numerous places and had started to burn up in the box.

Filed Jul 28, 2014 · Electrical · 131,000 miles · PA

My vehicle started randomly shutting off while driving. Loss of power to everything but the brakes. Luckily I was only going 10-15mph each time this happened. With the recent recall in gm vehicles regarding the ignition switch I thought it would be a good idea to switch this part out first. Fixed the problem immediately. I would like to be reimbursed my cost for part and labor. I can't believe as many known problems the trailblazer has with this that it has yet to be added to the recall list.

Filed Jun 18, 2011 · Electrical · VA

2003 trailblazer ext 4x4 loaded purchased new 5-2004 sticker $ 42,000 I have owned 14 vehicles and have never had one with the problems this truck has. Gm has designed engineered and sold an unreliable unsafe automobile. 1. Electrical issues: rear brake lamp boards replaced 3 times, radio replaced, headlamp sockets melted, brake lamp bulb base melted. 2. Car loss all power while driving wife had to sit in middle of road until tow truck came. Truck only 2yrs old at that time cause of problem ignition switch. 3. Electronic fan clutch replaced twice 10-10 and 6-11 had to battle dealership to cover based on problem and get attorney involved cost to replace with diag. $700.00. 4. Sway bar link pin kit replaced twice. 5. 4x4 transfer case will not go into 4-wheel drive 2-wheel drive only when you select 4-wheel drive truck will not move and makes internal noise.trailblazer has a total of 115,000 miles. Just to make a comparison I purchased in 2001 a new toyota tacoma truck it has 176,000 miles on the odometer.other than standard maintenance no issues at all.

Filed Dec 10, 2009 · Engine · 87,000 miles · OH

I purchased a 2003 chevy trailblazer ext in june,2007. In jan of 2009 my problem first began. While driving normal speed, the service engine light sometimes comes on immediately followed by the "reduced engine power". When this happens, the car immediately loses power and the vehicles only goes around 10mph. You never know when it is going to happen. It can happen several times in a day or not at all. It is very dangerous when it happens because you can sometimes stop the traffic flow. The light will come off and the vehicle will return to normal speed if you stop the car and then restart it. It happens particularly when it is cold outside. In the morning it can happen 15-20 times before I get to work, and then in the afternoon only once or twice. I have taken it to several auto repair shops and no one seems to be able to fix it. They recommend one thing, I pay for it and then it happens again. I have had my clutch replaced and also the accelerator pedal system. I researched "chevy reduced engine power" on the internet and there are a great amount of pages of people experiencing this same problem. It appears to happen to chevy suvs, in particular the trailblazer. I don't understand how so many people can experience this same problem and there not be a recall. I have taken it to 2 chevy dealers and they don't even know what to do. I paid $18k for this vehicle in june, 2007 - I put $5k down and still owe about $10k. Chevy needs to recognize this problem and correct it. The vehicle is virtually undrivable and unsafe.

Filed May 13, 2009 · Engine · 165,000 miles · FL

2003 chevy trailblazer transmission. . I usually have to stop, put the car in park, and then back in drive once or twice to get first gear to engage. Also, when passing or accelerating on the freeway, I am losing power.

Filed Dec 1, 2006 · Fuel system · 75,000 miles · OH

I own a 2003 chevrolet trailblazer ext. I smelled a strong odor of gas emanating from my vehicle recently. After some investigating, I discovered that there was fuel leaking out of the top of my fuel tank only while the engine was running. I dropped the fuel tank and discovered that the metal nipples from the top of the fuel pump that connect the fuel lines to the fuel pump were completely rusted and when the vehicle was running, fuel was jetting all over the under carriage of my vehicle. The metal ring that holds the fuel pump to the tank was also severely rusted. Gm should know better than to put exposed metal fittings in a recessed tank where it is subject to rust, salt, corrosion etc. I had to replace the fuel pump at a significant cost. I also believe that this could be a potential fire hazard as the fuel was jetting all over the undercarriage and its proximity to the exhaust. My fittings were so brittle that you could crush them with your bare hands. Left unchecked, undoubtedly I would have experienced a loss of power and would have been a hazard to the other vehicles on the road-yet alone probably would have been stranded when the vehicle died. The old parts are available for inspection. A fuel pump should last more that (3) years in my opinion. This is a design and/or product failure.

Filed Apr 27, 2006 · Electrical · 31,700 miles · MO

Ac delco factory installed battery leaks battery acid on the positive side terminal causing my 2003 chevy trailblazer ext to lose all power including loss of being able to open rear door.