I have an 06 TB with the 4.2. The engine was knocking so I bought a used engine. It is out of a 2005. Since the head design is different along with one of the sensor locations, I re-routed the wiring to the "new location". I swapped out the fuel rail because they were different. Once it was...

Sorry if I missed it somewhere else but I have searched this and other forums and no luck with actual answers. Just many people with a lot of questions. Codes - P0420, P0430 Did have one for MAF sensor but cleaned it, cleared codes with OBDII tool, and even left battery unhooked for about 30...

Hello everyone, I have a 2007 Trailblazer LS with the I6. I have been having an issue with the battery becoming fully discharged after resetting a code through the OBDII and letting the vehicle sit overnight. This happened once about 3 months ago after resetting a code, and I wasn't sure what...

Just pulled 10 codes from my 04 TrailBlazer. One for TPS, one for crank sensor, one for cam sensor, and one for ECU (the others were non-related to this). I wanted to start with the ECU as all things connect to it and it seemed a good place to start. Got one from the jy and it won't let me...

2006 trail blazer 5.3 4 wheel Driving home the other day, car just quit, it would crank but not start, towed it back to the ranch it sat for a while then thought I would give it a try and it started. Idled fine, engine light is now on. I don't yet want to drive it very far as I don't want to get...

Been having issues with my brakes locking up with not much pressure on them all,so i brought my car to autozone today and ran the code reader on it. i got codes: c0267, c0291, c0281 the abs light is not on but the brake light next to it is. i already checked the fuse (i believe its the right...

I have a 2006 Trail Blazer with about 142,000 on it. The check engine light is on so I took it to Auto Zone to find out what is going on. The print out they gave me is kind of faded but it looks like #881 "vacuum leak on engine", #882 "Dirty Throttle Body", #883 "TAC Motor defective". Another...

I am having a problem with misfiring that I can not pinpoint. When the vehicle is first started the engine runs fine. However after it warms up a little the engine misfires when I come to a stoplight and it also misfires when I am cruising on the highway at around 2100 rpm. I have a code...

First post. My 2004 Trailblazer had it's ABS light come on a few days ago. I just got it scanned at our local fix-it place, and it came up with a C0400. He said this was an undocumented code and I have to go to the GM Dealer for a fix. Anyone know what the fix might entail ($$$)? I did a...