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  1. 02-09 Vortec 4.2L I-6 Engine and Drivetrain
    my trailblazer wouldn't go into 3rd 6 months ago and we got an offer to switch out the transmission for a rebuilt one for $300 at the same time we messed with some of the electrical stuff because my right headlamp was off and we fixed both issues. but about 2 months ago it started to act up...
  2. Air Induction
    Hi, so my 2003 gmc envoy was running perfect, until the next day when I was going to use it, the truck didn’t want to go over 20 mph. So I took it home and tried fixing the throttle body and didn’t work, bought a accelerator pedal and still didn’t work, been having it sit there for a couple of...
  3. OEM Issues
    Hi Trailvoy.com family. I have a 2007 Trailblazer with the 6 cylinder 4.2 engine. The vehicle is 2WD and has just over 170,000 miles. Last Monday (3/26/18) the vehicle ran fine. I went to use the vehicle on last Thursday (3/29/18) and that is when the problems began. I was able to use a...
  4. The "How-To" and DIY Section
    P0756 Shift Solenoid B Wont go away - Need Help I just bought a 2004 I6 2WD with 150k miles. The truck had sat for an extended period due to engine missing on 4-5-6. Towed it home and did the tune up: drained gas tank, cleaned throttle body, new plugs, fuel filter, coil pack for #4 cylinder...
  5. General
    These issues started Sunday morning. I had the trans not shifting issue on a road trip two months ago and a trans shop initially told me I needed a trans replacement, and then said it was actually an electrical problem caused by a bad ignition switch. I thought it might be another bad ignition...
  6. OEM Issues
    Both of these issues started Sunday morning. I had the trans not shifting issue on a road trip two months ago and a trans shop initially told me I needed a trans replacement, and then said it was actually an electrical problem caused by a bad ignition switch. I thought it might be another bad...
  7. OEM Issues
    I went to a local trans shop and they ran the codes for me, shift solenoid a&b, torque convertor solenoid, as well as a couple others (5 codes total). The guy at the shop said it sounds to him that the trans isn't getting any power. I have checked most of my fuses and they all seem in perfect...
1-7 of 9 Results
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