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2002 trailblazer

  1. The 02-09 "How-To" and DIY Section
    so i had to replace valve cover gaskets, which took 10 to 15min...it was Just getting to the valve cover that was time consuming! Anyways so I am putting things back together hoping the problem is fixed..im at the point of putting the alternator back on... So I don't know if I'm tripping or...
  2. OEM Issues
    I tried Google and these forums but have been unable to find anyone with similar symptoms. Here's what I have: 2002 Trailblazer LTZ 4wd, 230,xxx miles SES light recently came on and produced codes P0171 and P0130. Poor fuel economy. NO driving issues at idle or while moving. While idling, I...
  3. The 02-09 "How-To" and DIY Section
    I have a 2002 trailblazer with auto a/c and I have a problem with the defrost/floor not switching. it is constantly open to defroster when it should be on the floor. The top blend door actuator is turning, as are all the actuators when they are supposed to, but I get no change, only defrost -...
  4. OEM Issues
    Hey all, new here and didn't see anything where it is JUST the Voltmeter/Batter/Electricity gauge that isn't working on a 2002 TB LS. Not on start, not before, and not while driving. Is there some wiring or something I should tinker with? Thanks, Zeke
  5. OEM Issues
    This is my first post, so thank you in advance for all your help. I have a 2002 Trailblazer and my remote key less entry has stopped working on both of my FOB's. I have changed the batteries and they are still not working. I have tried to reprogram by the following method found online: hold...
  6. Towing
    Hi all, I'm a potential Trailblazer owner and new here. We kinda put the cart before the horse, found a pop up camper that we couldn't pass up but don't have the tow vehicle yet. The camper is a 2005 Viking Legend 2471st witha dry weight of 2358lbs, a GVWR of 3340lbs, electric brakes, and a...
  7. Introductions
    Hi everyone! I have a 2002 Trailblazer LS 4.2L (all stock) and have recently run into a problem with my cruise control not working...at all. Even though there is no "check engine" light on, I had the codes checked anyway and it also showed none. I’ve noticed there is no specific fuse for it...
  8. 4x4 Drivetrain
    Not sure where to go with this as I have tried to search for this but nothing comes close to resembling the issue I'm having. Being as mechanically declined as I am, maybe I'm just not searching the right way... When my 2002 TB LTZ is in motion starting about 15-20 mph and up, I get a noise...
  9. OEM Issues
    Hello everyone I got a 2002 EXT 4.2L I6 and its been smooth sailing for about 5+ years its only got 124,000 miles...I know this has been just about beat to death...I have been through changing the oil pressure switch a year ago...all has been fine until just about the same time this year, I got...
  10. 4x4 Drivetrain
    Reposted in the OEM forum: sorry for putting it in the wrong place. My mechanics are stumped. My 2002 Trailblazer has been acting up. Monday, the SES light started flashing and my vehicle was shaking when I left work to go get lunch. The last time that happened I needed an ignition coil...
  11. 4x4 Drivetrain
    Hi Everyone, Here is my story- I have Trailblazer 2002. Initially I swithed the nob from 2WD to Full 4WD, the light kept blinking but didn't feel any engaging, and once in a while this also triggered Service 4WD light on. Brought the car to dealer and it was told Encoder Motor problem and...
  12. Introductions
    Hi Everyone, Here is my story- I have Trailblazer 2002. Initially I swithed the nob from 2WD to Full 4WD, the light kept blinking but didn't feel any engaging, and once in a while this also triggered Service 4WD light on. Brought the car to dealer and it was told Encoder Motor problem and...
  13. Audio and Electronics
    I have a 2002 TB LS with the factory head unit and crappy stock speakers (non bose). My LF speaker blew out a while ago and I'm just now getting around to fixing it. I bought a pair of Pioneer TS-G1643R two-way 30RMS from Crutchfield to replace both front speakers. I don't think I'll have any...
  14. OEM Issues
    Hey All! In the past I have successfully fixed problems with my 2002 Trailblazer from help on this forum and I'm rolling the dice on another issue. Last time we were able to change out the fan clutch motor and saved my pocket about $900 - $1100! Before that the CD player, before that we...
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