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  1. DJ BigDog

    Ideas on HVAC issue...

    So my 05 Z71 recently stopped blowing air from the front vents entirely. Also when I turn on the AC I hear the compressor kick on under the hood but no cold air at all comes out of the front vents. If I turn on the rear vents on the cold AC setting it blows nice cold air out of the rear vents...
  2. DJ BigDog

    Service Air Bag Light came on this morning...

    So I went out and hopped in the hoe to head to work and on startup the Air Bag lights flashing and the info display started reading "Service Air Bag".... totally out of the blue... haven't hit anything to trigger sensors, haven't had any recent electrical surges through system, just purely...
  3. DJ BigDog

    Intense Electrical Issue

    I had been getting the P0455 evap trouble code for awhile and the tighten fuel cap message so I finally replaced the Evap Solenoid Sensor and cleared the codes and that seemed to fix my issues. Turned out to be a bad ground cable on back side of engine to firewall. Also took out the TPS...
  4. DJ BigDog

    Here's a weird one...

    the ground in my case was the one at the firewall you've mentioned but the problem is any bad ground will cause this sort of thing so do a thorough exam of all the grounds!
  5. DJ BigDog

    05 Z71 Shuts down while driving...

    No big potholes but a ground issue wouldn't surprise me. I was thinking about redoing all the grounds anyway so I guess this is a good reason to make time for that.
  6. DJ BigDog

    05 Z71 Shuts down while driving...

    So my white whale learned a new trick today.... while driving the engine just shuts down, no warning no lights just powers down. The dash lights stay off so it's not like the ignition was shut down, I can put it in neutral while coasting and all but one time she fired right back up, that one...
  7. DJ BigDog

    Here's a weird one...

    LOLOLOL easy boys!!! I too have 15 years experience in automotive electronics and this particular ground wire escaped even my attention... which I don't feel bad about since it took a GM master tech 2 days and 2 calls to the Tech Help Line to also find this particular ground! rockola1971 I...
  8. DJ BigDog

    Here's a weird one...

    Final Verdict: Tech found a corroded engine ground under truck up high. This was causing the drop out which in turn fried the module. I guess it was the weakest link or closest electronic component. Replaced and cleaned area of ground strap reset everything and no issues per the Tech. I go to...
  9. DJ BigDog

    Here's a weird one...

    Update to update: Tech has module installed still limp mode solved but intermittent short to system still happening on bumps. That's what shorted out the Module and blew it in the first place. So now hes chasing a short and after calling GM TAC LINE he's officially on his own because they had...
  10. DJ BigDog

    Here's a weird one...

    And the story is complete.... after taking it to a local garage that was stumped on the usual suspects that would be causing that issue I ended up with it at the dealership. They called a little bit ago and verdict is.... TAC Module!!!! $694 with diag, part and install. Thank god for a good...
  11. DJ BigDog

    Here's a weird one...

    So update to the issue. I checked the potential issues mentioned in the thread already and found no obvious problems. Last night on the way home I hit a bump and it did its momentary power loss then shortly there after without any bump it did it again twice in a row. Later on after a stop the...
  12. DJ BigDog

    Here's a weird one...

    So today while driving on an ugly PA road I hit a bone jarring pothole and the Ho shut down for a split second, door's unlocked, CEL flashed on, it didn't seem to lose power completely but seemed like it reverted to just ignition on for a split second then everything returned to normal. It did...
  13. DJ BigDog

    HD Wide Mouth Grille (Yet Another Face Lift)

    Looks great man! Did you mount the light bar to the v-shaped rad support bars that hold the latch in place... (I think I'm remembering what I saw in there when I looked in fall...) I have a similar idea planned.
  14. DJ BigDog

    Good Tuning Shop in Northeast PA area

    Does anyone have a recommendation on any quality, experienced, tuners in the Northeast PA area or within a few hours drive of that area? I'll be adding exhaust and intake in spring and I'd like a flash prog from someone who is familiar with getting the best possible tunes from our platforms...
  15. DJ BigDog

    ***Official PA Thread***

    I'm here in Berwick in the heart of NEPA!
  16. DJ BigDog

    Where can I pick up some permanent 12V ?

    There are 2 heavy gauge red wires in the ignition system harness coming from the column to the underdash. Just remove the underdash panel below the steering wheel and you'll see the harness. either of these can be tapped into to provide constant 12v. saves running a wire to the battery. A good...
  17. DJ BigDog

    LED Light bar in grill

    Did you get this done yet? I just got my 05 z71 and I've been measuring and measuring... looks like a 32" curved bar will fit right in the upper grill section if you cut out the black insert on that section. should fit most bar housings well enough to be flush... I'm nervous but think I might...
  18. DJ BigDog

    Dipped plastics on a Z?

    I was wondering how this looks as well. NAPA has a bumper trim spray paint that's halfway between undercoating and a thick sealing spray paint and they have a few colors available like white, black, and grey. Been thinking of doing my lowers in the white to make mine a full monochrome look...
  19. DJ BigDog

    Excessive A/C Drainage

    LOL Ok thanks Sumo!!! I've been in the auto industry 20 years and never saw AC drainage like that!!!! That's cool. On that note though.... does all that water flow lead to any increased rusting underneath I need to look for and deal with???
  20. DJ BigDog

    Excessive A/C Drainage

    Alright Guru's. My 05 z71 hoe sweats like no other vehicle I've ever owned and I would like the peace of mind to know this is common for these. I've noticed it's a lot heavier on humid days which is expected but even on lesser humid days the drainage is pretty pronounced. Is this typical? I run...

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