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  1. east302

    1996 Yukon radiator recommendation

    Just a heads up, most aftermarket radiators have a port that is not used on the 5.7 vortec. They’ll install a cheap rubber cap that will crack and leak after a while. The one in the picture was maybe a month old. So, replace it with a silicone cap and it should be better. Or, get a...
  2. east302

    What did you do to your OBS GMT400 Tahoe/Yukon Today?

    Dang, where does it keep failing? I’m on my second since new so maybe I just got lucky.
  3. east302

    1999 Tahoe BCM

    It was used on the Escalade and Denali and is buried under the center console. You wouldn’t have one.
  4. east302

    New to the forum

    Here’s the wiring diagram for the starting circuit. With someone holding the ignition in start, check for voltage on the small purple wire at the starter. See if that wire is even intact - I’ve broken two during starter replacements. If no voltage there, start checking further back - the...
  5. east302

    1999 5.7 Vortec problem

    If you had instant fuel pressure loss, I would guess a leaking or stuck open injector is washing fuel down the cylinder walls. Pull the plugs to see which one is wet or which cylinder is full of fuel. I wouldn’t try to start it again. Get the oil drained out as well. I’d fill and drain a few...
  6. east302

    1996 Tahoe 2 dr. Dash Rear Wiper and Hatch switch lights not working?

    I had some leftover from an eBay replacement radio light kit and used them on the switches. It’s been a few years, but this was them - Eiko 7219. They didn’t have the blue rubber sleeves that the switch bulbs had.
  7. east302

    1999 Chevy Tahoe Rear Hatch Latch

    Here’s a site with the original GM part numbers, maybe it will help in sourcing a used part. https://nemigaparts.com/cat_spares/epc/chevrolet/54c-k/17/tc17-009/
  8. east302

    1999 Chevy Tahoe 4x4 Crank - Will Not Start - SOLVED

    Thanks, that helps. I see it now in the 1st edition C/K book but they deleted it in the 2nd. But mine still has the blurb about the oil pressure switch powering the pump. I guess the revision made sense to someone at the time, lol.
  9. east302

    1999 Chevy Tahoe 4x4 Crank - Will Not Start - SOLVED

    Hey, What page was that diagram with the oil pressure switch? I looked all over my manual (1998 2nd edition) and couldn’t find it but knew that I’d seen it somewhere before.
  10. east302

    1999 Chevy Tahoe 4x4 Crank - Will Not Start - SOLVED

    On my 98, the pump test wire is red with a white connector on the end. Just put battery voltage to it and see what happens. It’s at the driver side firewall. Here’s the wiring diagram. With a meter, check for voltage at the relay terminal coming from the fuse (87) and also the VCM relay...
  11. east302

    P1860

    Here’s the diagnostics for a 98, maybe it’ll be close enough for a 99. It references a Kent Moore harness (J-39775) for testing. Sometimes you can get a good deal on used Kent Moore tools on eBay, but a quick Google search returned this post from someone that managed to test without it...
  12. east302

    99 Yukon slt interior light problem

    The GM manual will have the diagnostic procedures for the interior lights. The manuals can be downloaded here, go to post #77 for the 1999 links: https://www.gmt400.com/threads/88-98-service-manuals.43575/page-8
  13. east302

    #5 and #7 misfire

    I’d agree, check that one off of the list. A lot of aftermarket distributors come with those fixed clamps. In case you need it, the GM part number is 10096197. If you’re junkyard shopping, the same part number is used on the 305 and 350. Not used on the 4.3.
  14. east302

    1995 Yukon High Idle

    Is it happening only when the brakes are applied (brake booster)? GM published diagnostic procedures in the manual. The link is in post #6, but here is an example from the 95 manual:
  15. east302

    Help with Z71 Decal Placement on ‘99 Two-Door Tahoe

    Well that’s not too bad of a price then. Around 2019, I priced a paint job on my truck. The clear is peeling off and looks pretty bad. Maaco style jobs were $3k and two body shops said $8-10k. There wasn’t much middle ground that I could find and I gave up on it. One of these days…
  16. east302

    Help with Z71 Decal Placement on ‘99 Two-Door Tahoe

    No, mine didn’t come with the decals though I do kind of like the way they look on these. They’re too long to fit in the same spot as the pickups, so I guess there’s some flexibility in where you replace them. Check out the Tahoe listings on bringatrailer.com for some ideas. Dare I ask how...
  17. east302

    Help with Z71 Decal Placement on ‘99 Two-Door Tahoe

    On a Tahoe with the Z71 RPO, the decals would have been dealer or otherwise non-factory additions. I measured them on my son’s 98 pickup when we considered repainting it. That’s probably what a dealer would have based it on so maybe it will help. Driver Bottom is level with the bottom cutout...
  18. east302

    99 GMC Yukon no heat **SOLVED

    Sorry, so it didn’t come with rear heat or the rear heat isn’t working either? If it didn’t come with rear heat, the panel may not be sending a signal to the actuator. There would be three wires to its connector - ground, battery and signal voltage. The signal voltage should vary as the...
  19. east302

    99 GMC Yukon no heat **SOLVED

    Do you have rear heat and does it work? The front heat actuator is behind the ashtray and has a notched dial on it. You’d want to see if it has equal travel from cold to midpoint and midpoint to hot when adjusting the dial.
  20. east302

    '99 4x4 Tahoe LT lower control arm

    Is it confirmed that the UCA knockouts are still intact? Having the knockouts in place allowed the factory to install the arms within spec without the need for an alignment. If adjustment was needed down the road, the tabs could be punched out to elongate the bolt hole. It should already...
  21. east302

    What did you do to your OBS GMT400 Tahoe/Yukon Today?

    GM doesn’t show it as a part with the mirror, so it may be something that comes with the windshield to help the glue stick better.
  22. east302

    What did you do to your OBS GMT400 Tahoe/Yukon Today?

    Here’s the wiring diagram, maybe it’ll help…
  23. east302

    Horizontal vs Vertical Distributor

    Yeah, just take the screw out of the hose
  24. east302

    1999 Chevy Tahoe

    What does the connector that plugs into the blower switch at the control panel look like? Jiggle it around and see if the blower responds. Some years had an intermediate connector on the power line maybe 1-ft from where it connects on the blower. Those can melt as well.
  25. east302

    Torsion Bars

    Yep, R on passenger side. Pictures were taken from the front.

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