GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Default temp gauge reads ok at start, then falls to zero

    My temp gauge started acting up today. It reads at the correct temp when I first start the truck, then after 10 seconds drops to 160. when I start it, all the needles go all the way down, including the temp, then the temp stays at 160 or goes up to the correct temp then drops to 160. I connected my scan tool and am still getting a temp reading to the computer. any ideas? stepper motor? 05 yukon xl 5.3L
    Last edited by Pikey; 10-07-2012 at 06:06 PM.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors,
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  2. #2


    OK, I figured out the issue. Kind of. I just swapped out the alternator again because the one I put in 1 month ago was getting noisy. The temp gauge issue happened when I reconnected the battery. I was leaning toward the stepper motor. I have one and was going to change it out tonight. While doing research on how to do the stepper I came across a post on another forum from a guy with the same issue. It happened after he put a new battery in. He disconnected the battery for 45 minutes and it worked fine again. So, I disconnected mine and it seems to work just fine now. I don't know what the confusion was with the computer, but all is good.

Similar Threads

  1. Transmission Temp. Gauge
    By sc99z71 in forum GM Electrical Tech
    Replies: 10
    Last: 06-28-2012, 05:13 PM
  2. Temp Gauge on a 94 GMC
    By 94 Jimmy P/U in forum GM Powertrain
    Replies: 9
    Last: 08-17-2010, 03:25 PM
  3. trans. temp. gauge
    By rvpc in forum Audio, Video & Gadget Tech
    Replies: 3
    Last: 04-23-2009, 06:16 PM
  4. Transmission temp gauge help
    By jc8825 in forum GM Powertrain
    Replies: 1
    Last: 04-12-2009, 09:51 AM
  5. temp gauge?
    By 1993silverado4x4 in forum General Chevy & GM Tech Questions
    Replies: 2
    Last: 06-28-2008, 01:44 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts