Results 1 to 4 of 4

Thread: over heating

  1. #1
    Join Date
    Jan 2015
    Location
    Lewis & Clark, Montana, Helena
    Posts
    1

    Default over heating

    I am the proud owner of an 07 GMC sierra classic, I bought it new and have put 105,000 miles on it. On my most recent trip I put the winter cover over the grill, the temp was 10 above. As I was pulling a pretty good hill 7% grade, and it heated up, I stopped and removed the cover and the temp gage went right down. A week later I again put the cover on for a ski trip as the temp was 3 above. I again had a pass to go over, and about half way up it again heated up. Any thought out there as it has never done this before.

  2. #2
    Join Date
    May 2012
    Location
    Langley
    Posts
    369

    Default

    I'm definitely not overly knowledgeable on this.

    But I had similar issues last summer.

    In addition the water cooler started leaking, it was end of season so I didn't do much with it, just loosened the cap a little and let it mostly sit over the next few months.

    We just pulled the pump out, and found that the pump base was wearing out and probably wasn't running very efficiently.

    The other thing to check is you're cooling stack? Is there a pile of mud and wasp nests hanging out in your radiator?

    Anyway, hope it's not your pump... It's allot of labour to get to it.

    G
    GMC Sierra 2500hd 2004.5 now with ARP studs

  3. #3
    Join Date
    Mar 2000
    Location
    Loyal WI US
    Posts
    10,792

    Default

    How hot is it getting and how heavy are you pulling?
    Kennedy Diesel-owner
    More than just a salesman-I use and test the products that I sell on a daily basis!
    Superflow Lie Detector in house
    2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
    2005 Chev K3500SRW D/A CC Long LT(SOLD)
    2007 Chev K2500 Classic EC Short LT (Sold)
    2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
    2016 GMC K3500SRW D/A CC short LTZ

    Custom tuning in house using EFI Live tuning software!

  4. #4
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Arrow

    A few Februarys ago I towed a 6-8k enclosed trailer a about 500 miles that included some mountain passes. I noticed early on that even though it was pretty cool outside, I needed to remove the grille cover. Never overheated, but ran a lot warmer than normal... even with temps in the 10s.

    Don't think it would overheat when running solo, but we shouldn't tow in the winter with the grille cover...

Posting Permissions

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