Results 1 to 4 of 4

Thread: SOS....Engine heater failure?

  1. #1
    Join Date
    Dec 2017
    Location
    Charleston, WV
    Posts
    1

    Default SOS....Engine heater failure?

    Helga is my 2007 Duramax gal. I was finally able to locate the heating block plug thanks to YouTube and not the many GMC dealers or garage workers I've pestered over the years, but it doesn't seem to work. Is thete something else I need to do so it will work? Does it need a fuse? We have a diesel Ford and Dodge that work fine but I cannot figure out how to keep Helga warm on those cold nights. The end of the plug appears normal soo I assume it does not have a thermostat although I've been trying to use it in near zero weather.
    Any help is greatly appreciated!
    Rhonda
    ~R~

  2. #2
    Join Date
    Dec 2003
    Location
    Yukon Canada
    Posts
    1,612

    Default

    Hi Rhonda
    Welcome and Happy New Year
    It should just plug into an extension cord to work.
    If you are really quite when you plug it in you should hear it start to heat the water like an electric kettle.
    Or if you have a volt meter you can check to see if the heater is good by using the continuity setting and put a probe on each flat prong on the heater cord if the heater is good the tester should make the same sound as when you touch the prongs together.
    Thomas
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

  3. #3
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Arrow

    Welcome to the board!

    These engine block heaters are one of the more reliable components on these trucks. I've had a couple block heaters through the years that would trip a GFI (Ground Fault Interrupter) 3-prong outlet, but the heater would work normally when using a non-GFI outlet. I've yet to notice any problem otherwise.

    Jim

  4. #4
    Join Date
    Jan 2001
    Location
    New Hampshire - Live Free or Die
    Posts
    6,057

    Default

    Follow the cord to it's other (heater) end. It's possible it is unplugged on that end.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
    New ride: MB GLS450 - most stately
    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

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
  •