GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 3 of 3 FirstFirst 123
Results 21 to 23 of 23
  1. #21
    Jr. Apprentice
    Join Date
    Jan 2011
    Cornfields of Illinois


    I have no means of plugging it in because im at college in the dorms

  2. #22
    Jr. Mechanic LB'07-Z's Avatar
    Join Date
    Aug 2011
    Holly Pond, AL


    Bummer... maybe someone on here will chime in with some knowledge.

    '02 Chevrolet 2500hd
    6.6 Duramax LB7
    3.5" Straight Pipe
    4" MBRP Black Exhaust Tip
    Tow Mirrors
    TSC Black Low Profile Tool Box
    Maverick Brush Guard

  3. #23


    If you have a bad glow plug or two, etc..., less power would be being drawn after initial key, when your glow plugs are being activated. The only way to see if you have too high of an amperage draw on your batteries when your key is off, "draining them down" would be to do a parasitic drain test. you need a meter or tool able to read amps with and amp clamp. hope this helps.
    Quote Originally Posted by GMTruckManiac View Post
    I have been having trouble starting my 2002 duramax with 172k miles on it. Lately its been 0-10 degrees out with even colder wind chills. Went to NAPA and O'reillys and had them test the batteries and they both said they were fine. The battery on the drivers side tested out at 720 cranking amps and the passenger side tested at 623 cranking amps. Went to start it today at 10 degrees I decided to cycle to glow plugs twice, the first time the voltage gauge read 9V and for the second cycle it read 5V and slowly dipped down to 0V and started clicking. After 3 jumps to just the driver side battery i decided to jump both batteries and it started right up after a few cranks. Once it is running for a while and then turned off it will start right back up again, it is primarily having this problem after a cold night.

    I figure that I need new batteries but I was wondering if there is something draining the battery more than it should. Could this possibly be the glow plugs going bad and drawing too much power? Bad relay? Or something else?? Thanks ahead of time!!

    Chat Conversation End

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Understanding Differential Steering
    By Vincennes02261897 in forum GM Powertrain
    Replies: 1
    Last: 12-16-2011, 11:16 AM
  2. Replies: 1
    Last: 07-13-2009, 03:54 PM
  3. Understanding axle ratios
    By in forum GM Powertrain
    Replies: 2
    Last: 01-25-2009, 04:15 PM
  4. Am i understanding this right?
    By common dude in forum Audio, Video & Gadget Tech
    Replies: 11
    Last: 09-25-2008, 06:30 PM
  5. Understanding HP and Torque
    By no0b123 in forum General Chevy & GM Tech Questions
    Replies: 4
    Last: 07-25-2008, 12:54 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