GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 1 of 2 12 Last Post byLast Post by
Results 1 to 10 of 11
  1. #1

    Default Electrical Problem

    I have an 02 Suburban Z-71 with about 180k miles. Recently, it is not wanting to start properly. It will have all the lights on and be ready to go then I turn the key and everything goes dead, like I just disconnected the battery. After about 15 to 30 seconds, it will reset, the lights will come on and it may fire up or it may go dead again. Sometimes when it starts, it will be only half-hearted and then dies shortly thereafter. I will just turn it off and try again and again until I get a proper ignition fire then it's ok....til the next time. Also, the lights (interior, dash, and exterior) pulse as well, I assume this is because of the same issue. Any suggestions? Voltage regulator or some sort of relay?


  2. #2


    My first thought with those symptoms is a loose battery cable or other source of a bad connection between the battery and the cable.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3
    Legend mmorgan1865's Avatar
    Join Date
    Feb 2010
    Port Orange, Florida


    The battery could also have a bad cell in it. That would make it intermittent. Put a volt meter on the battery and see what you get as it starts and while it is running.

    2010 Silverado Ext. Cab LTZ 2 WD 6 ft bed
    5.3L 6 speed w\ 3.08 rear end
    Navigation Package
    Westin lighted boards
    Undercover SE tonneau cover
    It's a start!

  4. #4
    Eddie Z71's Avatar
    Join Date
    Mar 2009
    Colorado Springs, CO
    Blog Entries


    Hi, and welcome to the site! Hope you can find whats wrong soon! Good luck!
    Eddie , 2000 Chevy Tahoe Z71 (old style)

  5. #5


    Welcome to the site!!
    If you find yourself slipping,.....tie a knot.....hold on tight

    2008 silverado
    1500 crew cab
    5.3 L 4x4
    Borla exhaust, rbp black tip
    tint, bed liner
    2.25 in ready lift leveling kit
    18x9 rbp 94r
    33x12.5x18 toyo mts

  6. #6


    Welcome to the site!

    Bobby - North Carolina
    2008 4x4 5.3L V8
    6" Suspension Lift and 1.5" Body Lift
    20x9 Ballistic Jesters w/35" Toyo Open Country MT's & 1.5" rear wheel spacers
    4:56 Yukon Gears
    Hypertech Speedometer Calibrator
    Baja style bed mount spare tire carrier
    Flowmaster 40 series dual exhaust
    Recon Smoked LED tails/3rd brake lights/black projectors w/switchback LED's in the corners
    N-Fab Nerf Steps
    K&N CAI
    No Fear Pedals
    Tint, Line-X bedliner, Window visors, Rear wheel well liners
    Painted front grill, bow ties and door badges, de-"lettered" tailgate
    Powder coated front and rear bumpers

  7. #7
    Master Mechanic shadowt_t's Avatar
    Join Date
    Oct 2009
    Baghdad. Iraq


    welcome to the site , well check maybe the there is short on cable ,, tail laight cable ,,, interrior light,, and cable and check the main cable for the battery ? may be the belt that connect to the elec generatore
    ashes to ashes dust to dust:slap:

    chevy tahoe 08 LT with sunroof
    cd changer leather seat ,20"wheels
    chrome full set 5.3 V8 back sensores
    4x2 fog lamps and full tint

  8. #8
    Sr. Mechanic Gambit's Avatar
    Join Date
    Feb 2010
    VA Beach for now


    I had something similar to this happen to me. Not on this truck but another one. I would start and it wold run but as soo as i turned the lights on it would die on me. It ended up being a loose connection. Not at the battery terminal but to the fuse block. The connection got corroded and only a few of the wire strands were still in tact. So the electrician said it was enough to handle the power of the vehicle running but the moment i put any other load on it i.e. the head lights it was too much power for the few starnds to handle and it would just die out on me. Check your power connectors make sure none of them got tweaked or corroded.
    Jeep Recovery Vehicle.

  9. #9
    Master Mechanic
    Join Date
    Sep 2008
    Dallas, Texas
    Blog Entries


    Welcome to the site, you might get more answers if you post this in a different section.

    Chevy Truck Parts
    Visit for all your Chevy Parts needs. These are factory OEM GM Parts with full GM warranty (unless otherwise stated).

    Parts For: Buick / Cadillac / Chevrolet / GMC / Hummer / Oldsmobile / Pontiac / Saturn

    877-347-6220 (New Expanded Hours)
    Monday to Friday - 7 AM to 6 PM Central
    Saturday - 8 AM to 2 PM Central

  10. #10


    Welcome to the GMTruckClub!

    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

Page 1 of 2 12 Last Post byLast Post by

Similar Threads

  1. Electrical Problem (need help)
    By 88Silverado in forum Chevy C/K Truck Forum
    Replies: 3
    Last: 06-15-2010, 10:12 AM
  2. Electrical Problem
    By tks20 in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 0
    Last: 03-07-2010, 09:00 PM
  3. Electrical problem
    By '90_400 in forum Audio, Video & Gadget Tech
    Replies: 9
    Last: 12-08-2008, 08:53 AM
  4. Electrical problem - Please HELP!!!!
    By 540hp in forum Audio, Video & Gadget Tech
    Replies: 2
    Last: 09-27-2008, 04:24 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