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 4 of 4
  1. #1

    Question Randomly won't start??

    I'm having some starting issues with my 94 GMC k1500 - it starts fine most times but other times just won't. It cranks and sounds OK but won't run. I replaced the cap, rotor, plugs and wires last August, it has a new battery I put in last month. New fuel pump less than 30K ago, oil and coolant levels are good...can't figure this one out.
    Could the starter be going? Would that cause that? My son tried starting it this AM and couldn't get it going but it fired up for me this afternoon. When it did it felt like it kind of hit a peak then started - picture you running up a hill you hit the crest and the downhill is easy. Hard to explain I guess.
    Happens in any temperature even if it's plugged in.

    My truck's info - 94 k1500 stepside, 255K...
    1994 GMC Sierra Stepside

  2. #2


    if its cranking fine and running fine its not the starter or gas or spark
    any troubble codes?
    sounds like an ignition imput sensor could be starting to go out. coolant temp, CPS, TPS, MAP sensor.... its hard to say
    Gas was $1.83 when Obama took office.....

  3. #3


    so what your saying with the hits a peak and then starts it it cranks hard at first then starts? it honestly could be your starter just because its cranking doesnt always mean your starter is good sometimes when the brushes inside are goin out it has enough to turn the motor but not enough to turn it fast enough to start it, and other times the vibration of cranking the motor with be enough to vibrate the brushes into the right place an bam start hits right and fires up (hard/slow cranking in the beginning then hit your peak and fire up). my suggestion would be to pull the starter and have it tested to see if its got the power its supposed to.

    hockey is life everything else is a crutch

  4. #4


    Im having the same problem with my wifes 94 suburban 5.7 Every now and then when u turn the key it just click after about five or so tries it fires right up. The starter has no hesitation when it does start.
    Last edited by blueninja; 05-25-2013 at 12:14 PM.

Similar Threads

  1. 1995 C1500 Randomly turns off
    By Anv1319 in forum General Chevy & GM Tech Questions
    Replies: 1
    Last: 04-11-2010, 07:38 PM
  2. ABS kicks in randomly, but no code
    By Mindi51982 in forum Lifted & Offroad Suspension
    Replies: 21
    Last: 02-26-2010, 07:10 PM
  3. 99 Tahoe randomly cutting off
    By wedgers in forum GM Powertrain
    Replies: 2
    Last: 01-10-2010, 10:16 AM
  4. 97 GMC Truck Shutting Off Randomly
    By Custmx1 in forum General Chevy & GM Tech Questions
    Replies: 9
    Last: 08-22-2009, 09:20 PM
  5. Factory clock resets randomly
    By bluecow24 in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 4
    Last: 01-22-2009, 06:25 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