1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

Electrical problem

Discussion in 'Audio, Video & Gadget Tech' started by '90_400, Dec 2, 2008.

  1. '90_400

    '90_400 New Member

    Hey, I'm new here and I have a 1990 GMC 1500..I just put a BRAND NEW battery in it, as well as a new starter..and here is the problem..when turning the key to the on position it only shows 9v, when I turn the right turn signal on it will go up to about 11v, when i go to crank it, it completely dies and my headlights are on, even tho the swtich is off. but if i go to jump start it it will show 14v crank over twice and die..I was thinking a possible short? or??..but I dont know where to start. ANY imput would be GREAT..

    -Ryan
  2. ct9a

    ct9a New Member 1000 Posts

    Can you get the truck running at all? Have you checked the alternator?
  3. Steban

    Steban New Member

    check all your grounds. any loose correction will give you a false reading
  4. 95CTburb19

    95CTburb19 New Member 1000 Posts

    check you battery terminals too!
  5. '90_400

    '90_400 New Member

    Well I found out what it was, and it was something stupid, it was the Neg. wire off the battery, I had already cleaned it good and had it tight or so i thought but the bolt was to long and tightend down but the cable didn't, so I checked it again and made sure it was clean and used a shorter bolt and works GREAT now:great:...I was losing my mind trying to figure it out because I had already done it before but I'm glad thats all it was..thanks for the replys and help

    -Ryan
  6. dwill3015

    dwill3015 New Member ROTM Winner 1000 Posts

    Welcome o the site! Glad it was something simple.
  7. 04sierracrewcab

    04sierracrewcab New Member 1000 Posts

    welome to the site! :sign0016:
  8. Steban

    Steban New Member

    glad you got your problem fixed. always check the simpliest things first.
  9. bry2500

    bry2500 New Member 1000 Posts

    Welcome to the site.

    Good investigating. A++, Job well done.:sign0173:
  10. daddytech

    daddytech New Member

    yeah for future reference when you tighten the cables down properly you should be able to grab the cable and try to move it from side to side and it should not easily move if at all. could have just as easily been something complicated like a really hard to find short. Glad it was something easy and simple for you , count your blessings, this was one of them for sure.

Share This Page