Have a 2001 GMC Sierra 2500 HD Diesel. Will not start, charged batteries, changed starter. Batteries stay charged for a couple hrs and when i turn the key the cylenoid is trying to engage and the electrical goes haywire.
Anyone have any suggestions what I could search next?
What causes draining batteries w/in couple hrs and electrical going haywire?
I would go to a Batteries Plus, I believe they diagnose battery related issues for free.
What causes draining batteries w/in couple hrs and electrical going haywire?
How old are the batteries? They do wear out to the point where they cannot be fully charged and/or do not %26quot;hold%26quot; a charge. also, clean and tighten all battery cable connections. Even a perfect battery cannot conduct its energy through corroded/loose cable/terminals.
It sounds like you have a short somewhere.. If you take off the neg or Positive and you see sparks that will tell you if you do have a short or something is on..
