How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1686
Experience:  GM Grand Master Technician 2007. 14 year experience.
10949255
Type Your GMC Question Here...
Gm Tech (Cam) is online now
A new question is answered every 9 seconds

Working on a 2000 gmc 2500 Sierra 6.0 I changed out the

Customer Question

Working on a 2000 gmc 2500 Sierra 6.0
I changed out the engine and have everything hooked back up, but it won't start
It clicks at starter, so I slow charged battery. Still only clicks when I try to start. So I changed starter, I still have the clicking at starter. I'm suspecting battery, but far as I know it worked fine before engine swap. Been have some below zero nights in a unheated shop over the duration of engine swap. ( about 2 weeks or so working on it here and there) . I am also suspecting a ground issue. I need some help. Thank you
Submitted: 1 year ago.
Category: GMC
Expert:  Gary replied 1 year ago.

Hi there,

First easy thing to do is measure the resistance in ohms from the engine to the frame.

Sounds like a ground strap missing.

Gary

Customer: replied 1 year ago.
Ok... Not sure how to do that
Expert:  Gary replied 1 year ago.

Do you have a Digital Multimeter?

Gary

Customer: replied 1 year ago.
Expert:  Gary replied 1 year ago.

Ok, select ohms (resistance), and measure between the engine block (good clean metal), and the battery negative terminal.

Should be at or near zero ohms.

Gary

Customer: replied 1 year ago.
Ok , I will do that. Will be a few days yet, will be out of town
Expert:  Gary replied 1 year ago.

Ok, I'll await for your reply after your tests.

Gary