won't crank after rebuild

depotdave
Posts: 8
Joined: Tue May 27, 2014 11:09 pm

Re: won't crank after rebuild

Unread post by depotdave » Tue Jun 10, 2014 9:28 am

Final score: auto shop 1, shade tree mech 0. Not quite the problem of the nut behind the wheel, but close; the loose screw (bolt) at a ground connection. Continuity check with low powered multi-meter checked ok, but high-powered engine starting didn't happen, because of that loose connection. Thank you mystery mechanic for your thoughts and inputs. They saved me a bunch, not going to the dealership. Best wishes to you.

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carriedi
Posts: 2573
Joined: Wed Apr 10, 2013 12:42 pm

Re: won't crank after rebuild

Unread post by carriedi » Tue Jun 10, 2014 10:07 am

Ah yes, the poor ground connection. not the no ground connection that would be easy to find but the poor connection that will show ground but just not enough ground. A voltage drop test is needed to find that easily. Use your volt meter and measure voltage from the negative battery post and the starter ground (like the engine block somewhere, and though it may look good, you must check it when you go to crank the engine. It may show zero volts when not cranking but when you crank the engine it will shoot up and show you how many volts you lost to the circuit when you put the key in start.

glad it was something simple and didn't cost you a whole bunch of money to find. Congrats.
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