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Dec 22, 2019 | 12:29 AM

ethanshane07

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Just click click

I have a 78 f150 with a 400. Drove 3 hrs no problems 2 day for. Parked it for the night. Wouldn't turn back on next day. Just clicked when I tried to start. The battery is charged. Put the multimeter on it everything is good there. I checked the grounds on it and the starter relay. Tried replacing starter after I tested it and found that it wouldn't spin when hooked to battery. Still nothing. I tried to bypass starter relay with screwdriver. Just sparks. Could it be the ignition switch? Ideas?

Dec 22, 2019 | 12:32 AM

broktruk

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Joined: Jan 2018

Posts: 898

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From: Coos Bay

Initial feeling is to remove the battery post clamps, clean them well and put em back, make sure they’re tight. What I’ve ran into on a couple different rigs.

edit: the new starter wouldn’t spin? Sounds like a bad battery

Dec 22, 2019 | 07:42 AM

Tedster9

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Joined: Apr 2002

Posts: 19,311

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From: Waterloo, Iowa

Ho, ho, ho!
Who wouldn't go?
Ho, ho, ho!
Who wouldn't go!
Up on the housetop,
Click, click, click,
Down thru' the chimney
With good Saint Nick.

So, how exactly did you check the grounds?

Dec 22, 2019 | 08:35 AM

alans77crew

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Joined: Dec 2004

Posts: 754

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From: Idaho

Might also take a good look at battery cables have had them corrode in the middle under the insulation

Dec 22, 2019 | 10:01 AM

caravaggio2000

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Joined: Apr 2018

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Quote:

Originally Posted by alans77crew

Might also take a good look at battery cables have had them corrode in the middle under the insulation

This. If you are 100% sure the grounds are good (double check) this is the next best guess.

Dec 22, 2019 | 11:50 AM

72rtchallenger

Fleet Mechanic

Joined: Jul 2017

Posts: 1,276

Likes: 12

From: KY

Quote:

Originally Posted by ethanshane07

If you bypass starter solenoid on firewall it should crank ,,if you put 12 volts on the side that runs to starter it should crank over

Dec 22, 2019 | 02:50 PM

Tedster9

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Joined: Apr 2002

Posts: 19,311

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From: Waterloo, Iowa

Careful (if a manual xmsn) that it is in neutral when bypassing. Don't take out the garage door with your truck, Mama will not be happy.

Can also try banging on the starter case a few healthy raps with a small sledge or hammer, and see if it turns over then. If successful it means a new starter is in your future.