Electrical problems - No Crank/No Start

Reply Subscribe

Thread Tools

Search this Thread

Aug 6, 2015 | 01:28 AM

#16

blackjack33

Senior User

Joined: Jul 2013

Posts: 307

Likes: 1

From: Isla de Muerta

Quote:

Originally Posted by HIO Silver

Go back to basics and get the simple circuits corrected.

Exactly. Start with the simple things first, they are usually the culprit(s).

Aug 6, 2015 | 10:26 AM

#17

jackburtonme

Tuned

Joined: Jun 2015

Posts: 375

Likes: 3

From: Southern OR

Quote:

Battery is brand new although the battery cables are in horrible condition.

Sounds to me like you answered your own original question...

12 volt test light is your best friend when working on anything automotive. Tracing power with the light, and under standing 'some' of the electrical system (use a ford truck manual), and you can go along way. Hopefully it's up and running today!

Aug 6, 2015 | 05:13 PM

#18

AR78F150

Thread Starter

New User

Joined: Aug 2015

Posts: 7

Likes: 0

Quote:

Originally Posted by blackjack33

Per the pic of the four post relay, just turn the ignition switch "ON" and check for voltage coming out of the relay.

Here's a pic of the "basic" ignition layout.If you need more details on circuits,etc. let me know.

OMG, this is awesome. Thank you. Unfortunately, no progress on the truck yet but I did an extensive search all day long. It is as hot as hell outside, I am waiting to get it cooler.

Aug 12, 2015 | 04:00 PM

#19

AR78F150

Thread Starter

New User

Joined: Aug 2015

Posts: 7

Likes: 0

Update: Problem solved

The culprit was the battery cables. I also sanded the engine ground connection behind the alternator and the sheet metal behind "real" starter solenoid ground. I am not really happy with the new zinc battery terminals because they are flimsy but they are allegedly more conductive than the lead terminals. The new wiring harness is arriving tomorrow, I am excited

. Thanks to everyone helping me on this issue.