No electrical power at all? - Page 2 - Ford Truck Enthusiasts Forums

Go Back  Ford Truck Enthusiasts Forums > Misc. > Electrical Systems/Wiring
Reload this Page >

No electrical power at all?

Notices

No electrical power at all?

Reply

 
 
 
  #16  
Old 03-13-2013, 02:03 PM
Oscar Walker
Oscar Walker is offline
Freshman User
Join Date: Mar 2013
Posts: 30
Oscar Walker is starting off with a positive reputation.
Originally Posted by Franklin2 View Post


WITH THE TRUCK IN PARK OR NEUTRAL what happens when you take a small wire and jump point #3 to point #5 in the diagram above on your solenoid on the fender?
Found this thread while looking for answers to my own electrical issues. I have an 85 F250 that has intermittent electrical problems. Sometimes when trying to start it, I get a dead key, no power to lights, dash or anything. In those cases, jumping a wire from 3 to 5 as illustrated in the above pic is the only way to start it. Any ideas? I'm getting a bit tired of running jumper cables from the engine to the cab so I can hold the ignition switch in place while jumping it over. I'm about to install a push button on the dash and just leave the wires in place.
 
Reply With Quote
  #17  
Old 03-13-2013, 02:39 PM
Franklin2's Avatar
Franklin2
Franklin2 is offline
Moderator
Join Date: Jan 2001
Location: New Market, VA
Posts: 41,329
Franklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant future
Originally Posted by Oscar Walker View Post
Found this thread while looking for answers to my own electrical issues. I have an 85 F250 that has intermittent electrical problems. Sometimes when trying to start it, I get a dead key, no power to lights, dash or anything. In those cases, jumping a wire from 3 to 5 as illustrated in the above pic is the only way to start it. Any ideas? I'm getting a bit tired of running jumper cables from the engine to the cab so I can hold the ignition switch in place while jumping it over. I'm about to install a push button on the dash and just leave the wires in place.
I don't know what tranny you have, but check your neutral safety switch. If you have a automatic it will be down on the driver's side of the tranny where the lever goes in. If you have a manual, some of them have a switch on the clutch pedal that has to be depressed for it to crank.
 
Reply With Quote
  #18  
Old 03-13-2013, 03:53 PM
Oscar Walker
Oscar Walker is offline
Freshman User
Join Date: Mar 2013
Posts: 30
Oscar Walker is starting off with a positive reputation.
Originally Posted by Franklin2 View Post
I don't know what tranny you have, but check your neutral safety switch. If you have a automatic it will be down on the driver's side of the tranny where the lever goes in. If you have a manual, some of them have a switch on the clutch pedal that has to be depressed for it to crank.
bypassed the clutch switch a few weeks ago, my problem is a total lack of juice coming from the battery to any part of the truck. No dome lights or anything.
 
Reply With Quote
  #19  
Old 03-13-2013, 05:11 PM
Franklin2's Avatar
Franklin2
Franklin2 is offline
Moderator
Join Date: Jan 2001
Location: New Market, VA
Posts: 41,329
Franklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant future
Take everything off terminal #3 in the diagram above. Make sure you take terminal #1 off for safety 1st though. At terminal #3 you have the large cable from the battery +, but you also have some smaller wires. One of these powers the whole truck. Make sure it looks ok and is well connected. Fix anything that doesn't look right, and put it back together. If it still does it, then follow one of these smaller wires down from #3 and unwrap the harness. There is usually a splice down in the harness, and sometimes it gets corroded. This main wire branches off to the alternator, and also goes in through to the firewall and feeds the ignition switch and the fuse box. It's the main power wire for the whole truck. The big fat wires are just for the starter motor.
 
Reply With Quote
  #20  
Old 03-14-2013, 12:45 AM
Oscar Walker
Oscar Walker is offline
Freshman User
Join Date: Mar 2013
Posts: 30
Oscar Walker is starting off with a positive reputation.
Replaced the battery cables, as I was also told that could be the issue. The cables were definitely in need of replacing, but that ended up not fixing the problem either. Found at least one fuseable link that was bad, straight wired it and that didn't help either. Finally ran out of time and wired up a push button switch so I could start it from inside the cab. I think I'm just gonna take it to a shop next week while on vacation and let someone else deal with it. I definitely see a full wiring harness replacement in this truck's future.
 
Reply With Quote
  #21  
Old 03-14-2013, 06:27 AM
Franklin2's Avatar
Franklin2
Franklin2 is offline
Moderator
Join Date: Jan 2001
Location: New Market, VA
Posts: 41,329
Franklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant future
Originally Posted by Oscar Walker View Post
I definitely see a full wiring harness replacement in this truck's future.
That's not going to happen, they don't make harnesses for these trucks(yet).
 
Reply With Quote
  #22  
Old 03-14-2013, 06:46 AM
Oscar Walker
Oscar Walker is offline
Freshman User
Join Date: Mar 2013
Posts: 30
Oscar Walker is starting off with a positive reputation.
yeah, believe me, I've looked everywhere for one. I was thinking of one of Painless Wiring's universal kits.
 
Reply With Quote
  #23  
Old 03-14-2013, 03:05 PM
Franklin2's Avatar
Franklin2
Franklin2 is offline
Moderator
Join Date: Jan 2001
Location: New Market, VA
Posts: 41,329
Franklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant futureFranklin2 has a brilliant future
Those universal kits are not that great. You have to splice wires everywhere to hook the original Ford plugs back in to the switches and stuff. So you end up with a spliced up mess that cost you hundreds of dollars. If you are going to end up with that you might as well repair the old harness with splices and new wire where it needs it.
 
Reply With Quote
  #24  
Old 03-14-2013, 10:26 PM
Oscar Walker
Oscar Walker is offline
Freshman User
Join Date: Mar 2013
Posts: 30
Oscar Walker is starting off with a positive reputation.
Spent 6 hours this evening trying to track down the problem with no luck. Checked every fuseable link I could find and all of them had continuity. Pretty sure its not getting power to the fuse block but damned if I know why. Finally said the hell with it. Gonna take it to a garage next week and let them sort it out. Electrical issues never were my cup o' tea.
 
Reply With Quote
  #25  
Old 10-09-2017, 12:02 PM
mefordf1
mefordf1 is offline
New User
Join Date: May 2017
Posts: 2
mefordf1 is starting off with a positive reputation.
I like my 51 F1.
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
evil_motors
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
30
08-27-2017 06:13 AM
stpaulf150
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
9
04-29-2017 02:33 PM
Furr308
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
6
01-15-2017 05:31 PM
fordatic
1973 - 1979 F-100 & Larger F-Series Trucks
14
09-23-2016 01:28 PM
cap4004
Electrical Systems/Wiring
38
06-07-2016 08:01 AM


Thread Tools
Search this Thread
Quick Reply: No electrical power at all?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.