won't turn over by key
Thread Starter
|
Senior User
Joined: Dec 2004
Posts: 438
Likes: 0
From: Palm Bay,Florida
won't turn over by key
The truck runs and starts fine as long as you bridge the starter at the seleniod. Must not have no power to the cranking position on the key. any easy fix?
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Just get your test light out and trace from one end of the circuit or the other until you find the fault. Schematics can be found in service manuals and at the Auto Zone site. DO NOT just shotgun the circuit with replacement parts. Find the problem.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Originally Posted by Rob Cuenin
The truck runs and starts fine as long as you bridge the starter at the seleniod. Must not have no power to the cranking position on the key. any easy fix?
S terminal to Battery cable
or
Battery cable to starter cable
Possible causes:
1) NSS or shifter position
2) Bad Solenoid (if no crank with jumper from S terminal to Battery Cable)
3) Break in wire from switch to S terminal (open circuit)
Last edited by Mil1ion; Apr 20, 2007 at 03:11 PM.
Elder User
Joined: Jan 2004
Posts: 668
Likes: 3
From: NW Kans
i fought this exact problem for 3 hrs this afternoon. the brown wire from the I terminal should be hot with the key on. The red/blue wire on the S terminal should be hot in crank. this wire does not go to the ignition switch. there is a 4wire connector behind your wiper switch with i think 2 black/red wires and 2 red/blue wires. make sure the 2 red/blue wires are jumped together.
Trending Topics
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Sorry ...(blue/red wire) it does goes to the switch.. it is the Start position of the switch that sends power thru the wire to the S Terminal to activate the Relay which makes the starter crank.
Last edited by Mil1ion; Apr 21, 2007 at 12:16 AM.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
Senior User
Joined: Dec 2004
Posts: 438
Likes: 0
From: Palm Bay,Florida
I got it starting by the key yesterday.I had the nss wires coming from the trans plugged into the wrong plugin it should have been plugged into the plug that is by the wiper motor not by the main harness into the firewall. Just didn't see that plug way over there. Thanks for all the help. I'll get some new pics of the cab swap Ol blue & Green Machine are 1 now. Thanks again for all the great help! from everyone
Elder User
Joined: Jan 2004
Posts: 668
Likes: 3
From: NW Kans
Originally Posted by Mil1ion
Sorry ...(blue/red wire) it does goes to the switch.. it is the Start position of the switch that sends power thru the wire to the S Terminal to activate the Relay which makes the starter crank.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
The OP has a 78.
The diagram is from a 78.
STA and ST stands for starter..... this connection runs to the S terminal of the starter solenoid.
Perhaps seeing the igntion switch from a 77 or 78 will help.
This is a 77 switch.
This is a 78 which the OP should have.
The diagram is from a 78.
STA and ST stands for starter..... this connection runs to the S terminal of the starter solenoid.
Perhaps seeing the igntion switch from a 77 or 78 will help.
This is a 77 switch.
This is a 78 which the OP should have.
Thread
Thread Starter
Forum
Replies
Last Post
rockittsled
1973 - 1979 F-100 & Larger F-Series Trucks
17
Feb 17, 2014 03:27 PM
