Need help indentifying connection
Thread Starter
|
New User
Joined: Jun 2007
Posts: 14
Likes: 0
Need help indentifying connection
This is a 1991 F250 / 460 /Auto
I am trying to indentify a three wire connector that comes through the drivers side of the firewall inside the cab of the pickup. It comes in just underneath the main wiring harness. The connector is round and consists of a red wire(constantly hot), red with light green stripe and a blue wire. I cannot seem to locate what it is supposed to connect to. I have searched through both the hanes manual and alldata and cannot find out what this goes to. This truck is somewhat of a mess and will not start. I believe this may have something to do with it as from what I can see the red with light green stripe goes to the ignition system.
I am trying to indentify a three wire connector that comes through the drivers side of the firewall inside the cab of the pickup. It comes in just underneath the main wiring harness. The connector is round and consists of a red wire(constantly hot), red with light green stripe and a blue wire. I cannot seem to locate what it is supposed to connect to. I have searched through both the hanes manual and alldata and cannot find out what this goes to. This truck is somewhat of a mess and will not start. I believe this may have something to do with it as from what I can see the red with light green stripe goes to the ignition system.
Senior User
Joined: Oct 2005
Posts: 273
Likes: 0
Originally Posted by dragonslayerfx
This is a 1991 F250 / 460 /Auto
I am trying to indentify a three wire connector that comes through the drivers side of the firewall inside the cab of the pickup. It comes in just underneath the main wiring harness. The connector is round and consists of a red wire(constantly hot), red with light green stripe and a blue wire. I cannot seem to locate what it is supposed to connect to. I have searched through both the hanes manual and alldata and cannot find out what this goes to. This truck is somewhat of a mess and will not start. I believe this may have something to do with it as from what I can see the red with light green stripe goes to the ignition system.
I am trying to indentify a three wire connector that comes through the drivers side of the firewall inside the cab of the pickup. It comes in just underneath the main wiring harness. The connector is round and consists of a red wire(constantly hot), red with light green stripe and a blue wire. I cannot seem to locate what it is supposed to connect to. I have searched through both the hanes manual and alldata and cannot find out what this goes to. This truck is somewhat of a mess and will not start. I believe this may have something to do with it as from what I can see the red with light green stripe goes to the ignition system.
I just came in from parking my truck and brushed some leaves out of the floor area drivers side, and seen it again, wondering what the hell that plug goes to...I know I have a similar plug under the back bumper-I dont know if their attached-(Thats just a guess-) But yea,-same thing I have,-round connector,three female plug,-my wires are encased in a grey insulation, I'd like to know what thats for.-Mines an '88 F150 lariat EFI tow PKG shorty 4x4..runs well.
Thread Starter
|
New User
Joined: Jun 2007
Posts: 14
Likes: 0
Are either of your connectors actually plugged into anything? This is somewhat dissapointing, I was hoping it might be the reason why the pickup won't start.
Trending Topics
Senior User
Joined: Oct 2005
Posts: 273
Likes: 0
Originally Posted by dragonslayerfx
Are either of your connectors actually plugged into anything? This is somewhat dissapointing, I was hoping it might be the reason why the pickup won't start.
or something, i didnt even know it had power..never checked it.
Are you getting anything?-spark? fuel? lights go on?..
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic 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
Thread Starter
|
New User
Joined: Jun 2007
Posts: 14
Likes: 0
We swapped in this motor awhile back becausethe original engine started acting completely out of time and died all together. I know this motor runs because I had to drive the pickup it was in back to the shop where we swapped the motors. It has spark, it has fuel, all lights come on, checked the computer for codes and found nothing. I have checked and double checked all the connections. Changed out the TFI module and nothing. The truck will turn over but it won't start.
Senior User
Joined: Oct 2005
Posts: 273
Likes: 0
Originally Posted by dragonslayerfx
We swapped in this motor awhile back becausethe original engine started acting completely out of time and died all together. I know this motor runs because I had to drive the pickup it was in back to the shop where we swapped the motors. It has spark, it has fuel, all lights come on, checked the computer for codes and found nothing. I have checked and double checked all the connections. Changed out the TFI module and nothing. The truck will turn over but it won't start.
Did you keep the same computer with the motor you just switched?
Fordfuelinjection.com explains the difference in computers as to compatibility
Other than that..it sounds electrical,-sparkwise, --I have a fuel system shutdown switch underneath the dash on the firewall.this little bugger will automatically shut off with any kind of trauma to the truck..its for taking out the fuel pressure when an accident happens ,-and when changing over the fuel filters ..engine will turn over, but wont catch and run..
