1998 4.0 sohc alt wire | Ford Explorer Forums - Serious Explorations

  • Register Today It's free!

1998 4.0 sohc alt wire

un4givon

Member
Joined
October 12, 2007
Messages
19
Reaction score
0
City, State
Venice, FL
Year, Model & Trim Level
'98
Can someone..... anyone..... please help me with this. I have a 98 Explorer that I did an engine swap with a 97 motor. I did the swap with my stepfather and we, not knowing that we needed the 98 motor wire harness, tossed it out with the motor. So I recently just went to our local salvage yard and I picked up the 98 wire harness that I needed, a little hacked up with some of the connectors missing but im sure I can rig something up. The harness has the alternator wire but it is cut about 18 inches from the connector and I cannot, for the life of me, see where these wires are supposed to link up to in the damn hanes book. Can someone please give me detailed steps to getting this harness a home? Pics are greatly, greeaaaaatly appreciated as well. This has been a 6 month process and I need to get her back on the road. Thank you sooooo very much. Here are some details on the truck.

1998 Ford Explorer Eddie Bauer
4.0 SOHC 4x4
Automatic
 



Join the Elite Explorers for $20 each year.
Elite Explorer members see no advertisements, no banner ads, no double underlined links,.
Add an avatar, upload photo attachments, and more!
.





wiring diagram

My Haynes book is very incomplete as far as wiring diagrams. There were significant wiring changes implemented in 1998 so my 2000 should be almost the same as yours. If you tell me the colors of the alternator wires in question I can look them up in my wiring diagrams and tell you where they go.
 






My Haynes book is very incomplete as far as wiring diagrams. There were significant wiring changes implemented in 1998 so my 2000 should be almost the same as yours. If you tell me the colors of the alternator wires in question I can look them up in my wiring diagrams and tell you where they go.

There is a fatter yellow wire with white stripe and thinner dark green with red stripe.
 






regulator connections

There is a fatter yellow wire with white stripe and thinner dark green with red stripe.

The yellow/white wire goes to terminal "A" on the voltage regulator.

The light green/red wire goes to terminal "I" on the voltage regulator. My wiring diagram doesn't show a dark green/red wire associated with alternator.

Photo 11.7b in Chapter 5 of your Haynes manual shows the regulator terminals "A" and "I".
 






The yellow/white wire goes to terminal "A" on the voltage regulator.

The light green/red wire goes to terminal "I" on the voltage regulator. My wiring diagram doesn't show a dark green/red wire associated with alternator.

Photo 11.7b in Chapter 5 of your Haynes manual shows the regulator terminals "A" and "I".

I know where they go on the alternator... i have the plug and the wires.... I need to know where the ends of the wires go opposite of the alternator.
 






wrong ends

Sorry, I misunderstood the problem.

Yellow/white wire > C115F pin 42 > C115M pin 42 > Fuse 14 (30 amp) in battery junction box

Light green/red wire > C115F pin 41 > C115M pin 41 > C146M pin 17 > C146F pin 17 > C288 pin 3 > charge indicator in the instrument cluster

C115 is the 42 pin rectangular connector located in left rear corner of engine compartment afixed to the left side of the upper intake manifold

C146 is the 40 pin nearly square, screw together located in left rear corner of engine compartment below the battery junction box

C288 is the 10 pin rectangular white connector located in left side of vehicle, above steering column
 






Sorry, I misunderstood the problem.

Yellow/white wire > C115F pin 42 > C115M pin 42 > Fuse 14 (30 amp) in battery junction box

Light green/red wire > C115F pin 41 > C115M pin 41 > C146M pin 17 > C146F pin 17 > C288 pin 3 > charge indicator in the instrument cluster

C115 is the 42 pin rectangular connector located in left rear corner of engine compartment afixed to the left side of the upper intake manifold

C146 is the 40 pin nearly square, screw together located in left rear corner of engine compartment below the battery junction box

C288 is the 10 pin rectangular white connector located in left side of vehicle, above steering column

Ummm, what? After reading this again... your telling me that the 2 wires coming from my alternator go to 3 different wires? The green one splits off and splices into the 3 you have listed? And what is all this > C115F and C115M stuff? I am assuming that the "F" and "M" mean male and female? So do I have to splice into both the male and female? I am lost. Detailed instructions please.
 






path explanation

I was describing the path of the wire as it progresses:

Yellow/white wire > C115F pin 42 > C115M pin 42 > Fuse 14 (30 amp) in battery junction box

Is explained as follows:

The yellow/white wire from the alternator goes to female connector C115 pin 42 which mates with male connector C115 pin 42 that is connected via a yellow/white wire to Fuse 14 in the battery junction box

Light green/red wire > C115F pin 41 > C115M pin 41 > C146M pin 17 > C146F pin 17 > C288 pin 3 > charge indicator in the instrument cluster

Is explained as follows:
The light green/red wire from the alternator goes to female connector C115 pin 41 which mates with male connector C115 pin 41 that is connected via a light green/red wire to male connector C146 pin 17 that mates with female connector C146 pin 17 that connects via a light green/red wire to connector C288 pin 3 that mates with the instrument cluster that is connected internally to the charge indicator

None of the wires connect to more than one thing at either end.
 






Back
Top