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Fordboy77'
New Member
- Joined
- Feb 4, 2010
- Messages
- 17
- Reaction score
- 1
- Points
- 0
- Location
- A-Town CO
- Vehicle Year
- 1990
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Manual
I am just throwing this out there, to see if anyone has any ideas why the ranger won't go into 4wd. I have replaced the shift motor( previous owner/mechanic told me thats what was wrong with it) and turns out that its not the shift motor. From what i know about the early electronic 4x4 used in rangers and explorers is that your supposed to hear a clicking sound coming from the Control Box in the back seat. Well i can push the buttons, and get nothing at all. When i start the truck up with the 4x4 computer disconnected the 4x4 lights on the switch do not come on. But when i start the truck with it connected the 4x4 lights come on for a second. So it seems to me i have power to the switch, but not to the shift motor or to the control box? There is also an LED test light on the computer, and i have never gotten one to come on. Anyone have any thoughts on this? Oh and i have only tried replacement computers out of exploders out of the junk yard, non of which have worked. The new computer cost around $330 or so, so i am trying hard to avoid it. Also i have my neutral safety switch bypassed(done by last owner), so the computer thinks i am in N, and can start the truck in gear, could that cause any of this? I've been fine driving around in 2wd since i bought it in june, but it'd be kinda nice to fix the 4x4 just to have it.
1991 Ford Ranger XLT
4.0l V6
5 Spd
The computer part # is
Motorcraft F17B-7E453-AA
Thats one out of an exploder, but the one that was in my ranger when i bought it has the same number.
Evil Little Black Box
1991 Ford Ranger XLT
4.0l V6
5 Spd
The computer part # is
Motorcraft F17B-7E453-AA
Thats one out of an exploder, but the one that was in my ranger when i bought it has the same number.
Evil Little Black Box
