Wiring diagram for 1990 2.9

doblefcd · Oct 3, 2011

I am starting a 4.0 engine swap into my 1990 B2. As suggested elsewhere at TRS I obtained the Chilton's manuals for both vehicles, but there it shows no wiring diagram for the 1990 2.9. Chilton's only shows diagrams for the 2.3 and 4.0 for 1990. Do I assume the 2.9 engine wiring and the 4.0 are identical?

Psychopete · Oct 3, 2011

Take it back if you can and get your money back. this is what you want:

http://cgi.ebay.com/ebaymotors/1990-Ford-Ranger-Bronco-II-Truck-Electrical-Manual-EVTM-/370541656112?pt=Motors_Manuals_Literature&hash=item564600f830

country0001 · Oct 3, 2011

I used the Haynes manual and it was in there.

There wasnt much splicing involved.

doblefcd · Oct 4, 2011

Thanks for the reply. I looked at the Haynes manual today and it has exactly what the Chilton manual shows, only 2.3L and 4.0L diagrams for 1990. For now I will assume that the 2.9L in 1990 is the same as the 2.9L in 1989 or the 4.0L in 1990, while I look for a definitive answer. I have a retired electrical engineer friend who seems to actually enjoy studying wiring diagrams, so I am certain he can figure it out for me anyway. Thanks.

doblefcd · Oct 19, 2011

Evtsm

I picked up the Ford 1990 Ranger/Bronco II Electrical & Vacuum Trouble Shooting Manual as recommended by Psychopete, and it is the answer. I liked it so well that I have ordered one for the 1993 Explorer donor vehicle too. Now with the help of my retired electrical engineer buddy, who can read the diagrams like "Dime Novels", I am ready for the swap. Thanks Psychopete for the help.

Wiring diagram for 1990 2.9

doblefcd

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Psychopete

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country0001

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doblefcd

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