V8 conversion-tachometer ?

[Craig_S]

I'm building a V8 B2 and need to know what to do with my tach. I have a 97 Explorer donor vehicle if that helps but when it comes to electronics I'm done. (Luckily this B2 body had a 5.0 in it before, but the previous owner kept the instrument cluster for his next build).

Thanks for any suggestions.

Craig

 

[RonD]

The 1996-2003 Ranger and Explorer Tachs could do 4cyl, V6 or V8

This is assuming you are using the 1997 cluster and wiring

If NOT then read this thread: https://www.explorerforum.com/forums/threads/tachometer-mod-v6-to-v8-swap.174682/

Below only applies to 1995 and up

The instrument cluster will have 3 connectors, 10 pin, 12 pin and 16 pin

slot 8 on the 10 pin connector will have a Ground wire, this is for V6 tach
You need to remove this pin, small screwdriver is used to release it from connector, you need the pin/wire intact

You will move this pin/wire to slot 16 on the 16 pin connector, which will be open, so you just need to push the pin/wire in and it will lock in place

And that's it

So the cluster is not 4cyl, V6 or V8, the Vehicles WIRING is 4cyl, V6 or V8, the 3 connectors wiring

Only Pin 16 of the 16-pin grounded ==> V8
Only Pin 8 of the 10-pin grounded ==> V6
Neither grounded ==> 4cyl

So you have to remove pin 8 ground, not just "add" a ground to pin 16

 

[Craig_S]

Thank you.