1st gen Tach with 4.0?


Hahnsb2

Hahnsb2

15+ Year Member

TRS Banner 2010-2011
Joined
Aug 8, 2007
Messages
4,416
Points
3,101
Age
37
City
Battle Ground WA
Vehicle Year
88-95
Transmission
Manual
My stock tach reads considerably higher than it should with this 4.0, does anyone know if there is some sort of resistor I can add in or something else than would make it read correctly? I don't want an aftermarket tach since I have a factory one.
 
What model is the 4.0 out of, and which wire do you have the tach connected to?:)shady
 
94 4.0 out of a sploder sport. Tan/Yellow wire in the 4.0 harness is connected to a DarkGreen/Yellow wire in the B2 harness.
 
The EDIS (and waste spark) is going to make it read wrong. 1st gens didn't have either of those. They tripped off the coil primary wire.
 
That makes sense, is there anyting I can do to make it work? I have wide assorment of electronic parts like resitors and such, at work.
 
can you get the sploder tach to fit behind your instument panel with the old school face on it?
 
Nah, they're way different. **** it, I'll buy an aftermarket, will any aftermarket tach work or will the EDIS and waste spark mess with that too?
 
The Tach wire from my EDIS is connected to the tach wire on my 1987 Ranger

I swapped a 1993 4.0 Explorer engine into my '87.

My tach works perfectly and I didn't do anything other than connect it.

AD
 
You must log in or register to reply here.

Sponsored Ad

TRS Events & Gatherings

Where We Were in 2025 – The Ranger Station

Latest posts

Featured Rangers

Want to see your truck here? Share your photos and details in the forum.

TRS Latest Video

Official TRS Merchandise

Follow TRS On Instagram

Latest Album Photos

IMG_4690.JPEG
IMG_4689.JPEG
IMG_4688.JPEG
IMG_4679.JPEG
IMG_4656.JPEG
IMG_4625.JPEG
IMG_4562.JPEG
IMG_4561.JPEG
IMG_4560.JPEG
IMG_4559.JPEG
IMG_4558.JPEG
IMG_4445.JPEG

Product Suggestions

Back
Top