4BTranger
New Member
- Joined
- Jun 14, 2012
- Messages
- 9
- Reaction score
- 0
- Points
- 0
- Location
- Racine, WI
- Vehicle Year
- 2002
- Make / Model
- Ford
- Engine Size
- 3.9L Cummins 4bt
- Transmission
- Manual
The truck is an 02' 2wd with a 4bt. It's a runner and driver now and I have every gauge working except the tach.
When I got the truck it didn't have a motor so I am looking for some help on how the original setup worked and if I can use the original Ranger tach. The 4bt does not have a tach sensor on the harmonic balancer like the 6bt does.
From what I gather the Ranger tach operates off the ECM...but what language the tach understands is what i am trying to figure out. I can install a sender that works off a magnetic pickup on the alternator or another rotating source if I can determine what type of signal the factory tach reads. I used a dakota digital box for the speedo and I think they might have one for the tach that would work out too.
When I got the truck it didn't have a motor so I am looking for some help on how the original setup worked and if I can use the original Ranger tach. The 4bt does not have a tach sensor on the harmonic balancer like the 6bt does.
From what I gather the Ranger tach operates off the ECM...but what language the tach understands is what i am trying to figure out. I can install a sender that works off a magnetic pickup on the alternator or another rotating source if I can determine what type of signal the factory tach reads. I used a dakota digital box for the speedo and I think they might have one for the tach that would work out too.