T-100 Broken Tachometer (1 Viewer)

[Redgrrr]

Any one else have this problem, can it be as simple as a new cable. It will work randomly then stop, then jump, then stop. I searched for a thread pertaining to this problem but didn't locate, if anyone can steer me in the right direction I would be stoked. The pickup has the 3.4, manual trans and is 4WD. Thanks in advance.

 

[40Habits]

It is not as easy as a new cable since it is electronic. I would guess it is a loose wire since it works sporadically but it could be the tach is going out aswell.

Is everything else working properly?

 

[Redgrrr]

Broken Tach

Everything else is in working order, on the dash anyways.
Thanks for the reply and the steel wheels small world Mike.

Electronic tach that sounds like a pain. I'll have to pull the cluster out and see if there is anything loose and follow the wires from there. Thanks

 

[40Habits]

I thought that might be you. I will look for the lugs and let you know. Also if you can hook up a test tach to see if it is reading it it would narrow it down to the tach itself. I can help you out with that if you need. Just let me know.

 

[MoCoNative]

Mine did that about a year an a half ago. Would just stop working, then bounce up every so often and such. I beat on the dash a few times and it would work, then it just started working and has been fine since. I never took the cluster out to see what the problem was, could have been a wire, or maybe something on the curcuit board on the back of the cluster.

I found other references on the internet at the time, no real solutions or causes that I found.