rpm pointer

[osegundo]

My truck originally did not show rpm so I bought one from the junk yard and installed it. My truck had the harness for it, everything works except the rpm pointer!! Can anyone help, do I need some sort of sensor to go with it!!?

[Rev_D21]

Check out mrecoolgar's transformation thread, he did the swap and detailed it in there. He's very knowledgeable on the pre-1993 update Hardbody stuff.

[RT22]

By pointer do you mean the needle on the gauge? I know many get brittle and break with heat and age. Not sure I understand the question.

[osegundo]

I got a tach from the junkyard and its not working!! Everything except the tach is working!! It looks way better than my old one so imma keep!!

[mrecoolgar]

The tach may be bad.
The same happened to me.
I swapped in a known working tach and it worked.
And I put the bad one in the other truck and it didn't work.

[osegundo]

That sucks, o well!! It looks way better than the old one so I'm keeping anyways!! Ill see when I hit the junkyard again to get another one!!