Problem With Tach on 06 Cummins ?
 

I'm having problem with the tachometer on my truck. just the other day at idel it was reading about 500 to 700 rpms( which is normal). well here lately it started wanting to run about 200 rpms idel and and at normal 60mph crusine speed its about a grain and sometimes lower. anyone have any ideas what could be the problem? by thy the wy the truck is running fine to so i don't know if its a sensor or guage problem.

Holy hard to read batman... someone will chime in with a suggestion for ya.

I would say that you either have a connection problem somewhere or a faulty RPM gauge.

This is a problem on almost all 06's... Nothing a new cluster won't fix... If your truck is still under warranty get it to the dealer fast!

I bought my truck 2nd hand and it has about 87,ooo but not hurt but i know it has the 100 thousand powertrain warrenty on it. would it fall under that warrenty?

Mine is doing the same damn thing

check the service bulletin for service techs might be a recall

thanks guy. also it isn't going to hurt the truck performance other than not knowing the rpm's i'm running?

Nah, the truck is smart enough not to be past redline long if your hammering on it.

who would i check with to see if there a recall besides the dealer?

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also where would i check for the service bulletin at? is it on dodge's web page or this site?