We just bought a 2000 42m from CPR, it came from C.C.P. in Atlanta. The RPM display doesnt work on the back of the truck. has anyone else had this problem?? Could it be something simple?

A simple question like that call schwing at 16514290999 they are on the ball, and can diagnose fast.

ASK FOR HARRY HE CAN HOOK YOU UP, CCP YOU MEAN COASTAL CAROLINA

Nah, couldn't be Coastal Carolina, we don't have any pumps in ATL. And don't bother with calling Schwing, if it's a mack truck, call them...but if it's a Freightliner, don't bother...their customer service sucks beyond belief.

But at the back of the truck means to me the pump.

So schwing would have the answer, unless Mack is smarter in the States than Canada hehe. No pun we like not love Mack.

If you bought it from CPR, you should call Paul LeMay or Jerry Anderson at CPR & they can also give you the straight scoop.

I'm certain you've had plenty of responses.  It's more than lkely something simple.  And CPR likely has replacements/sources thereof.  Easily fixed if it's not wiring.  CPR would be the best place to contact; their extroardinarily helpful and thorough, and stand behind what they sell.