Dodge Cummins Diesel Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
1,971 Posts
Discussion Starter #1
Last nite my girlfriend and I were driving around looking for a new house and when i pulled up to a stop my rpm's dropped below 500 but the truck was running fine, oil pressure fine, not running hot, so i was really confused got home shut the truck off unhooked the batteries and waited 15 mins, Also forgot that never once did I get a CEL code or any kinda code... Well rehooked the batteries and still doing same thing so then i got to thinking and I checked my RPM's on my edge and it said that the truck was running at 745-755 at idle but the factory rpm tach was still showing 450-500.... so the truck is running fine... BUT how do i recalibrate the RPM tach to give the actual RPM read out.....Thanks
 

·
If you aint 1st..Ure LAST
Joined
·
2,301 Posts
dealer? if it was me and with that new of a truck i would try them.
 
1 - 4 of 4 Posts
Top