rtr6646 Report post Posted September 21, 2018 I have a 1998 Monaco Dip with a ISB gen II 275 hp that the tach quit working it will work for about 3 secs after start up and the drops to 0 any ideas Thanks Share this post Link to post Share on other sites
desertdeals69 Report post Posted September 21, 2018 Check wiring. The sensor is in the bell housing, it counts the teeth on the ring gear. Share this post Link to post Share on other sites
rtr6646 Report post Posted September 21, 2018 Hello desertdeals69 Thanks ill checkout out I had now idea where the sending unit was Thnks Share this post Link to post Share on other sites
f433921 Report post Posted September 22, 2018 My Tach quit on my 2004 Holiday Rambler with Cummins ISC engine. Found connector under the dash was pulled apart. Just chase the tach lead from the back of the tack until you find the connection. On my rig the Tack lead was a grey wire. Jim Share this post Link to post Share on other sites
rtr6646 Report post Posted September 22, 2018 Hello F433921 Thanks ill check that out, thanks for the info Share this post Link to post Share on other sites
