Paul M
Junior Member
- Joined
- Sep 8, 2023
- Posts
- 6
- Reaction score
- 4
- Location
- Colorado
- Ram Year
- 2010 2500 HD Laramie
- Engine
- 6.7L L6 turbodiesel OHV 24-valve
- Posted this as an 'answer' under another related Thread but thought it would be good to offer it as a new thread in case others have seen this problem and spent hours chasing electrical gremlins -
Fuel Gauge started dropping quickly while driving on a long trip...as if I had a leak. It then went to 'E' and all the fuel indicators went wonky. Next fuel stop was 40 miles away...hyper-miled but the 34g tank only took 14 gallons. Figured the trouble was a failing sending unit (pump was clearly working fine as zero hiccups in motor operation or power, so NOT the onboard TIPM pump relay). Replaced the Pump/Sending unit...original was actually in excellent working order but worth doing at 269K miles. Checked the sending unit signal from the tank to the TIPM...all good. (Beyond that is Ram Bus so not easy for shadetree's to check signal to gauge..aka- not a traceable wire signal that I'm aware of.)
Sent the TIPM to GoECM thinking an internal component went bad...but all good (save for a minor repair...which GoECM refunded $195 of the $295 repair cost...exceptional service). Gauge Check showed all servo's working....so - scratching head - what else could it be? Pulled the Cluster (easy-peasy) and sent it off to Circuit Board Medics. They charge $199 to go thru the entire Cluster w/ repairs plus shipping (do the round-trip FedEx Gnd upfront with order...not expensive). Mentioned in my report to them it might be the Fuel Gauge servo or a PCB component based on failure symptoms because tyhe rest of the system was working to spec. A 1-Day repair turn-around after receipt. Yep...the Fuel Gauge servo failed. Reinstalled and the Fuel Gauge is working correctly.
Fuel Gauge started dropping quickly while driving on a long trip...as if I had a leak. It then went to 'E' and all the fuel indicators went wonky. Next fuel stop was 40 miles away...hyper-miled but the 34g tank only took 14 gallons. Figured the trouble was a failing sending unit (pump was clearly working fine as zero hiccups in motor operation or power, so NOT the onboard TIPM pump relay). Replaced the Pump/Sending unit...original was actually in excellent working order but worth doing at 269K miles. Checked the sending unit signal from the tank to the TIPM...all good. (Beyond that is Ram Bus so not easy for shadetree's to check signal to gauge..aka- not a traceable wire signal that I'm aware of.)
Sent the TIPM to GoECM thinking an internal component went bad...but all good (save for a minor repair...which GoECM refunded $195 of the $295 repair cost...exceptional service). Gauge Check showed all servo's working....so - scratching head - what else could it be? Pulled the Cluster (easy-peasy) and sent it off to Circuit Board Medics. They charge $199 to go thru the entire Cluster w/ repairs plus shipping (do the round-trip FedEx Gnd upfront with order...not expensive). Mentioned in my report to them it might be the Fuel Gauge servo or a PCB component based on failure symptoms because tyhe rest of the system was working to spec. A 1-Day repair turn-around after receipt. Yep...the Fuel Gauge servo failed. Reinstalled and the Fuel Gauge is working correctly.
