Swishy Posted July 8, 2016 Share Posted July 8, 2016 Ok How to fix 1998 CH Mack Speedo up n died Where to look How to fix Ta cya §wishy Quote Link to comment https://www.bigmacktrucks.com/topic/45966-speedo-up-n-died/ Share on other sites More sharing options...
Keffer inc Posted July 24, 2016 Share Posted July 24, 2016 Do the miles keep counting? If they do its likely the speedometer. If the miles also stopped counting, it maybe is the speed sensor on the back of the transmission, about where the drive shaft comes out. You should have a "electronic Malfunction" light with code 4-1 (?) if I'm not mistaken. Quote Link to comment https://www.bigmacktrucks.com/topic/45966-speedo-up-n-died/#findComment-340191 Share on other sites More sharing options...
bulldog52 Posted July 24, 2016 Share Posted July 24, 2016 We have a 97 ch that does this on occasion. Sometimes it works fine and sometimes it only shows 20-30 mph. I've tried replacing the speed sensor, made sure the tone ring wasn't loose, and set the distance between the sensor and the ring and it's still acting up. Sent from my XT1565 using Tapatalk Quote Link to comment https://www.bigmacktrucks.com/topic/45966-speedo-up-n-died/#findComment-340259 Share on other sites More sharing options...
Swishy Posted July 25, 2016 Author Share Posted July 25, 2016 Thanx guys for your input it started out the distance traveled did not alter Now Zillsh No speed or distance May have to take to it with a B F Hammar ( not to Be confused with a F B Hammar) LOL cya §wishy Quote Link to comment https://www.bigmacktrucks.com/topic/45966-speedo-up-n-died/#findComment-340335 Share on other sites More sharing options...
Swishy Posted August 20, 2016 Author Share Posted August 20, 2016 Problem now solved Removed speedo take it to Mr Speedo He fits new electic motor to the distance meter A OK dun deal cya §wishy Quote Link to comment https://www.bigmacktrucks.com/topic/45966-speedo-up-n-died/#findComment-342889 Share on other sites More sharing options...
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