steel_captain Posted November 2, 2020 Share Posted November 2, 2020 ex US Postal Service tractor which I won in an online auction. Was ready to bring the truck home but when I went to the auction yard and started the truck I found these two lights on. Engines seems to run fine but have not driven it at any speed on the road. I have not done the diagnostic test with the cruise control up/down switch because I did not know about that at the time I ran the truck. I do believe the speedometer is not working so likely VSS and wondering if I drive it the 160miles to get it back to my shop, am I taking any risks if it is the VSS or will I just need to live with the buzzer sounding the whole way back? Quote Link to comment Share on other sites More sharing options...
alex g Posted November 2, 2020 Share Posted November 2, 2020 Speaking from experience I have a 2000 ch 612 check the coolant level on bottom side of reservoir. When mine is low it will throw a dash light on. Electric malfunction I believe. I also had the speedo probe on output shaft of transmission. It also lit the electrical malfunction light. I'd say your safe to drive after checking fluids Quote Link to comment Share on other sites More sharing options...
steel_captain Posted November 3, 2020 Author Share Posted November 3, 2020 I just don't like seeing the "engine shutdown" light being on but I will check that fluid level as you suggest Quote Link to comment Share on other sites More sharing options...
Sanhell Posted November 6, 2020 Share Posted November 6, 2020 Mine was the speed sensor going out. Quote Link to comment Share on other sites More sharing options...
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