Speedo

[bob harris]

occasional loss of speedo indication, with flashing OD light on column ?
also occasionl "ABS" light on ? any ideas why please as am new to this truck.
Have to say tho that after some years driving 1996 Chev K2500HD 4 X 4 its a pleasure !

[countryraised]

speedo gets its signal from the ABS, speed sensor feeds into ABS system then to dash, OD light I'm not sure.

[DJM]

SOunds like rear Abs sensor. It's on top of the rear differential take it out clean the crap off it see if that works if not buy a new sensor about $25-$50 depending where you buy it at kind of a common issue. there are 2 other VSS (Vehicle Speed Sensors) on top of the tranny the Input shaft speed sensor and output shaft speed sensor but 99.9% of the time its the one on the Diff.

[bob harris]

tku very much, cheers from down under

[DJM]

No problem glad to help