Vehicle & Technical > Range Rover
speedo not working
figgy:
i have just change my tyres to235-85 -16 on my 1994 rrc tdi ,at the weekend i changed the speedo drive on the transfer box for the blue gear for 235-85- 16 ,since then i can not get a reading .it has the electric transponder on the transfer box ,is there any way to check this is working
Bowie:
Take the speedo drive out of the transfer box, and try the cable in the square, my bet is that it is too big...
I swapped the BW transfer box to an LT230 and found exactly this issue, I used the gear from the BW box in the end, which fits fine, and the speedo isn't THAT far out, and I am on 33" tyres.
TBH, going from 205 to 235 tyres makes not a lot of difference to the speedo, maybe 8% under reading...
Range Rover Blues:
It makes 10%, which coincidentally is how inacurate many LR speedos seem to be.
The electronic spped signal also goes to the cruise control, air suspension and engine ECU.
hairyasswelder:
--- Quote from: Range Rover Blues on May 20, 2010, 22:55:47 ---It makes 10%, which coincidentally is how inacurate many LR speedos seem to be.
The electronic spped signal also goes to the cruise control, air suspension and engine ECU.
--- End quote ---
I can agree with that as mine read correct according to tom tom using colway c-trax ;)
dod51e:
Mine reads 26 when Road Angel and Tomtom say 30 with 255/85/16. oddometer is out by 14.5% too (at least I have improved my mpg now| :dance:)
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