jay1028
Well-Known Member
- Joined
- August 6, 2004
- Messages
- 145
- Reaction score
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- City, State
- N.E Florida
- Year, Model & Trim Level
- 1996 XLT V8
After reading about the cause of the odometer malfunction, I ordered the replacement worm gear and now the odometer is working again. The old worm gear is made from some kind of black plastic that does not hold up with time. It gradually begins to fall apart until the odometer no longer functions. The new one is made from Delrin and should last the life of the vehicle.
The motor that drives the odometer is removed by twisting it clockwise while carefully prying up the clear plastic fingers holding it in place with a small screwdriver. Do not break those fingers. They only have to move enough for the small flange on the motor to slip out. Disconnect small white connecter from circuit board. It pulls strait out.
After removing the old gear, clean the motor shaft and press on the new gear. It will not slip on easy. I tapped it with a small hammer. You need to seat it on the motor shaft until there is .035" between the motor body and the bottom of the gear. This will ensure that the gear teeth fully mesh with it mating gear in the odometer assembly. The mating gear is black in color and will most likely have remnants, of the old worm gear, still lodged in some of it's teeth. I used some q-tips and alcohol to clean up the black gear of the bits of gear material and some old grease. Make sure there are no fibers from the q-tip left in there. I applied some plastic safe lubricant with a tooth pick to the new worm gear. Place the motor and new gear into the assembly and twist counter clockwise until it clicks into place. Connect white connector to circuit board.
This thread illustrates very we
ll how to remove the instrument cluster
Indiglo gauges install, or HOW TO REMOVE CLUSTER!! ( warning 22 pictures )
While the cluster is out, you may want to replace all the 194 bulbs.
Good source for the new worm gear is ebay seller koonee, $10.99.
The motor that drives the odometer is removed by twisting it clockwise while carefully prying up the clear plastic fingers holding it in place with a small screwdriver. Do not break those fingers. They only have to move enough for the small flange on the motor to slip out. Disconnect small white connecter from circuit board. It pulls strait out.
After removing the old gear, clean the motor shaft and press on the new gear. It will not slip on easy. I tapped it with a small hammer. You need to seat it on the motor shaft until there is .035" between the motor body and the bottom of the gear. This will ensure that the gear teeth fully mesh with it mating gear in the odometer assembly. The mating gear is black in color and will most likely have remnants, of the old worm gear, still lodged in some of it's teeth. I used some q-tips and alcohol to clean up the black gear of the bits of gear material and some old grease. Make sure there are no fibers from the q-tip left in there. I applied some plastic safe lubricant with a tooth pick to the new worm gear. Place the motor and new gear into the assembly and twist counter clockwise until it clicks into place. Connect white connector to circuit board.
This thread illustrates very we
Indiglo gauges install, or HOW TO REMOVE CLUSTER!! ( warning 22 pictures )
While the cluster is out, you may want to replace all the 194 bulbs.
Good source for the new worm gear is ebay seller koonee, $10.99.