TCIL light
#1
TCIL light
I have searched on here and found a lot of good info on flashing tcil lights.
I put new tires all the way around on my 99 F150 screw 4x4, and on the way home from the tire shop, tcil started flashing.
Went from 245/75/16s to 285/75/16s.
Could this tire size change be the cause of the tcil flashing?
I plan to get the codes asap, but thought I would ask this question first.
Truck has 141000 miles on it. Only owned it for 4 weeks now.
Thanks
Tony
I put new tires all the way around on my 99 F150 screw 4x4, and on the way home from the tire shop, tcil started flashing.
Went from 245/75/16s to 285/75/16s.
Could this tire size change be the cause of the tcil flashing?
I plan to get the codes asap, but thought I would ask this question first.
Truck has 141000 miles on it. Only owned it for 4 weeks now.
Thanks
Tony
#2
#4
The PCM doesn't know what size tires are on the truck. Reprogramming the tire size is only to correct the speedometer and the odometer. It won't affect the shifting. Changing to larger tires can't make the TCIL blink. Disconnecting the battery will erase the code, but it won't fix what's wrong. The light will come on again if the problem is still there.
You need to take it to a shop that can read the codes. Most independent shops and all Ford dealers can do it. The auto parts stores that read codes free can't read Ford transmission codes. Don't go there.
You need to take it to a shop that can read the codes. Most independent shops and all Ford dealers can do it. The auto parts stores that read codes free can't read Ford transmission codes. Don't go there.