I have an 06 F250 6.0 with 8 inches of lift with 37s. Had 4.30 gears installed about 2 weeks ago and at the same time used a Tirepaq. Driving today I was going about 70 when the speedo dropped to around 45 and then the ABS light came on. Checked for any DTCs and got none.

I then returned the Tirepaq to stock and the light didn't go out right away but it is off now. My question is whats caused the light to go on?

Thanks

 

Could be your speed sensor. Its located in the rear pumpkin on top. Pull it out and wipe off. Metal shaving from those new gears will mess it up.

 

I have a 2005 Excursion 6.0 leaking oil at Hydro Boost dealer replaced hoses and now are saying the Hydro Boost needs to be replaced. Anyone done one of these? Is is hard? Is it worth having a shop do it for $900.00?