1. How do you diagnois the electronic hydrlic assembly equiped with ABS brake booster on the vehicle as to why it is on all the time when the key is turned on (hums when engine is running, do no hear the hydralic lift sound)? The ABS/Brake light on the dash comes on often and sometimes stays on for a long time. Thank you.
2.Does the speed sensor effect the transmission shifting on an automatic? It is miss shifting... drops from 4th to 3rd and/or won't to from 1st to 2nd. Which one of the speed sensors... output speed sensor or the input turbine speed sensor? Thank you.