1995 Buick LeSabre Q&A
1995 Buick LeSabre Question: not shifting into overdrive
Very rarely does our car shift into overdrive, when it does, it doesn't stay there long. Can you tell me what might be causing this? Is it the speed sensor? If so, where is the speed sensor located? - Visitor
it sounds like the clutches are worn out due to the age of the car. there is a solenoid in the valve body but a shop with a scan tool can verify whether it is working or not. Roy - mastertech6371
trouble code p0740 p0753 p0758 will not downshift to first automatic or go into overdrive. can manualy put in first to take off then shift to drive and trany will shift but not to overdrive. whe...