Overdrive quit working
Lead Driver
Joined: Sep 2003
Posts: 7,017
Likes: 209
From: SoCal
When you get to the state where you think it should shift into OD, can you move the gear lever from OD to 3rd and see if the engine changes speed? IF so, it may be going into OD, but not locking the torque converter.
On both my vans (4liter engines and A4LD) the TC locks up at around 45-50 mph if engine is not heavily loaded. If your exhaust is loud enough, you can hear that happen as a decrease in engine speed. Otherwise, you need a tachometer to see that.
On both my vans (4liter engines and A4LD) the TC locks up at around 45-50 mph if engine is not heavily loaded. If your exhaust is loud enough, you can hear that happen as a decrease in engine speed. Otherwise, you need a tachometer to see that.
Thread
Thread Starter
Forum
Replies
Last Post
Churchwarden
1997 - 2006 Expedition & Navigator
3
Nov 9, 2015 10:07 AM
Skydivelout
1999 - 2003 7.3L Power Stroke Diesel
9
Sep 20, 2015 10:25 PM
DieselMechanic87
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
1
Jun 10, 2014 12:01 PM
Nathan
Clutch, Transmission, Differential, Axle & Transfer Case
4
Aug 9, 2005 12:06 AM
