OfficialSmudge
New Member
- Joined
- January 16, 2017
- Messages
- 5
- Reaction score
- 2
- Year, Model & Trim Level
- 2007 Explorer XLT
I have a 2007 Ford Explorer RWD 4.0L v6. This problem started very suddenly. Here's the description of my problems right now...
I cannot use reverse. Shifting in to 'R' will jerk the vehicle back just slightly. It feels like it just barely catches if I really rev it up, but hardly enough to move.
The same thing happens if I try to take off in 'D'. However, I can shift in to 1st, 2nd, or 3rd to take off (and they all work correctly). Once the vehicle is moving fast enough for 4th gear, I can shift it in to 'D' but O/D must be OFF. Once it's moving faster yet, I can turn O/D ON. If I slow down too much (say <25mph) it will come out of gear, and I must manually select a lower gear again.
The problems started very subtly and intermittent at first, but over the course of over a month, it had come to this state.
I tried putting in Lucas Oil Transmission Fix with no luck. No engine codes, unless I really let it slip, but then it only throws P1700 (I think that's right), I guess indicating that the input speed and output speed are mismatched given the targeted gear.
I've heard of this exact problem from another user (describing it as "no reverse or auto function"), but they didn't really mention what exactly was broken. I know I'll probably have to get this rebuilt by a professional, but I thirst for knowledge. I understand this transmission somewhat well, but I don't know what could cause this. It absolutely boggles me that it will go into 1st perfectly if I shift manually, but it will not move if I try to take off in D. I originally though that was an electrical issue because the problem got much worse the day a lot of ice melted under the truck. Please let me know what you think, I'd love to know what wrong with this thing. Thanks!
I cannot use reverse. Shifting in to 'R' will jerk the vehicle back just slightly. It feels like it just barely catches if I really rev it up, but hardly enough to move.
The same thing happens if I try to take off in 'D'. However, I can shift in to 1st, 2nd, or 3rd to take off (and they all work correctly). Once the vehicle is moving fast enough for 4th gear, I can shift it in to 'D' but O/D must be OFF. Once it's moving faster yet, I can turn O/D ON. If I slow down too much (say <25mph) it will come out of gear, and I must manually select a lower gear again.
The problems started very subtly and intermittent at first, but over the course of over a month, it had come to this state.
I tried putting in Lucas Oil Transmission Fix with no luck. No engine codes, unless I really let it slip, but then it only throws P1700 (I think that's right), I guess indicating that the input speed and output speed are mismatched given the targeted gear.
I've heard of this exact problem from another user (describing it as "no reverse or auto function"), but they didn't really mention what exactly was broken. I know I'll probably have to get this rebuilt by a professional, but I thirst for knowledge. I understand this transmission somewhat well, but I don't know what could cause this. It absolutely boggles me that it will go into 1st perfectly if I shift manually, but it will not move if I try to take off in D. I originally though that was an electrical issue because the problem got much worse the day a lot of ice melted under the truck. Please let me know what you think, I'd love to know what wrong with this thing. Thanks!