I have recently changed/rebuilt my transfer case and since the exchange, my truck stalls (most of the time) when shifting into reverse with foot on the brake and vehicle sitting still. 98 Expedition 5.4 4x4.
It is clear that it happens as the transmission engages into reverse gears and I can hear the engine start to ping a little and the RPS drop as it engages and sometimes it stalls and sometimes it will come back up to speed.
Once engaged, there is no problem with vehicle moving.
I should mention that my transfer case was removed for a couple weeks and as it was jacked up, about 1 quart of fluid slowly drained out of the rear of the transmission, because of the front being jacked up. I refilled and checked levels, all filled up now and at proper levels.
Also the battery was disconnected for that duration as well. I thought originally that the computer needed to relearn itself, but I have been driving for about a week now, so it has had plenty of time to relearn.
No check engine lights.
Any ideas on what the problem may be?
It is clear that it happens as the transmission engages into reverse gears and I can hear the engine start to ping a little and the RPS drop as it engages and sometimes it stalls and sometimes it will come back up to speed.
Once engaged, there is no problem with vehicle moving.
I should mention that my transfer case was removed for a couple weeks and as it was jacked up, about 1 quart of fluid slowly drained out of the rear of the transmission, because of the front being jacked up. I refilled and checked levels, all filled up now and at proper levels.
Also the battery was disconnected for that duration as well. I thought originally that the computer needed to relearn itself, but I have been driving for about a week now, so it has had plenty of time to relearn.
No check engine lights.
Any ideas on what the problem may be?