Welcome Visitor! Please take a few seconds and Uly The Hermit
Active Member
- Joined
- Apr 18, 2009
- Messages
- 36
- Vehicle Year
- 1999
- Transmission
- Automatic
Hi. I have a 1999 Ranger with the 3.0L and, as far as I can tell, the 4R44E auto trans. It seems to work fine in R, 1, or 2 but if it's in D there is a long delay before it shifts and sometimes it feels like it's slipping. It does not seem to matter if O/D is on or off. Sometimes it feels like it's engaged then it won't go forward, then suddenly it engages and lurches.
The IAC was acting up and if disconnected there was no difference. In order to get it to keep running I turned the idle stop screw. From what I have read this was a bad move. Meanwhile, I cleaned the IAC valve and it seems to work OK now but I don't know how to test it beyond the fact that it now keeps the engine running at idle. Someone suggested that I check the voltage of the TPS (throttle position sensor) and adjust it if necessary. Well, the voltage was about .74 and there does not seem to be any adjustment on the TPS mounting screws. Am I supposed to be adjusting it somewhere else? The information I read here: http://www.fordfuelinjection.com/?p=30 said the voltage should be between .6 and 1.0 so that's within the correct range. However an old post I read here said it should be adjusted to .96 volts but the only way I can figure out to do that is to turn the idle stop screw. What is the correct procedure for this adjustment? If and when I do adjust the TPS how to I set the idle stop screw position?
Also, is it possible that the transmission needs a band adjustment? I found the specs (sort of) here at the Ranger Station but it only says how many turns for each band and does not give the torque settings or identify which is which. While we're at it, what's the best type of torque wrench to use for band adjustments? Is a "click" type OK or not accurate enough?
Anything else that might cause my problem?
I have two old Explorers with the A4LD trans and If I knew this 4R44E was a modified A4LD I think I would have bought something else as I have found the A4LD to be rather expensive to keep going. I bought this truck used very recently and it looks like the trans fluid is new. It has about 150K miles on it.
Thanks.
The IAC was acting up and if disconnected there was no difference. In order to get it to keep running I turned the idle stop screw. From what I have read this was a bad move. Meanwhile, I cleaned the IAC valve and it seems to work OK now but I don't know how to test it beyond the fact that it now keeps the engine running at idle. Someone suggested that I check the voltage of the TPS (throttle position sensor) and adjust it if necessary. Well, the voltage was about .74 and there does not seem to be any adjustment on the TPS mounting screws. Am I supposed to be adjusting it somewhere else? The information I read here: http://www.fordfuelinjection.com/?p=30 said the voltage should be between .6 and 1.0 so that's within the correct range. However an old post I read here said it should be adjusted to .96 volts but the only way I can figure out to do that is to turn the idle stop screw. What is the correct procedure for this adjustment? If and when I do adjust the TPS how to I set the idle stop screw position?
Also, is it possible that the transmission needs a band adjustment? I found the specs (sort of) here at the Ranger Station but it only says how many turns for each band and does not give the torque settings or identify which is which. While we're at it, what's the best type of torque wrench to use for band adjustments? Is a "click" type OK or not accurate enough?
Anything else that might cause my problem?
I have two old Explorers with the A4LD trans and If I knew this 4R44E was a modified A4LD I think I would have bought something else as I have found the A4LD to be rather expensive to keep going. I bought this truck used very recently and it looks like the trans fluid is new. It has about 150K miles on it.
Thanks.
