Tranny question
#1
Tranny question
2000 2.5 liter automatic ford ranger. Once in awhile when taking off from a stop it will either get stuck in 1st gear and or feels like neutral. You have to let off the gas to get it to act normal. The tranny was replaced last year and only has maybe 7000 miles on it that a shop goes thru and replaces worn out parts in a tranny. Anyone have any ideas?
#2
RF Veteran
iTrader: (1)
You probably have a 4R44E transmission in a 2000 2.5l, a 4-speed auto
There are 2 ways to rebuild an automatic, soft parts only(clutches, servos, and bands), and the right-way, soft and hard parts( pump, clutch, OD drum).
Soft parts rebuilds last about 12-18months, enough for rebuilders warranty to expire, lol.
How is Reverse?
Is there a delay?
The 4R44E is a full electronic controlled trans, inside there are solenoids the computer activates and deactivates to shift gears as RPMs and engine load(throttle position) changes.
If computer is trying to shift to 2nd but can't then that will usually set a transmission trouble code, this usually won't turn on the CEL(check engine light) because driver would notice the problem so no need to turn on CEL.
Some auto parts stores can read transmission trouble codes, some can't, any trans shop can.
I would see if there are any codes set as first step.
If there is any warranty left on trans I would follow up on that quickly.
Older automatics shifted strictly on pressure building up and newer ones can often be put in "limp mode" to mimic that type of shifting.
Unplugging the MAF sensor often puts computer in limp mode, shifting will be harsher but might tell you if it is a solenoid acting up or computer, it is almost always the solenoid or a seal on valve body in the trans.
Automatics run on pressure, Reverse requires the highest pressure so if there is a pressure issue starting it is first noticed in Reverse.
There are 2 ways to rebuild an automatic, soft parts only(clutches, servos, and bands), and the right-way, soft and hard parts( pump, clutch, OD drum).
Soft parts rebuilds last about 12-18months, enough for rebuilders warranty to expire, lol.
How is Reverse?
Is there a delay?
The 4R44E is a full electronic controlled trans, inside there are solenoids the computer activates and deactivates to shift gears as RPMs and engine load(throttle position) changes.
If computer is trying to shift to 2nd but can't then that will usually set a transmission trouble code, this usually won't turn on the CEL(check engine light) because driver would notice the problem so no need to turn on CEL.
Some auto parts stores can read transmission trouble codes, some can't, any trans shop can.
I would see if there are any codes set as first step.
If there is any warranty left on trans I would follow up on that quickly.
Older automatics shifted strictly on pressure building up and newer ones can often be put in "limp mode" to mimic that type of shifting.
Unplugging the MAF sensor often puts computer in limp mode, shifting will be harsher but might tell you if it is a solenoid acting up or computer, it is almost always the solenoid or a seal on valve body in the trans.
Automatics run on pressure, Reverse requires the highest pressure so if there is a pressure issue starting it is first noticed in Reverse.
#3
#4
RF Veteran
iTrader: (1)
If speed sensor is not working or showing the wrong speed then yes that could be one issue.
But not the delay or hard shifts
You can also try Lucas automatic trans treatment, it softens and swells seals which can bring back some lost pressure.
But if you are keeping it then a good rebuild should be saved up for.
Also a $50-$100 trans cooler will extend the life of any automatic by a few years.
Heat kills solenoids and seals, but an automatic also needs heated ATF to work correctly, which is why factory cooler is in the rad.
But as trans gets older it will heat up a bit more and that's when problems start, the 2nd trans cooler slows that heating up down.
So not just for pulling trailers, it is required then, but in my opinion it is required period, lol.
But not the delay or hard shifts
You can also try Lucas automatic trans treatment, it softens and swells seals which can bring back some lost pressure.
But if you are keeping it then a good rebuild should be saved up for.
Also a $50-$100 trans cooler will extend the life of any automatic by a few years.
Heat kills solenoids and seals, but an automatic also needs heated ATF to work correctly, which is why factory cooler is in the rad.
But as trans gets older it will heat up a bit more and that's when problems start, the 2nd trans cooler slows that heating up down.
So not just for pulling trailers, it is required then, but in my opinion it is required period, lol.
#5
Thanks for the advice. I put the new sensor on and had autozone read for any codes. No codes logged but I am not 100% positive if there reader would see any codes. Sort of hard to troublshoot when it doesn't do it all the time. Fluid level is fine. Will definately keep if it keeps it up a rebuild in mind.
#7
#8
RF Veteran
iTrader: (1)
Not quite enough information.
4cyl gas engine(lima) or 4cyl diesel?
Assuming 4WD?
If you have a 4-speed then it would be a Toyo Kogyo 4-speed
You would need to replace it with a Toyo Kogyo 5-speed
These both have detachable bell housings, which you would need to swap if 5-speed wasn't from a 4cyl Lima engine.
Also the 5-speed would need to be from a 4WD.
I think the 5-speed is a little longer that the 4-speed which means changing drive shafts, front and back.
Although not 100% sure on length difference.
If you want to go with an M5OD-R1, 1988 and up, then you would need one from a 4cyl engine 4WD, and it is for sure a different length, but it is the best 5-speed Rangers ever had
4cyl gas engine(lima) or 4cyl diesel?
Assuming 4WD?
If you have a 4-speed then it would be a Toyo Kogyo 4-speed
You would need to replace it with a Toyo Kogyo 5-speed
These both have detachable bell housings, which you would need to swap if 5-speed wasn't from a 4cyl Lima engine.
Also the 5-speed would need to be from a 4WD.
I think the 5-speed is a little longer that the 4-speed which means changing drive shafts, front and back.
Although not 100% sure on length difference.
If you want to go with an M5OD-R1, 1988 and up, then you would need one from a 4cyl engine 4WD, and it is for sure a different length, but it is the best 5-speed Rangers ever had
#9
The tranny lost reverse and drive today. The fluid is full and clean, no burnt smell to it either. A couple days ago it started slipping pretty bad for my son, when he was coasting to a stop and then go to give it gas then it would slip and he would have to stop and put it in park and then it would go. I think the front sprag is gone. I haven't done anything yet to it, I will give the shop who put a rebuilt tranny in it 18 months ago and had it back for tranny slipping and it wouldn't do it for them. So I will give them s chance to stand behind there work. Probably 10,000 miles on this tranny by us.
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