Slow Trans Engagement
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Senior User
Joined: Jan 2001
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Slow Trans Engagement
The auto transmission on my daughter's 92 Ranger (4.0/4WD) is real slow to engage when first started in the morning. It is parked pointed downhill on a slight grade at night. The procedure to get it into gear is usually this: let the motor warm up, put it in Drive and let it sit there for about 30 seconds, put it in Reverse for about 30 seconds and then repeat the process a few times. The truck has 72,000 miles and the ATF is full. Thanks for any help that you can provide.
'92 Ranger 4WD
'92 F150 4WD
'94 Explorer 4WD
and a '92 Jeep Wrangler to please the non-Ford neighbors!
'92 Ranger 4WD
'92 F150 4WD
'94 Explorer 4WD
and a '92 Jeep Wrangler to please the non-Ford neighbors!
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Joined: Jan 2004
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Hi, I am not sure when the the tranny was last serviced 
but a clogged up filter or gummed valvve body will act up
There is a tranny flush by KD or something like that ... I can not remember it's name but it wa in a blue/silver quart can. It does a excellent job flushing out a auto tranny. Check it out and see if it work will for you. BTW .. stop parking the truck nose down, you might catching air instead of fluid nose down ,,,
By the way, I was playing with the smiles in this reply, we are a bunch of learning wrenches
love my fords, doc
but a clogged up filter or gummed valvve body will act up
There is a tranny flush by KD or something like that ... I can not remember it's name but it wa in a blue/silver quart can. It does a excellent job flushing out a auto tranny. Check it out and see if it work will for you. BTW .. stop parking the truck nose down, you might catching air instead of fluid nose down ,,,
By the way, I was playing with the smiles in this reply, we are a bunch of learning wrenches
love my fords, doc
Last edited by docfestus51; Jan 4, 2004 at 02:56 PM.
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Another Diagnosis
Someone else just told me that it may be a bad vacuum modulator on the outsid of the transmission. This was based on the fact that the trans seems to be loosing fluid, but there are no external leaks. He said that the bad modulator allows vacuum to suck fluid into the intake manifold of the engine, thus the mysterious loss of fluid. Any thoughts on this one?
Post Fiend
Joined: Dec 2001
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From: South Jersey
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Laughing Gas
Joined: Jun 2003
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From: Chino, California
How much ATF disappears and how quickly? The modulator will indeed pass fluid into the vacuum hose. Check the vacuum hose where it connects at the manifold and see if it's wet inside.
If you are using (burning) ATF at a rate more than a dribble, you should be able to see it in your exhaust as white smoke.
Modulators are cheap. You just may get lucky on this one.
I don't remember you mentioning any loss of fluid before. You said it was full...???
If you are using (burning) ATF at a rate more than a dribble, you should be able to see it in your exhaust as white smoke.
Modulators are cheap. You just may get lucky on this one.
I don't remember you mentioning any loss of fluid before. You said it was full...???
Last edited by pops_91710; Jan 7, 2004 at 07:49 PM.
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Thread Starter
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Problem Solved
It was the vacuum modulator. The trans shop said that it is a common problem on this vintage of transmission. It needed fresh fluid and filter anyway, so the timing was great for it to go bad. Thanks for the help.
Elder User
Joined: Nov 2003
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The modulator could be goig bad. Change it and see, when you pull it and if you don't get any fluid then the port is plugged up. You'll want to do this pretty soon cause it can multiply the problems with the tranny.
