no overdrive?

[Nhaz]

And for my secondary problem ( incase someone read my first problem about auto hubs =>)

Last week my Overdrive on my 1992 ranger xlt automatic 4.0 decided to stop working.

it slipped in and out of the overdrive a few times and then never went back to OD. the tranny seems to work fine otherwise.

 

[Bent Bolt]

Could be any of the following,

O/D solenoid and/or wiring / PCM
valve body
VSS
O/D servo
O/D band
vacuum modulator
vacuum line to mod.
shift cable
kick down cable.

 

[Bruce]

What Bentbolt said...

 

[Nhaz]

Tonight I replaced the automatic hubs with some manuals I pulled from a yard. I honestly can't tell you who made them the labels are gone.

But that's not the point of this post =>.

While driving home the OD started to function again.

After sitting in the nice warm shop for about 3 hours while I replaced the rear brakes and the auto hubs with the manuals. ( its been a cold winter and its been minus 20-30C for the last month) damn I wish that global warming would hurry it up.

Yes I am a Canadian. but there's no way in hell your going to get me to work on the ground in minus 30. That's just asking for frost bite in under 10 minutes.

Anyways. since the OD started to work again. does anyone have a better idea whats going on?

 

[LittleHorse]

those fluids can make some huge changes in viscosity at low temps, and electrical parts can have problems functioning. It's entirely possible that it's temperature related. Keep driving it and pay attention to what the temperature is outside when the OD isn't working, and whether the behavior improves as the engine warms up. It will take a bit longer to warm up the transmission fluid than it will the oil.

 

[Nhaz]

Tonight the temp dropped to minus 14C. The O/D started to slip in and out while I was driving down the highway tonight.

Its supposed to drop down to minus 25 overnight with a wind chill of minus 30. If the O/D fails to work at all tomorrow morning.

Do I just change the oil in the transmission? Ive driven manual transmission hondas for the last decade I wouldn't know if the transmission oil was bad or not if you poured it on me.