Automatic Trans Trouble When Cold

[Illini_Rob]

Well I got my transfer box problem solved with my new old truck and now a transmission problem is starting to pop up.

1992 Ranger extended cab, 4.0 V6, Automatic, 4x4

The problem:
It's been in the 20's here in Illinois and my transmission has trouble shifting sometimes. The engine runs like a clock so I'm sure the trouble isn't there. The truck coasts just fine so I don't think it's a brake/drivetrain problem. I know I'm in 2wd mode because when parked the forward transaxle turns freely by hand.
When I start the truck up and immediately start driving the truck won't shift into higher gears. I end up doing 25mph at about 3000rpm. After about 5 minutes it will shift -- although sometimes abruptly. If I warm up the car for 10 minutes it will shift right off so it seems to be temperature related. Also, when driving at say 60 on the highway, what rpms should I expect with this engine/trans?

Any ideas??

Thanks in advance.

 

[Wicked_Sludge]

make sure the fluid is topped off (check with the trans warm, engine idling, in park). check the condition of the fluid...if its dark or burnt smelling, it needs a flush. it probably wouldnt hurt to throw a trans. filter at it either if you dont know the last time it was done.

cruising RPM will depend on rear axle gear ratio and tire size.

 

[2manyfords]

Sticky governor behaves like that.

My A4LD was doing that so I removed and cleaned the governor and it corrected the problem for a short time until it started sticking again.
Eventually the TC bushing failed and took the front seal out.
Something is likely comming apart in your tranny causing fine particles to cause sticking.

 

[Bent Bolt]

Governor valve is sticking. The big question is why is it sticking. Usually because there is a bushing coming apart in the trans.