4r100 puked with no load?
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Joined: Dec 2004
Posts: 132
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From: Warrenton, Mo
4r100 puked with no load?
Today while stoped at gas station, someone yelled at me and said my truck was leaking. I looked under and found atf running from the inspection cover. We were 2 miles from home so I eased it there and let it cool, toped off tranny(about 1/2-3/4 quart), test drove, no more leak. We had just came off a 30 mile hwy trip(70-75 mph) and ran about 1 mile city to the station.I did a search and found many topics about this but all involved pulling a load or going in reverse. I was doing neither. Outside temp was about 93 degrees though. Any thougts, a new tranny is in my future isnt it?! Its OK, you can tell me.
BTW 2001 PSD 4X4 90,000 miles
BTW 2001 PSD 4X4 90,000 miles
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Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
I'd go over it with a fine tooth comb. Pull the pan (even though you can drain it through the drain plug) and check for metal and other things 
Drain the torque converter - you should still have the drain plug on the converter for 2001 I believe.
One thing I'd check is if the torque converter is going into lockup. Not being in lockup on the highway, you can generate a lot of heat that way.
Also, there is a valve that bypasses the tranny cooler - that valve might be stuck open - it's inline with the cooler lines.
Mark?
Drain the torque converter - you should still have the drain plug on the converter for 2001 I believe.
One thing I'd check is if the torque converter is going into lockup. Not being in lockup on the highway, you can generate a lot of heat that way.
Also, there is a valve that bypasses the tranny cooler - that valve might be stuck open - it's inline with the cooler lines.
Mark?
