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Rapidly losing transmission fluid from 1993 f150 out the inspection hole/front cover of bell housing. Started when I was going uphill at about 50 mph. Had truck towed home. Started truck in driveway after cooling down and in about 15 seconds was still pouring out fluid. Thinking truck overheated and blew the pump seal. Truck does NOT have a transmission cooler. What's my first course of action to find this problem?
The first course of action is to remove the trans and tear it down to see what failed.
When you say it doesn't have a trans cooler, do you mean an auxiliary trans cooler out front? Or it doesn't even have a cooler in the radiator? An automatic trans can't survive without any cooler. It must have cooling.
The first course of action is to remove the trans and tear it down to see what failed.
When you say it doesn't have a trans cooler, do you mean an auxiliary trans cooler out front? Or it doesn't even have a cooler in the radiator? An automatic trans can't survive without any cooler. It must have cooling.
Truck doesn't have an auxiliary cooler, it does have the regular radiator cooler. I heard that it was a common complaint on the E4OD transmission that if it overheats it spews fluid past the seal, but then it runs fine when its cool. Could my cooling lines or radiator be plugged causing the overheating condition??? That doesn't seem to be the problem since it leaks when its cool too. Could the torque converter be cracked or the torque converter drain plug be loose??? Just thinking out loud here...Trying to avoid removing the transmission...but I'll do it if I have to.
Well, you will have to remove the cover on the bottom to remove it anyway so I guess you could look there first but no getting around pulling the tranny, it sucks but such is life!
Was the trans front seal or front pump replaced recently?
Common problem is that the bushing in the front pump can cover the oil drain back, and that 'extra oil' will press out the front seal.
Tips:
- make sure bushing has drain hole in correct location, and is installed the correct way around
- install new front pump bushing
- use loctite around front seal when installed into pump housing
- use small screws to hold front seal, small holes at edge of front seal, and into pump(wish I had pictures)
WWHITE:
Thanks for the reply. No, neither has been replaced recently. The truck has been running perfectly. The bushing replacement from the pictures you sent seems complicated. I'm a reasonable mechanic and am going to pull the tranny myself but do you recommend I take it to a shop to check out what might need to be done to fix it??? Is the bushing the same as the seal? Sorry for the dumb question...
Some have been able to remove/replace the bushing without removing front pump. I had the pleasure of rebuilding the whole trans myself, first time. Yes, complicated, very step-by-step process.
Busing is different than seal.
Once you take Torque converter out, it should be obvious what the leak is from. My guess, is the seal has completely popped out.
Once you have old seal out, you can inspect the bushing. Make sure busing is located in correct place, sometimes they move in/out and or rotate. Just make sure the drain back hole is not plugged.
Bushing and seal are different.
First see if you can determine the issue, if you cannot, post back here.
Oh, before pulling trans, pull out the round rubber at bottom of bell housing, turn engine until you see the torque converter drain plug screw.
Make sure it has not come out.
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LOSING TRANSMISSION FLUID
