Tranny spewing fluid
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New User
Joined: Jun 2010
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From: Liberty Hill
Tranny spewing fluid
99 F250 tranny spews fluid when 4x4 in deep sand. ok otherwise.
not sure if tranny going bad or cooler blocked. any one with same experience? how to diagnose?
surprised when fluid spews on exhaust and catches fire. happened several times.
not sure if tranny going bad or cooler blocked. any one with same experience? how to diagnose?
surprised when fluid spews on exhaust and catches fire. happened several times.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,740
Likes: 2,669
From: SE Florida
The '99s don't have enough transmission cooling. They didn't have a transmission cooler in the radiator. If you changed the radiator for one with a transmission cooler and changed the air to oil cooler to a 6.0L cooler you probably would fix the problem.
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We have a 03 and had the same problem. where does the fluid come from?
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New User
Joined: Jun 2010
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From: Liberty Hill
i never found the specific place, but i'm pretty sure it's some kind of relief valve.
just not sure why it relieves on the exhaust which catches fire.
i think i'm going to make the suggested changes. did a little research so i think i know what to replace. just want to make sure i don't have any blocks.
just not sure why it relieves on the exhaust which catches fire.
i think i'm going to make the suggested changes. did a little research so i think i know what to replace. just want to make sure i don't have any blocks.
FTE Remembers
Joined: Jul 2005
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From: Millersville, MD
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From: Liberty Hill
so is the only place to leak out the filler tube? cause i never could locate where it leaked. only that it always spews on the exhaust and catches fire. only leaks with 4x4 in heavy sand. had truck in sand often well over 100K miles with never a problem before. never happens regular driving or towing.
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,740
Likes: 2,669
From: SE Florida
I've tested transmissions above 300°F and never had one eject fluid from the vent unless it was overfilled.
