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Ok guys here goes, I have a 1991 F150 4X4 with the 302. I drive it and the transmission gets hot hot and spits fluid out of the front seal. It even hit the cross exhausts and caught on fire last time. I had the trans rebuilt and a new torque converter and it still does it, had 2 auxiliary trans coolers put on in front of the radiator, and it still does it. I can run for 30 mins or so on the highway and it will puke fluid out the front seal. Towing or not towing does the same thing. Tires are stock, the entire truck is stock, has 97,000 on the odometer. The trans guy can't figure it out and I am going nuts. Hoping someone here has a clue or some ideas. Thanks in advance.
I would suspect you have a crushed trans oil cooler line. I would remove my oil cooler hoses from the transmission and blow shop air through the system to confirm there's no restrictions. Is your trans oil cooler going through the radiator cooler also?
Woops. Type-o in my previous comment. "Shop air". Did you check to see if your radiator trans cooler was plugged before adding more cooler? I have 1 small air to fluid cooler (no radiator cooler) on my 7.3idi e4od and the only time I see it gets above 200 degrees is if I'm climbing dirt roads in 4wd doing 10mph.
I will for sure check the radiator cooler an the cooler lines tonight. The 2 aux coolers are new and are the "plate" style, supposed to be good quality. I really appreciate your help, any conversation sure helps me get back on track to thinking about different things rather than being stuck on one thing.
I think when you dig into it, you'll find a crushed steel cooler tube, a kinked rubber hose, or a clogged radiator cooler. Just gotta test them with shop air to see where the restriction is at.
the 302 didnt come with an E4OD unless you swapped it in
SHould be a AODE
but restricted cooler LINES could be the issue. Is your end tank still in use? And if you have a blockage at the beginning of the circuit to the coolers, no amount of plate cooling will fix temps.
It is an E4od, the trans guy told me it was at least. I bought the truck from the original owner and he did not say anything about a trans swap, was told it was all original. Not sure what you mean by "end tank" ... I am going to check all cooler lines and coolers for any resistance. Thanks for the input.
It is an E4od, the trans guy told me it was at least. I bought the truck from the original owner and he did not say anything about a trans swap, was told it was all original. Not sure what you mean by "end tank" ... I am going to check all cooler lines and coolers for any resistance. Thanks for the input.
"End tank" is just another word for what I call the "radiator cooler". Technically, the correct term is "transmission fluid cooler" but that's kinda confusing because the external mounted heat exchangers are also transmission fluid coolers.
It is an E4od, the trans guy told me it was at least. I bought the truck from the original owner and he did not say anything about a trans swap, was told it was all original. Not sure what you mean by "end tank" ... I am going to check all cooler lines and coolers for any resistance. Thanks for the input.
Can you send a picture of your door jamb sticker that has a bunch of ford info on it, like tire pressure, size, axle, trans, engine etc.
Use a whole can of cooler cleaner to back flush and blow out the cooler lines and coolers
The trans shop should have done that during the rebuild and converter replacement
Used to see our trans man at the dealer stake those seals in, they pop out once in a while
the 302 didnt come with an E4OD unless you swapped it in
You better go back and check your reference data. Plenty of 302/5L engine trucks and Broncos came with an E4OD from the factory. There were also plenty of AODs as well. That's why we point out to verify which transmission the vehicle has.[/QUOTE]
Originally Posted by AuroraGirl
SHould be a AODE
Trucks never got the AODE. In mid-1994 (or so) they got the updated version, 4R70W with the 5L engine only. But the same shuffling happened so you will also find E4ODs. Seems like real rhyme or reason.
Originally Posted by AuroraGirl
but restricted cooler LINES could be the issue. Is your end tank still in use? And if you have a blockage at the beginning of the circuit to the coolers, no amount of plate cooling will fix temps.
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1991 E4od problems
