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1 20th August 09:09
mellowed
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Posts: 1
Default C6 vs. E4OD?


My E4OD in a '92 Bronco with a 5.8L, that also pulled a travel trailer
for 3 years lasted for 173,000 miles before a rebuild. I've no
complaints.

: How does the E4OD compare to the C6 in dependability, etc?
: I'm looking at a 1990 E-150 with the 5.8L and E4OD tranny.
: Thanks
: Tom
:
:
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2 20th August 09:09
c. e. white
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Default C6 vs. E4OD?


Early E4OD are more likely to have a problem than a late C6. There were many
upgrades to the E4OD over the first three years of production. I think an
E4OD built after 1994 is as solid as a C6. A 1990 E4OD may be just fine, but
the odds are not as good as with a C6 of similar vintage. Any 17 year old
transmission is likely due for a rebuild soon, so the difference might be
trivial. If you do need to have the E4OD rebuilt, make sure they apply all
the upgrades.

Ed
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3 20th August 09:09
snoman
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Default C6 vs. E4OD?


Not sure why you would want one (a C6) today as a E4OD is not a bad
design and allows the use of deeper gears for less overall tranny
strain and better performance while reduced cruising RPM as well as a
locking converter for lower average tranny temps and increased MPG.
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4 20th August 09:09
cjb
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Default C6 vs. E4OD?


I agree completely. We were talking about an 89 model though, I think. The
other issue that would relate to a transmission that old is the cost of
rebuild or replacement. IIRC, a C-6 is much cheaper than an E4OD.

Having said all that, I'd much rather have a late model E-150 with an E4OD
than the 4R70W most 150's (including mine) come with.

CJB
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5 20th August 09:09
dave lee
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Default C6 vs. E4OD?


My '96 F150 4x4 Centurion with E4OD is still going, 145k miles!!
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6 20th August 09:09
snoman
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Default C6 vs. E4OD?


Sometimes newer is not better. These newer electronically controlled
trannies have more complex "clock works" with each revision and it
take less to mess them up too because of this it seems
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7 20th August 09:52
tom graham
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Default C6 vs. E4OD?


Thanks for the help, guys.
I'm gonna go for this van with the E4OD, since it's in such nice condition,
50K original miles, and has the 351, etc.
I have driven trucks & vans with the C6 for years, and realize it's
virtually indestructible, but the choice of available 91 & before vans in
decent shape is sparse, and I don't like the 92+ body.
And I definitely don't want the 5.0 with the AOD.
Wish me luck!
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8 20th August 09:52
c. e. white
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Default C6 vs. E4OD?


I've owned two Fords with E4ODs - a 1992 F150 and a 1997 Expedition. I had
problems with the '92 twice. When the truck had less than 50K miles, the
transmission decided to dump fluid out through the front seal. My mechanic
told me to let the transmission cool off and refill it with new oil. It
worked fine for another 45K miles or so. Earlier this year I let my son use
the truck. In less than a week, it failed. It would only go forward. It
appeared that there was an internal fault, since it wanted to go forward
even in neutral. I decided to sell the truck. A local guy bought it and I
believe it cost around $1000 to have the transmission fixed. My 1997
Expedition was still going strong when I traded it off with 147,000 miles.
The E4OD in the Expedition never had a single problem. I did change the ATF
in both vehicles every 25,000 miles..

Ed
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9 20th August 09:52
snoman
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Default C6 vs. E4OD?


I would blame your son not the E4OD for the failure. ALso I would
install a aux cooler because heat is trannies biggest enemy as stock
cooling is marginal at best and you venting of fluid was likely for
overheating not a seal because when a seal fails, it does not start
working again.
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10 20th August 09:52
c. e. white
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Default C6 vs. E4OD?


So exactly what could my son do to a transmission to cause it to fail? He
wasn't towing anything and the truck was hardly a hot rod. My mechanic said
it was unlikely it was his fault. I did not actually talk to the shop that
repaired the transmission, but it is my understanding that an internal
bearing failed.

As for fluid puking out the front seal - I am not the only one to have this
problem. Apparently for that vintage E4OD this was a know condition. It
seems that under certain conditions when the fluid got really hot, the
internal relief valve would fail to operate and excessive pressure would
build up, forcing fluid past the front seal. My mechanic had it happen to
three different Fords. Two of us were lucky, and the transmissions were fine
after they cooled off. The third was less fortunate, the front seal was
unseated and had to be replaced.

Ed
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