E40D Question
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Senior User
Joined: May 2005
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From: Southwest Ohio
E40D Question
Ive got a 97 F350 RC 4X4 7.3L E40D w/ 116K Miles.
I was wondering ig there is any good way to inspect the tranny for wear/tear. I'd like to know what kind of shape its in. Any way to look at the clutch plates, etc.? Thanks
I was wondering ig there is any good way to inspect the tranny for wear/tear. I'd like to know what kind of shape its in. Any way to look at the clutch plates, etc.? Thanks
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CANT REALLY LOOK AT THE CLUTCH PLATES, ONLY THING YOU CAN REALLY DO IS pull the pan and check your magnet in the pan to see how much gunk is on it, alsoinspect the fluid and transmiision filter for any metal filings not caught by the magnet.
Its safe to say you can have some silty looking mud on the magnet
Its safe to say you can have some silty looking mud on the magnet
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From: Naola, VA
TJ, I have noticed that my E4OD has certain shift characteristics. I was wondering if they were inherent to the tranny. It will bump around 45-50 mph and it shifts into OD I think too soon (around 35-40). Does this sound normal to you? Ron McCafferty
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Originally Posted by strokenalong
TJ, I have noticed that my E4OD has certain shift characteristics. I was wondering if they were inherent to the tranny. It will bump around 45-50 mph and it shifts into OD I think too soon (around 35-40). Does this sound normal to you? Ron McCafferty
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Joined: May 2005
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From: Southwest Ohio
The speed at which your Overdrive kicks in depends on your rear end. i have a 4.10 and OD shifts at about 35-37 mph. If you have a 3.55 OD will kick in around 42 mph.
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Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
ron that sounds pretty normal. i know on mine an many others 3rd and the converter locking are very close together like 3 mph apart at 35 to 40 then OD kicks in shortly after depending on how much throttle you are giving it. it also depends on your computer code. mines a tee5 other have slightly different shifts
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Originally Posted by lossscause
Ive got a 97 F350 RC 4X4 7.3L E40D w/ 116K Miles.
I was wondering ig there is any good way to inspect the tranny for wear/tear. I'd like to know what kind of shape its in. Any way to look at the clutch plates, etc.? Thanks
I was wondering ig there is any good way to inspect the tranny for wear/tear. I'd like to know what kind of shape its in. Any way to look at the clutch plates, etc.? Thanks
Anyone else?
Tuned
Joined: Aug 2006
Posts: 327
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From: Runnells, Iowa
You can do a few clutch pack pressure leakage tests, it requires removing the valvebody though. I did that test on my 95 F250 and found that the overrunning clutch piston has a leaking seal. Ill wait till she blows and then gut it and make it bullet proof. Has your od light started blinking on and off yet? My overdrive kicks in at 37 mph if Im not on the throttle hard.
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Senior User
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From: Southwest Ohio
Actually for about $12 I can take an oil sample to our CAT dealer and they'll tell me all i need to know about the "wear levels", which i have been meaning to do. Also, The OD light did blink on me once, about a year ago, right after i installed the sonnax kit, so i had it checked and it was the "torque converter overheat" code. i uninstalled the sonnax and havent had a problem since.