E4OD Bad Torque Converter Symptoms? - Ford Truck Enthusiasts Forums



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E4OD Bad Torque Converter Symptoms?

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Old 04-01-2013, 06:55 PM
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Cool E4OD Bad Torque Converter Symptoms?

I recently replaced the E4OD transmission in my 1992 truck with one from a 1994 with 302 engine. The replaced one was working really good other than few issues with a defective new MLPS sensor that I replaced the transmission was smooth and shifting.

Few days ago I noticed a "whirling" noise, This happens not all the time but it's usually noticeable after a stop and when in first gear and goes away when shifting to second gear. It's not loud but enough for me to notice. Most of the times is after I've been driving for 15 to 30 minutes after the engine/transmission warms up. The fluid level is normal and looks fine as far as color and smell.

Today along with the whirling noise I noticed in a hill stop the transmission was not engaged it did after I give gas but felt kind of "draggy" like I have to put more gas to go on. When arrived at my driveway the reverse engaged but it feels like I'm pulling a heavy trailer.

So far I have CEL neither a blinking overdrive light indicator. Just frustrated to have this new problem to figure. My hope is that this relates to the torque converter that came with the transmission and didn't change.

Few minutes ago I started the truck and it's acting normal and engaging without need for gas to do so.

I'll appreciate any comments to figure this ting out and some way to fix it..Thanks!
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Old 04-01-2013, 07:06 PM
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Quote:
Originally Posted by hreyesg View Post

So far I have CEL neither a blinking overdrive light indicator. Just frustrated to have this new problem to figure.
I am confused....

Regardless if you have a CEL on, check for codes...........
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Old 04-01-2013, 07:08 PM
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Sorry....! Mean to say No CEL
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Old 04-01-2013, 07:26 PM
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Sorry....! Mean to say No CEL
Thanks for the clarification...check for codes regardless of the CEL status.
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Old 04-02-2013, 01:27 PM
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Retrieved Codes KOEO

I did the KOEO test and this are the codes I'm getting:

116 Engine Coolant (ECT) sensor out of range - ECT
636 Transmission Oil Temperature (TOT) sensor out of range - Transmissions
114 IAT sensor out of range - IAT
628 Excessive converter clutch slippage - Transmissions

Code 628 is what I'm suspecting the cause of the problem but having trouble trying to figure. Does this code mean the converter is bad?

Thanks For Your help....
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Old 04-02-2013, 01:36 PM
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Most of those codes are indicating that you didn't warm the truck up operating temperature before pulling the codes..

I suggest you warm it up and try again..

Since E4OD's are completely computer controlled, you will need to attend to ANY codes present, even the most simple DTC code can make the system go into limp mode... Then the strange things start to happen.....
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Old 04-02-2013, 01:38 PM
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My Bad....Warming Up

Yeah....should know better...will do....thanks!
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Old 04-02-2013, 01:58 PM
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KOEO Fresh Codes, Warmed up this time

The only code present is 628 "Excessive converter clutch slippage - Transmissions"

The other codes I got the first time are all gone. They came in a first wave of codes. Now I had a 111, thereafter the only one was the 628

Now trying to figure this out....Thanks for the help
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Old 04-02-2013, 04:05 PM
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The ATF level has to be checked with the transmission iddling in Park or Neutral (special safety measures required of course) and the truck at operating temperature, I would suggest a short drive. If the level is ok then the TC definitely needs to be replaced.
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Old 04-02-2013, 04:12 PM
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Quote:
Originally Posted by Encho View Post
The ATF level has to be checked with the transmission iddling in Park or Neutral (special safety measures required of course) and the truck at operating temperature, I would suggest a short drive. If the level is ok then the TC definitely needs to be replaced.
Thanks Encho, will do later this evening and post results....
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Old 04-02-2013, 05:20 PM
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I hope it's just down some qts. of ATF, that would be the least expensive cause to the slippage.
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Old 04-02-2013, 07:26 PM
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ATF Level Normal

Warmed up engine, drove a little checked the fluid level on transmission and it's normal, within the crosshatched area. When shift on reverse feels a bit hard than used to. Guess the next will be to find a torque converter.

I'm wondering if would make sense to use the torque converter that I have from the old failed transmission. It's not the original. This torque converter it's painted in blue with a sticker "2001" I'm guessing that's when the previous owner replaced the original converter. Looks a lot like the ones Napa sells.

The one on the truck now should be the original from the 1994 truck it came from with about 118K miles.

The failed transmission had quite a bit of shavings/dust and clutch pieces and don't know if those contaminants could've affected the torque converter.

Any toughs will be appreciated

Thanks for reading!
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Old 04-02-2013, 07:44 PM
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Quote:
Originally Posted by hreyesg View Post

The failed transmission had quite a bit of shavings/dust and clutch pieces and don't know if those contaminants could've affected the torque converter.
Yes, they can and will affect the torque converter. Any time a transmission has a failure like that where there are bits and pieces of bearing/bushing/clutch material present, everything in contact with the transmission oil should be considered contaminated. Torque converter, oil cooler lines, and the coolers themselves are now full of metal shavings which will go back into the replacement transmission and cause it to fail.

Junk that old converter, or give it up for a core charge on a new or rebuilt one.

Did you flush the cooler lines before installing the new transmission?

Ford recommends that the actual cooler(s) themselves be replaced, which for the radiator cooler means replacing the radiator. I know some folks try to flush them but you have to be absolutely certain to get all the old junk out. If it were me, before I even connected the cooler lines to the new trans I would have flushed the lines out, bypassed the radiator cooler, and installed a new heavy duty cooler behind the grill.
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Old 04-02-2013, 08:09 PM
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Quote:
Originally Posted by dixie460 View Post
Did you flush the cooler lines before installing the new transmission?

Ford recommends that the actual cooler(s) themselves be replaced, which for the radiator cooler means replacing the radiator. I know some folks try to flush them but you have to be absolutely certain to get all the old junk out. If it were me, before I even connected the cooler lines to the new trans I would have flushed the lines out, bypassed the radiator cooler, and installed a new heavy duty cooler behind the grill.
Hey dixie460 thanks! and YES, we flushed the cooler lines quite well with fresh fluid and compressed air before connecting the lines to the newer transmission.

I'll junk the old torque or use it for the core on the new one.

I'm wondering if you guys could point me where to look for the new torque converter. I really don't need a high performance part but something decent. Checked Napa online and they want $299 for one.

This will take me some time (budget) but will get it fixed sometime...Even though had several issues with this truck I like it very much and plan to keep it for a long time.

Thanks Again.....
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Old 07-19-2016, 12:45 AM
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Did replacing your torque converter fix ur problem? I'm having the same issue with my 94, it's in the shop now getting a converter...I really hope it's not gonna be a waste of money
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