E40d slipping gears?

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Jan 4, 2024 | 08:52 PM

#16

Nick05

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Cross-Country

Joined: Apr 2022

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Quote:

Originally Posted by Mark Kovalsky

That is not limp mode. That is a failure. It could be low fluid, a loose or missing internal filter, or a worn out transmission.

Are there any codes stored in the PCM?

my scan port dosen't work is there a way to manually pull codes heard somthing about counting check engine light flashing not really sure

Jan 4, 2024 | 09:19 PM

#17

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,732

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From: SE Florida

The port is the way to pull codes. On earlier models you could count the check engine light flashes, but that won't work on your truck.

Jan 4, 2024 | 11:30 PM

#18

Nick05

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Cross-Country

Joined: Apr 2022

Posts: 80

Likes: 5

Quote:

Originally Posted by Mark Kovalsky

The port is the way to pull codes. On earlier models you could count the check engine light flashes, but that won't work on your truck.

gotcha thank you

Jan 7, 2024 | 12:46 PM

#19

Nick05

Thread Starter

Cross-Country

Joined: Apr 2022

Posts: 80

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Quote:

Originally Posted by Mark Kovalsky

The port is the way to pull codes. On earlier models you could count the check engine light flashes, but that won't work on your truck.

Idk if youll still see this but i went ahead and removed my psom to visually see if anything looks wrong and i dont think so. Can you tell by looking at it? Also wires look fine to me to the plug and harness. Another thing I belive my Rabs module is going bad and read somewhere that it could mess with the signal from the vss could that help maybe? I'm gonna unplug it to see