Cant get trans codes on my obs!

[trackspeeder]

Can't the dealer flash it for obdII?


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Yes, they still do this. The dealer can pull the codes too.

 

[Desert Diesel Dog]

"shifts hard"

VACUME MODULATOR PROBLEM ???

In the past, I have had a few automatic transmissions that weren't shifting right and I changed the ‘VACUME MODULATOR’. They shifted fine after that.

It is very easy to change… it just attaches from the outside. The outside part is round and roughly 1 ½ inches in diameter.

Also… these Modulators are not very expensive… maybe still less than $20 these days. [I think I only paid about $12 & $16 a long time ago]

I am certainly NOT an expert with automatics. Your transmission might not even have a Vacuum Modulator. BUT… you might want to check into this. IF… this is the problem, it might be an ‘easy fix’.

 

[79jasper]

I don't think the E40D has a vacuum modulator.
Unconfirmed, but I've heard bad map or clogged ebp tube/bad sensor can cause hard shifting. But again, it's just what I've heard.

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[fordbrother95]

I don't think the E40D has a vacuum modulator.
Unconfirmed, but I've heard bad map or clogged ebp tube/bad sensor can cause hard shifting. But again, it's just what I've heard.

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Now my truck as of right now has a map sensor code in the ecm, would it be worth it to try changing mine out?

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[79jasper]

I sure would.
I don't think it's that expensive anyways.


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[fordbrother95]

Yeah 35 at napa priced one the other day just didnt know if it was worth getting or not thank you i will go ahead with one!

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