Anyone have a tcm go bad - Ford Powerstroke Diesel Forum
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Old 07-20-2014, 10:59 AM
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Anyone have a tcm go bad

I have a tuned and deleted 13 that has been deleted for about 15k miles. Never an issue til last week. I was installing an 8" lift kit. Did the rear, went to start my truck to move and it wouldn't. I jumped it and it started right up so I couldn't figure why the battery would die.

I go on to install front lift and my truck lost communication with the tcm and now won't even turn over. I can hear something bouncing around in the tcm. Dealer says my chip completely erased my tcm but I think a part broke off in it.

Just curious if anyone had one break or go bad.

It's only a 200 dollar part so I'll probably just pay for it per their recommendation so the ford higher ups don't come out to look at it and void my warranty but I don't want it to happen again.

Fwiw, I only used an impact for the rear suspension but needed an air hammer to drive the rivets out on the front for the 4 link. I'm wondering if the banging could have broke the part but then I think how could it, since it's not any worse than driving down a bad road
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Old 07-23-2014, 08:12 PM
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Can you post pics? I highly doubt you broke that metal module unless you struck it directly with a hammer.

Did you?
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Old 07-24-2014, 05:46 AM
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Well that was the problem. Tcm broke. I did not hit it with anything but there was definitely something broken in it. Dealer said it read completely blank.
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Old 07-24-2014, 05:49 AM
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Sounds to me like the dealer just screwed you. But its not my money so oh well.

These things just dont "break"
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Old 07-24-2014, 06:39 PM
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You must have missed where I said above it did just break. It was in front if my house working then wasn't. I have the old tcm now and there is a small electronic part that is broke off
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Old 08-18-2014, 08:05 PM
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Quote:
Originally Posted by wreedPS View Post
Sounds to me like the dealer just screwed you. But its not my money so oh well.

These things just dont "break"
You must not have much experience in this area. The engines I work on are common to "just break" an ECM. Mostly operator error from turing off a battery disconnect before the ECM can power down from the key shut off. It doesnt happen every time but usually when I get a call to a no start with no ECM communication then thats the problem. Youd be amazed how delicate the internals on all the things are, one little piece of a board screws up and they will wipe the Cal and become completely useles.

OP be happy its only $200, a Cense CM530 can set ya back $10k.
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Old 08-18-2014, 08:12 PM
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open that puppy up and take a look see
HighHP likes this.
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Old 08-18-2014, 08:17 PM
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Buddy sunk his dodge halfway up the doors this summer and flooded the interior. The 4x4 modules mounted inside the the cab at the passenger kick panel. Thing looked perfect from the outside when we found it, popped it open and was just a giant green ball of fuzz inside! Id like to see the inside of this one as well!
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Old 08-18-2014, 08:50 PM
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It looked good inside except the small electronic piece that had broken off. No water or anything. The unit was still factory sealed
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