If an idm is failing what could it do? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 03-09-2010, 05:39 PM Thread Starter
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If an idm is failing what could it do?

I assume if a bad uvch wire goes bad an injector can skip at times?
So can the idm be failing and cause a low rpm skip under a load?
Not asking to diagnose an issue, but what could a failing idm do?
Can it be a low rpm unde rload skip???
what else can they do?
Odviously, not run at all.
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post #2 of 3 Old 03-10-2010, 02:13 AM Thread Starter
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bump..........

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post #3 of 3 Old 03-10-2010, 11:09 AM
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Rather generic question and I'm trying not to give a general answer. It can do all of the above. Generally, there are IDM code thrown when the pcm detects there is a possible signal issue. Run the codes with AE, NGS, or MT2500. A generic "autozone" or whatever scanner won't tell you crap.

Depending on the codes, I can help you narrow down the problem.

Most of the time, it's a UVCH issue or a engine harness issue. But to be fair, I've seen my share of dead IDM's. A buddy's truck died.. when they pulled the IDM.. it was full of water.

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