Question Running on 4 cylinders??

kirkyoung

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Yesterday I changed all the glow plugs on my 2000 7.3. I also changed my fuel filter. Now my truck sounds and drives like its running on 4 cylinders, it idles rough and has no acceleration at idle and when driving. Just to check I reinstalled the old fuel filter, it made no differance???:

Thanks for the help, it was a loose connection under the valve cover
 
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Crumm

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Sounds like a bad connection on one of the under-valve cover harnesses especially since you just had them unplugged.
 

Paul H

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If you have a shorted wire in the under cover connector , The IDM will shut that bank off to protect itself.

So yess it will run on 4 (just one bank or the other but should also show a CEL
 

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