u/Countryboytn

7.3 Running Rough Diagnosis

Background: was driving a couple of days ago when I started to lose power. Engine felt like it was missing cylinders and running extremely rough. No codes, but it would crank and run, but rough.

By today, the issue had become a crank no start. I replaced the CPS with a motorcraft part and the engine cranked and fired, but something is certainly still off. It does not run smooth at all.

With the new CPS installed, I unplugged the IPR and tried to start it. This created another crank no start. I plugged that back in and unplugged the ICP. This threw a code, but the it ran, still rough, but seemingly better.

Question: I do not feel like I have found the issue. Any advice would be greatly appreciated.

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u/Countryboytn — 13 days ago