Inconsistant Idle 7.3 - Ford Powerstroke Diesel Forum
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Old 10-30-2013, 06:01 AM
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Inconsistant Idle 7.3

Hey guys, picked up my first powerstroke a couple weeks ago, 97 obs 7.3. while warming up in the morning im noticing a rough idle. It is very difficult to pick out and none of my buddys can hear it but since i listen to the truck warm up every day ive noticed it. The truck seems to run perfect while driving, no issues with that, just that it has a very slight inconsistent idle when warming up. Is this just because it is cold? (30 degrees F). Any input or things to check would be awesome thanks guys.
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Old 11-02-2013, 06:47 PM
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It could also just be normal, diesel engines naturally run a little rougher when cold, especially powerstrokes with the HEUI system.

While its running rough: is there any smoke? how long does it take to run smooth again? loss of power?

If you have a scanner check for codes, run a buzz test and go from there.
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