2000 6 speed hesitates and runs rough when cold - Ford Powerstroke Diesel Forum
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Old 02-14-2011, 03:47 PM
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2000 6 speed hesitates and runs rough when cold

just picked up another 2000 only its a 6 speed. for one its got new glow plugs in it and a good relay but won't start well under 30 degrees. Second of all, when it does fire, it idles and runs real rough and has a bad hesitation. once up to operating temp it will run like a champ. i had my injectors tested and all are good, any ideas?
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Old 02-16-2011, 08:02 AM
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any thoughts?
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Old 02-16-2011, 08:07 AM
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how many miles? need to run a compression test more than likely
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Old 02-16-2011, 01:02 PM
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240k i didn't think these needed a rebuild till about 400k. do you think it could be the icp?
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Old 02-16-2011, 06:21 PM
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I would have guessed injectors but you said all is good there
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Old 03-12-2011, 03:35 PM
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bump! found i had 2 bad injectors and changed them still same problem........ still runs rough when warming up and still starts hard even when its 40 out. I do have oil in my icp sensor....an relations?
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Old 03-12-2011, 05:05 PM
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Could be. What oil you run. Mine starts very slow and runs like garbage with reg oil, with synthetic it is 10x better when cold.
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Old 03-15-2011, 06:57 AM
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Im sure you dont want to hear it but replacing two injectors when theyre all going bad is not gonna solve the problem. Luckily I have friends at a ford dealer and when i had the same problems i put all new injectors in and had the old ones tested. They thought 2-3 where weak on the truck but all 8 failed the bench/flow test. If you plug the truck in over night does it fire right up and idle better than if you start it cold? If so you can be pretty sure its injectors. Even if your glow plugs arent working your motor should start at 40 degrees and idle fine after few seconds if your injectors are healthy. Throw a scanner on it and make sure your HPOP is putting out the necessary pressure and then buy 6 more injectors. While your in there do a compression test! I thought my motor was junk and found out i have 460 compression on all 8 cylinders! That was a good day!!!
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Old 03-15-2011, 08:36 AM
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Just a quick check but can be a real one. Make sure no fuel in coolant which would mean cracked injector sleeve. Cause i have been their.
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