Loping idle issue help! - Ford Powerstroke Diesel Forum
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Old 09-01-2013, 10:28 PM
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Loping idle issue help!

Ok so I've been chasing this issue for a while now and I'm trying to get a for sure answer on what's wrong. It lopes on start up weather it's warmed up or cold it also does it when your driving but only if you pres the peddle a little bit but if you are half to full throttle it won't do it. The weird thing is the truck is not down on power has great oil pressure. I checked the EBP sencer by unplugging it then starting the truck and still the same. My only thought is that the IDM could be bad or the cam sencer is bad. Any other input on what could cause this problem would greatly be appreciated!
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Old 09-02-2013, 06:59 AM
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Welcome!

Don't know if you have a 5-speed or automatic (filling out a signature line with truck and modification info is very helpful), but if you have an automatic does it do it if you start it in neutral? Cheers!
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Old 09-02-2013, 09:35 AM
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Quote:
Originally Posted by Patrick Feeley View Post
Welcome!

Don't know if you have a 5-speed or automatic (filling out a signature line with truck and modification info is very helpful), but if you have an automatic does it do it if you start it in neutral? Cheers!
It's actually my work truck, a rollback 5speed totally stock it has 243,000 miles on it
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Old 09-02-2013, 07:50 PM
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Try a CPS (get it from Ford or IH) since that is a cheap try. Otherwise, how's the fuel pressure at idle? Cheers!
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Old 09-02-2013, 08:12 PM
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Wouldn't a lope all of the time point to an oil problem or injectors?

I would either buy AE or have someone use a scan tool on it to see what the ICP and HPOP pressure is...
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