idle speed incresing
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Senior User
Joined: Apr 2005
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From: NC
idle speed incresing
today i noticed my idle speed has gone up only when its hot, its up at 900rpms.
it cold idles at 850 for a few kicks down to 750. 20 mins later, i get to work and its at 900, what would cause this???????????????/
it cold idles at 850 for a few kicks down to 750. 20 mins later, i get to work and its at 900, what would cause this???????????????/
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Senior User
Joined: Apr 2005
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From: NC
it runs great no major problems with it i gone 3000 miles since last oil change and hasent consumed a drop, smokes very litte on startup and when i stand on it,
but i have began to wounder if it was the IP going
but i have began to wounder if it was the IP going
Posting Guru
Joined: May 2004
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From: Prince George, B.C.
So far thats the only thing I have really thought of, I'm sure there are others that could give you a better answer. It could also be getting air when it warms up but that usually makes it run a bit louder, idle rough or somthing similar.
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New User
Joined: Mar 2005
Posts: 13
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From: Ohio/Florida
high idle possibility
Have you considered your air conditioner?
When compressor starts, idle usually increases somewhat. Not sure how many RPMs.
Just a thought
When compressor starts, idle usually increases somewhat. Not sure how many RPMs.
Just a thought
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Posting Guru
Joined: May 2004
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From: Prince George, B.C.
Check the glow plugs, and see if any of the injectors are wet around the return line, as well as for any other possible air leaks before sayint the IP is causing the hard starting, then if no other probs are found we can get back to that one.
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Senior User
Joined: Apr 2005
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From: NC
i just replaced ths glow plugs, the entire fuel system is dry except for that pressure sending unit thing on the fuel filter housing has a little leakage i am jona replace the lift pump tommarow and wile im at it jona check all the injectors, i have notaced the high idle is not dependet on tempature 40 - 70 makes no diffrence
Post Fiend
Joined: Nov 2004
Posts: 5,638
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From: Manitoba
Visit this web page and look for Filter/housing air leaks.........scroll down to IDI
http://www.intellidog.com/dieselmann/home.html
http://www.intellidog.com/dieselmann/home.html
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dan66tampa
1961 - 1966 F-100 & Larger F-Series Trucks
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Feb 28, 2005 09:34 AM
