high idle 99.5 truck - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 03-12-2009, 05:22 PM Thread Starter
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high idle 99.5 truck

is it normal for a stock truck to idle up after a few minutes of run time and there is no 10.k mod on the truck i put a brand new icp and a cps on the truck when i got it took it to the dealer
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post #2 of 6 Old 03-12-2009, 05:23 PM
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yes it will idle up when its cold, it will also shut the EBPV to warm up faster


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but at work I drive
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post #3 of 6 Old 03-12-2009, 05:30 PM Thread Starter
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what is the ebpv
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post #4 of 6 Old 03-12-2009, 05:36 PM
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exhuast back pressure valve, it sounds like a wsshing noise that goes away when you get it gas. It holds hot air from going out the exhuast.


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but at work I drive
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7 Duramaxes
1 GMC Kodiak Ambulance

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post #5 of 6 Old 03-12-2009, 05:58 PM Thread Starter
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i also noticed that the truck sounds like it shuts off at 40mph when you slow down is that normal and it is a auto
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post #6 of 6 Old 03-13-2009, 07:28 AM
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Quote:
Originally Posted by tnfastbusa View Post
i also noticed that the truck sounds like it shuts off at 40mph when you slow down is that normal and it is a auto
You mean that it just drop to idle, or the engine actually quits running? A Powerstroke is about 95% electronic and 5% mechanical. When you are crusing down the road and let off, there is a sensor on the go pedal called the IVS (idle validation switch) that will return the truck to idle. There is also a TPS on the go pedal that sends a signal to the PCM telling it how hard you're pushing the skinny pedal.

97 F350 CCLB 4x4 PSD

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