High idle?
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Laughing Gas
Joined: Feb 2006
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High idle?
Is there a set amount of time before the high idle is supposed to come on? Mine takes about 60-90 seconds before it does. Also i remember reading that it doesn't come back on unless you turn the key off and back on? Mine came on yesterday after i drove it a little ways and put it in park and let it idle, normal? Also is there a way to test the ebpv and see if it is working right? Can i move the rod coming out of the pedistal by hand to see if it will open close? Thanks
Post Fiend
Joined: Jun 2006
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From: White Mnt's,New Hampshire
its been below 0 here and i noticed it takes a few minutes for the high idle to come on..i think it waits for the oil pressure to go up a little.i let it warm up for 15 minutes then go to the store a 1/2 mile away put it in park and go in get my coffee..when i come back out it is on high idle again..i noticed after a few minutes if the temps are not at NOT the high idle will actovate after a few minutes..my EBPV is now a brake so it doesnt come on unless i want it to...not sure how you can check to see if it s closeing other then when it go's in high idle watch the rod and see if it moves...or mark it then start the truck and see if it moves...also im not sure but i almost think you can make it move with AE....might want to ask alan about that one....
after a 40 mile trip yesterday i parked the truck let it idle cause i was early after temp came down a little the high idle came on once again...
after a 40 mile trip yesterday i parked the truck let it idle cause i was early after temp came down a little the high idle came on once again...
Last edited by ron's power stoke; Jan 21, 2007 at 07:13 AM.
Post Fiend
Joined: Jun 2006
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From: Central, Al
High Idle will come back on, The IAH is a one time shot though. Mine takes between 30 - 60 seconds depending on how cold it is.
If you have AE or a scanner capable of running a KOER (Key On Engine Running) test it will actuate it during the test you can hear and see it.
If you have AE or a scanner capable of running a KOER (Key On Engine Running) test it will actuate it during the test you can hear and see it.
Post Fiend
Joined: Jun 2004
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From: Parker, CO
Glow plugs must be off before high idle is activated. When you crank the truck, the glow plugs can run for up to 2 minutes. Once the glow plugs turn off, the cold air package kicks in. That's when the high idle, EBPV, and AIH are all activated.
If you drive the truck and park it, the high idle can kick back on if the ambient outside temp and oil temp are both low enough. A short drive might not be enough to completely warm up the truck.
As for the EBPV, you cannot move the rod by hand (unless something is wrong). Where the rod attaches to the butterfly valve is directly under the turbine housing. That rod will push out, turning the valve towards the passenger's side firewall. That's how you can tell just by looking that it is closed.
If you drive the truck and park it, the high idle can kick back on if the ambient outside temp and oil temp are both low enough. A short drive might not be enough to completely warm up the truck.
As for the EBPV, you cannot move the rod by hand (unless something is wrong). Where the rod attaches to the butterfly valve is directly under the turbine housing. That rod will push out, turning the valve towards the passenger's side firewall. That's how you can tell just by looking that it is closed.
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Laughing Gas
Joined: Feb 2006
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Thanks for the repleys. Sounds like my high idle is working right. I will have to do some checking to see if the ebpv is working right. I have been trying to fix cold start white smoke for a couple of months now without any luck. I replaced the gps and gpr about two months ago and it still smokes for about 2-5 minutes depending on temps. After sitting for 12 hours at night, 29 degrees, it smokes for about 3 minutes, leaves a huge cloud of white smoke. I am going to recheck the gps and also test the gpr with the screwdriver test. I remember reading you can check the volts of the gpr to test it? What kind of readings should i get and where should i measure it? Any other suggestions as to why i see this much smoke with new gps and gpr? It also runs like it's missing when i first start up? It starts fine, sometimes when in single digits it takes a couple extra seconds to fire up but it does. Thanks for your help, i would love to solve this.
Post Fiend
Joined: Jun 2004
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From: Parker, CO
You will never completely get rid of white smoke on very cold mornings. It's just the nature of the beast. You need heat and compression to burn fuel, and on first morning cranks, you simply don't have enough heat to make a complete burn.
The only way I can get rid of white smoke in the morning is to plug the block heater in. If I crank the truck at temps of -5 or lower without plugging in, I'll get a huge cloud of white smoke. At warmer temps it's less smoke, but it's still there. Above about 30 degrees or so and I'll get zero smoke.
If your truck is firing up at cold temps, then your glow plug system is working fine. Unfortunately, smoke is something we all have to deal with.
Something to note, the type of oil you use will also affect how your truck starts.
The only way I can get rid of white smoke in the morning is to plug the block heater in. If I crank the truck at temps of -5 or lower without plugging in, I'll get a huge cloud of white smoke. At warmer temps it's less smoke, but it's still there. Above about 30 degrees or so and I'll get zero smoke.
If your truck is firing up at cold temps, then your glow plug system is working fine. Unfortunately, smoke is something we all have to deal with.
Something to note, the type of oil you use will also affect how your truck starts.
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Laughing Gas
Joined: Feb 2006
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I'm not trying to get ride of smoke completely but it was 29 degrees the other morning and i had about 3 minutes of big cloud smoke, went for probably 150 ft across the parking lot. I thought that was more than there should be when it's that warm? I work nights and block heater isn't an option, no where to plug in. I do run rotella 5w40 synthetic for easier starts and have new batts, gpr, and gps.
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Senior User
Joined: Nov 2006
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i have read alot of people sya their truck sounds like a jet engine when the high idle activated. mine doesent sound that way but the high idle functions properly. could their be something wrong with my ebpv? what exactly is it that makes the truck make that noise?
Logistics Pro
Joined: Mar 2004
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It is the ebpv closing and restricting the exhaust flow into the downpipe. If you have the stock exhaust in place (muffler), you won't be able to hear it a whole lot. Next time the truck goes into high idle, go around to the tailpipe and listen... you should be able to hear it. It is very, very obvious with a free-flowing muffler or aftermarket exhaust or straight pipe.
New User
Joined: Jan 2007
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Where is the ebpv tube located !!!
Hey I was wondering if there is anyone out there that can tell me where this tube is located at !!! I read someone saying it is under the turbo !!! Is this true !!! And how big is this tube !!! Thanks for your guys help !!! Late !!! Fry Guy !!!
Smokin
Joined: Jun 2006
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Originally Posted by Fry Guy
Hey I was wondering if there is anyone out there that can tell me where this tube is located at !!! I read someone saying it is under the turbo !!! Is this true !!! And how big is this tube !!! Thanks for your guys help !!! Late !!! Fry Guy !!!
I'm going to bet you'll wear out your (!) key 10 times faster than the average person. 
Anyway check out this thread, Tenn01PSD gives a good explaination of where the EPBV tube is located at and how to go in and clean it out. He also posted a diagram. https://www.ford-trucks.com/forums/5...-of-power.html
Last edited by Smokin'; Jan 29, 2007 at 07:38 PM.
Smokin
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Originally Posted by KrenzyRyan
What is the high idle for? And why would the engine want to wait that amount of time before engaging the higher idle?
Not sure why it waits that specific amount of time to engage. You could test mine with a stopwatch it is so exact.
Senior User
Joined: Nov 2006
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Originally Posted by KrenzyRyan
What is the high idle for? And why would the engine want to wait that amount of time before engaging the higher idle?
