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Old 11-17-2009, 03:10 PM
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Is this common?

So in all my trouble with starting I noticed that in the first few moments after it starts and during starting stepping on the throttle does nothing. Is this normal? I can mash the pedal to the floor and get no response for a few seconds. This is usually after a cold start when it hasn't ran for a day or two.

In my 03 f550 it doesn't do that, so thats why I was wondering.
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Old 11-17-2009, 03:12 PM
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Quote:
Originally Posted by JasonZ View Post
So in all my trouble with starting I noticed that in the first few moments after it starts and during starting stepping on the throttle does nothing. Is this normal? I can mash the pedal to the floor and get no response for a few seconds. This is usually after a cold start when it hasn't ran for a day or two.

In my 03 f550 it doesn't do that, so thats why I was wondering.
Mine is responsive at all times. I'd say it is not normal.
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Old 11-17-2009, 03:44 PM
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Never tried matting the pedal while starting,however once started,I have full response.
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Old 11-17-2009, 03:50 PM
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Mine does that too. I think it's cause of the EBPV being closed maybe. Or the computer limiting the speed of any rev during those first few seconds to keep from causing a huge temperature change.
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Old 11-17-2009, 03:57 PM
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I forgot about the EBPV..I deleted mine,might be why mine doesnt do that.
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Old 11-17-2009, 04:04 PM
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mine doesnt do that but are you saying at idle if you want to idle it up with your foot it doesnt do anything while its running for the first few seconds?
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Old 11-17-2009, 04:32 PM
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Quote:
Originally Posted by JasonZ View Post
So in all my trouble with starting I noticed that in the first few moments after it starts and during starting stepping on the throttle does nothing. Is this normal? I can mash the pedal to the floor and get no response for a few seconds. This is usually after a cold start when it hasn't ran for a day or two.

In my 03 f550 it doesn't do that, so thats why I was wondering.
Does the truck in question have alot more miles on it?

I had a 99 f-450 with 300K on it, and it did the same thing.
Ive had alot of diesel trucks, and ive always let them PURRRRRR for the first few minutes after starting. If there is no loss of power, possible just a old tired truck

BW
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Old 11-18-2009, 02:14 AM
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Originally Posted by Spinal Tap View Post
Does the truck in question have alot more miles on it?

I had a 99 f-450 with 300K on it, and it did the same thing.
Ive had alot of diesel trucks, and ive always let them PURRRRRR for the first few minutes after starting. If there is no loss of power, possible just a old tired truck

BW
yeah 180k compared to 40k

I wouldnt be concerned but I think it may have something to do with my starting issue.
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Old 11-18-2009, 03:05 AM
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it's probably the ebpv.. totally different truck when they are engaged.
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Old 11-18-2009, 05:18 AM
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Totally non responsive isn't normal but sluggish and under powered certainly is. If yours is not responding at all check the TPS on the gas pedal, sometimes spraying them with some wd/40 makes a big difference, if not you need to change the whole assembly, around $125 IIRC.

NCH
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