losing rpm - Ford Powerstroke Diesel Forum

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post #1 of 15 Old 08-02-2006, 08:52 PM Thread Starter
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Question losing rpm

Don't know wether this is a engine or thanny problem but when I shift from drive to park I lose about 1 to 200 rpm enough to notice in the sound and see on the tach. Just wonder if it might be the converter or nothing to worry about?
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post #2 of 15 Old 08-02-2006, 08:59 PM
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that is normal. your putting a load on the engine with it in drive and the brake on. my truck does it, my other truck (a gasser) does it and my mom's car does it. totally normal.

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post #3 of 15 Old 08-02-2006, 09:16 PM Thread Starter
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losing rpm

If I'm putting a load on it shouldn't it be losing rpms going from park to drive? I'm gain rpms when I shift from park to drive ?
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post #4 of 15 Old 08-02-2006, 09:31 PM
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sorry man, totaly miss read that. you got me, i dont whats wrong, but it aint normal. what mods have you done if any?

Bill
2000 f-250 4x4 ex cab 7.3 psd. diablo programmer, TS 6 pos. , 4" exhaust turbo back w/ 5" stacks, wicked wheel, HX cross over, zoodad mod, 6637 mod, boost pyro & trany on the a pilliar. 315/75/16 bfg mt's,.superwinch hub's, 6.0 trans cooler, banks trans command. sky jacker leveling kit


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post #5 of 15 Old 08-02-2006, 09:53 PM Thread Starter
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losing rps

Thanks for the reply. No mods that I know of, just got this truck 2 wks ago w/155k on it 1 owner that i have talked to and he said he had not done anything to it. It is on its third tranny. and thought it might have something to do w/the converter?
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post #6 of 15 Old 08-03-2006, 12:39 AM
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What RPM are you idling at in Park?
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post #7 of 15 Old 08-03-2006, 04:57 AM Thread Starter
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losing rpm

I,ll get back yo you later diesel nut. thanks
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post #8 of 15 Old 08-03-2006, 06:27 AM
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what RPM ranges are you talking about and is the idle smooth in both park and drive????
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post #9 of 15 Old 08-03-2006, 08:25 AM
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My psd did not seem to lose any rpm when I shifted into any "load" gear.....it sounded the same.....

2005 F350 XLT FX4. 2.5" leveling kit, 03 turbo, 4" MBRP Turbo-back, 58v FICM, SCT X4, Irate Diesel coolant filter
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post #10 of 15 Old 08-03-2006, 12:38 PM Thread Starter
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losing rpm

I'm back. In park rpm is about 600, shift into drive and it goes goes up to about 700-750 then shift to neutral or park and it dropd to around 500 then comes back to around 600.
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