losing rpm

[tnvolfan]

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?

[super_stroke]

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.

[tnvolfan]

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 ?

[super_stroke]

sorry man, totaly miss read that. you got me, i dont whats wrong, but it aint normal. what mods have you done if any?

[tnvolfan]

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?

[Diesel Nut]

What RPM are you idling at in Park?

[tnvolfan]

I,ll get back yo you later diesel nut. thanks

[mschn99]

what RPM ranges are you talking about and is the idle smooth in both park and drive????

[99Smokin73Stroker]

My psd did not seem to lose any rpm when I shifted into any "load" gear.....it sounded the same.....

[tnvolfan]

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.