Engine RPM

[cguthrie]

What is the Engine idle supposed to be in park for a 1992 W250 with an automatic? I really need to get some manuals for this thing.



Chris

 

[Midnite]

The book says to set it at something like 850rpm, but I see no reason at all to set it that high. I've set mine to about 650 - 700rpm.



Mike

 

[dan brooks]

I had mine set at 850 RPM - with it lower I got a lot of shaking/vibration (more than the normal Cummins shake) when hot and with the AC on. The shop I went to said DC issued a service bulletin relating to the higher idle speed. Since having it bumped up I haven't had a problem.

 

[dpuckett]

I think it is supposed to be 700 or so in gear, A/C on. So 750 in park should put you in the ball park. But I do stand for correction. I had mine (now Mom's) at 750 in gear, and it made the transmission THUNK when going into gear, so I dropped it a little. DOes ok now.



Daniel

 

[cguthrie]

Hey midnite, I'll be up there in anchorage around september of next year, just have to go to Korea first. I'm gonna have learn the winter process because there is no winter in las vegas. Thanks alot everyone for replying.



BTW everyone i have a Mopar tach for sale in the classifieds



Chris