7.3L vibration
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Junior User
Joined: May 2007
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7.3L vibration
How much vibration on an 88 F250 with the 7.3L diesel is normal???? Mine has a pretty good vibration to it, but not as bad as my old 84 mercedes did before I adjusted the rack damper pin....Also what speed should it idle at????
Senior User
Joined: Apr 2006
Posts: 280
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From: Everywhere, USA
I don't know. My 94 factory turbo 7.3 dosen't really vabrate much. I don't have much to compare, and I think this is very subjective. Mine doesn't vibrate much more than my 5.9 Dodge did. It rattles a little more 
And I like that. LOL As for Idle speed, mine Idles about 650rpm maybe 700rpm. A little more at fast idle.
And I like that. LOL As for Idle speed, mine Idles about 650rpm maybe 700rpm. A little more at fast idle.
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
Manual tranny after the cold advance kicks off should be 650 RPM.
If I remember right the automatic should idle at 750.
There should be no vibration or shaking at idle.
If it were not for the noise, I can not tell if mine is running.
If I remember right the automatic should idle at 750.
There should be no vibration or shaking at idle.
If it were not for the noise, I can not tell if mine is running.
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