Off Topic - Wierd Shake

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Jun 22, 2017 | 01:03 AM

akblackfoot

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More Turbo

Joined: Mar 2016

Posts: 643

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Off Topic - Wierd Shake

OK I know it's not a 6.0 or even a diesel. This forum has the most people and the most knowledge so I'm hoping somebody has an idea. I had my Ford Expedition(2005) in to have rear main bearing seal, transfer case input shaft seal, etc, which included dropping the transmission. When we picked it up I noticed that it now shakes whan in Park and Neutral when at idle. The shake cycles every 2 seconds or so, shakes for 2 seconds, smooths out for 2 seconds, shakes for 2 seconds, etc. There are no codes thrown, it runs smooth in gear running at interstate speeds and in town driving. They put the scanner on it, unbolted the transmission and re torqued them, and a bunch of other stuff. They are lost. I though maybe the torque converter wasn't in balance or something but they ruled that out. Any ideas?

Jun 23, 2017 | 10:46 PM

OneCylinder

Senior User

Joined: Sep 2014

Posts: 337

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From: Jasper, Texas

That was my guess, I've seen weight tabs welded on TCs for balance. Maybe a tab was knocked off. Or maybe the TC and flexplate were balanced as a unit, but I doubt that.