it exercises the turbo while in park. Not at start up. You would notice it if you had it.

 

Here is the tsb on the vane sweeps.

http://www.powerstroke.org/forum/att...ous-issues.pdf

 

A little more info: I was only looking at my 1st file where I saw both VGT at 85% and 15% (latter several times). The 85% looks to be around the time I reset the CEL faults and I never saw those high of numbers again, in either file.

The 15% ones look to all be around when I was really romping on it and mostly either after a shift or when I chopped the throttle.

Then after my lunch stop I had a mostly down hill run back home, lowest VGT % was in high 30s and highest was like 76%...

Turbo whistle sounded very normal: changing with any throttle change, etc.

Maybe I'm making myself more paranoid....

Scott

 

Thanks Sean: I scanned through the TSB and I don't think I have that version. I would think I would see the sweep on my torque log file, unless it needs to run an hour before doing one (a sweep).

I may take the truck down to my folks and do the same logging and see what I get -- it's a 2 hour trip each way...

I assume since my truck is out of warranty, I can't go in to Ford and ask them to perform the TSB, right?

 

I think they would charge $100 to flash it.

I did a video on 18 gauges while doing multiple wot runs for each group of gauges.
At 2 minutes in the video you will see me kick my vgt down to 14.

 

Thanks for sharing that, Sean -- makes me feel better!

Scott

 

30-76% is a good range. About what I see on a new turbo, but no sweep here to speak of.... if that helps Scott.

 

Yes it does, thanks Randy

I'm still wondering how much hunting at idle mustang_309 was getting...

Bottom line is the truck needs to get driven more regularly!

Thanks guys ,
Scott

 

The hunting at idle wasn't as pronounced as it was stead state driving at say 65 MPH. sometimes the VGT% at hot idle would start at 70 to 85 % and slowly drift down to the low 60's. While driving stead state at freeway speed it would hunt from 45 to 60% or so, when I first got the truck it would vary from 50 to maybe 55%.

 

Thanks for the follow-up -- I'm going to keep monitoring this until I feel more comfortable it hasn't gone whack on me... I'll be able to look at the steady state on a flatter fwy trip.

Thanks again,
Scott

on edit: go figure, I was actually able to rep you!!!

 

Sweet thanks bro.