lmorris Posted May 22, 2012 Share Posted May 22, 2012 I have an F350 ch/cab with a single stage turbo that is noisy as hell. First off the training and WSM are messed up because according to them an F350 cannot have a single stage turbo because it is under the 12,000 LB GVW stated in the WSM. But it does because wide frame/narrow frame determine turbos not GVW. Got that all figured out. Now hotline wants me to perform 12B34, a reprogram for turbo noise. Guess what, I can't find it. Has anyone State side performed this and can you provide any feed back as to what it entails and any results as far as turbo noise go? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted May 23, 2012 Share Posted May 23, 2012 I atached the Dealer Bulletin and the Technical Information PDF's to this post below. Enjoy! Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted May 23, 2012 Share Posted May 23, 2012 Made the same post as Keith and he beat me to it! Anyway I have only replaced one noisy turbo on a cab and chassis. Other than that I haven't seen any. Quote Link to comment Share on other sites More sharing options...
Matt Saunoras Posted May 23, 2012 Share Posted May 23, 2012 so an F-350 cab and chassis has a VGT turbo? That is very interesting. I fail to see how a reprogram is going to help a turbo noise. I've had a few cab and chassis turbos with the impeller worn out from contacting the housing. Quote Link to comment Share on other sites More sharing options...
DieselD Posted May 23, 2012 Share Posted May 23, 2012 Glad to see something official on this issue finally. In our fleet we have had 3-4 turbo failures in 2011 F550s so far. At the time (4-6months ago)it was all supposed to be under investigation with a rumored recalibration to fix it. Better warm up my IDS for programming! Quote Link to comment Share on other sites More sharing options...
lmorris Posted May 23, 2012 Author Share Posted May 23, 2012 so an F-350 cab and chassis has a VGT turbo? That is very interesting. I fail to see how a reprogram is going to help a turbo noise. I've had a few cab and chassis turbos with the impeller worn out from contacting the housing. Both the single and dual stage turbos are VGT controlled. Only the dual stage turbo has the wastegate. All chasis cabs get the single stage turbo regardless of GVW. BTW: This one sounds like a turbine engine on take-off. Pretty sure it will need a new turbo. Thanks for the list. Quote Link to comment Share on other sites More sharing options...
Matt Saunoras Posted May 24, 2012 Share Posted May 24, 2012 Better warm up my IDS for programming! I just put v79.00 in ours today. Seemed to program flawlessly (fingers crossed!) Quote Link to comment Share on other sites More sharing options...
lmorris Posted May 24, 2012 Author Share Posted May 24, 2012 We just got V79 this morning. I wonder if they will release the TSB now that we have access to the program update. Quote Link to comment Share on other sites More sharing options...
DieselD Posted May 25, 2012 Share Posted May 25, 2012 make sure your on 79.01 to program for the 12b34 Quote Link to comment Share on other sites More sharing options...
lmorris Posted May 25, 2012 Author Share Posted May 25, 2012 We just got V79 this morning. I wonder if they will release the TSB now that we have access to the program update. Sure as shit, it showed up at the same time. All we got was an advanced notice. Used the info supplied by Keith, so we shall see if it goes through. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.