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busboy1988
Active Member

12 Posts

Posted - 11/11/2011 :  06:55:59 AM  Show Profile  Visit busboy1988's Homepage  Reply with Quote
ok, this was a new one for me, and was wondering if anyone else has experienced it...'08 Bluebird FE w/ Cummins 6.7-the air compressor started pumping slow and engaging at erratic intervals. I put a new governor on it-no difference. I pulled the air dryer apart thinking maybe the slow pumping was a plugged cartridge...the dryer purge valve was gummed up with thick black goo...changed valve and cartridge. Next, pulled compressor air intake hose and found black soot. Called Bluebird dealer...they said it is because the egr is being introduced into the intake pipe at the same spot the compressor is pulling its fresh air from so the compressor is sucking up exhaust and it's plugging the valves. Anyone else see this yet??

Thomasbus24
Administrator

USA
3345 Posts

Posted - 11/11/2011 :  08:01:02 AM  Show Profile  Reply with Quote
Oh now THERE is a another shining example of quality engineering. Looking forward to seeing failures in my fleet real soon!
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JustinB
Advanced Member

United States
490 Posts

Posted - 11/11/2011 :  2:59:09 PM  Show Profile  Reply with Quote
Are BB & Cummins learning the same lesson DDC & Freightliner learned 10 years ago? [LOL]

Air compressor intake down stream of EGR re-intro? Ain't that like installing your latrine upstream?

I may not know the answer but I can usually find who does.

Edited by - JustinB on 11/11/2011 3:01:44 PM
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Wolf0r
Top Member

USA
2179 Posts

Posted - 11/14/2011 :  08:55:48 AM  Show Profile  Reply with Quote
quote:
Originally posted by JustinB

Are BB & Cummins learning the same lesson DDC & Freightliner learned 10 years ago? [LOL]

Air compressor intake down stream of EGR re-intro? Ain't that like installing your latrine upstream?



LOL

“The good thing about science is that it's true whether or not you believe in it.”
Neil deGrasse Tyson
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Thomasbus24
Administrator

USA
3345 Posts

Posted - 10/22/2012 :  1:13:39 PM  Show Profile  Reply with Quote
My turn! 2010 with 57K on the odometer.
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BJ Henderson
Advanced Member

USA
228 Posts

Posted - 10/24/2012 :  03:57:22 AM  Show Profile  Send BJ Henderson an AOL message  Reply with Quote
Justin, coffee up my nose really helps at 6 AM!

CMTT,CMAT,CMBT
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LeeB77
New Member

6 Posts

Posted - 10/25/2012 :  04:35:31 AM  Show Profile  Visit LeeB77's Homepage  Reply with Quote
Yes we have been through this. We started going through long air pressure build up times. We sent one in for warranty and they insisted it was a dryer issue. After the run a round we finally convinced them it was the compressor head. They are replacing the compressor heads and everything is back to normal.
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