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- - Boost fluctuation (https://www.dieseltruckresource.com/forums/3rd-gen-engine-drivetrain-2003-2007-102/boost-fluctuation-334854/)

railroaderone23

Jan 22, 2022 07:45 PM

Boost fluctuation

OK my truck has 178k miles under load or acceleration the boost will fluctuate between 20 and 35 psi very quickly. There are no signs of leaks anywhere. Could a restricted catalytic converter cause this issue also the egts are just a little warmer than before
2007 5.9 G56

FMB	Jan 23, 2022 10:50 AM

Quote:

Originally Posted by railroaderone23 (Post 3379520)

Could a restricted catalytic converter cause this issue

Sounds more like a wastegate issue on your turbo.

Quote:

Originally Posted by railroaderone23 (Post 3379520)

also the eggs are just a little warmer than before

TMI

Back to morning brew . . . [coffee]

railroaderone23

Jan 24, 2022 10:33 PM

Quote:

Originally Posted by FMB (Post 3379526)

Sounds more like a wastegate issue on your turbo.

Do you know how to test it

FMB	Jan 25, 2022 09:40 AM

Quote:

Originally Posted by railroaderone23 (Post 3379550)

Do you know how to test it

Sorry, no I don't. Hopefully, someone else will chime in.

It would help, though, if you would fill in your signature info by clicking on "User CP" up in that grey bar above. From there, in the left collum, click "Edit Signature". In the "Edit Signature" box, let folks know what you have, year/model/trans, ect, and that will show up every time you post. That way, people know what engine you are asking about.

Good Luck,
Back to morning brew . . . [coffee]

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