Type: Posts; User: Veritas
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Yes, I pulled the throttle body off to clean the intake manifold. I cleaned the length of the entry duct all the way back to where it reduces in size.
Your last statement is foolish on so many...
OK, so I've now also done:
a very thorough carful smoke test with the a friends pressurized smoke machine. No leaks
checked MAF sensor and cleaned throttle body and intake as far as I could get...
I've got a 2007 Silverado 2500HD 6.0 Vortec with a PO300 random misfire/rough idle issue. 150k miles on the truck. I've read most threads on the subject (much appreciation!), and will try some more...
I've lurked a while, finally registered. I ended up here (as I suspect many do) as a result of needing help diagnosing my 2007 Silverdo 2500HD. I've already gained so much knowledge on this...
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