New truck....

[whitehorse]

All the time...but I thought it would come through the exhaust also if it's valve train related...iI will make a video in the morning

 

[riotwarrior]

Intake valve sticking or bad guide will huff out intake

Same for exhaust if it is an exhaust valve...but you wont hear exh out intake usually or visa versa...


Hope this helps

 

[IDIoit]

try some auto RX first, could be a dirty lifter??

 

[whitehorse]

I hope so...it's been sitting about two months before I bought it....