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04 Popping through intake?

12670 Views 7 Replies 6 Participants Last post by  smorris
Have a hotshot friend of mine broke down in indiana, truck was running great he came up to a stop let out of it from 65mph and it started making a loud popping noise through the intake? truck seems to be idleing fine but has lost all bottom end power and is making a loud (audiable in the background on crappy cell phones thumping noise coming back through the intake???

any ideas?

turbo?
valvetrain?
pushrod on exhaust valve come loose?

Thanks for the help Travis
1 - 1 of 8 Posts
Most likely a bent valve. Have had 5 or 6 in the fleet do it now, not common but it does happen with 'em. Usually they'll idle really rough though, but one I had didn't idle too bad, but ran like doodoo.
1 - 1 of 8 Posts
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