Changed my tune on that old 'just add more additive' fix for a rough idle on a 6.7 Powerstroke after it made my injector balance rates go haywire.

My boss in Tulsa said to try a double dose of cleaner before pulling the injectors, but after 3 days the truck started missing so bad I had to replace two of them anyway, costing me a full Saturday and $400 in parts I could have avoided.

3 comments

3 Comments

xena5828d agoMost Upvoted

My uncle in Wichita swears by that cleaner trick, says it saved him a $2,000 bill on his dually. I mean, @kevin331 has a point about it being a cheap first step. Sometimes you get lucky and it's just some junk in the fuel line. Pouring a bottle in is way easier than tearing into the engine on a guess. It doesn't always work, but when it does you feel like a genius for avoiding the shop.

kevin3318d ago

Sometimes those cleaners just loosen up gunk that was barely hanging on. It might have been on its way out already, and the cleaner just sped things up. A rough idle can mean a lot of things, not always a stuck injector. It's a cheap thing to try before dropping real money on parts and labor.

wood.uma8d ago

My buddy's truck was idling like it had a bad cold. He tried a bottle of that cleaner stuff, and it ran worse for a day before it smoothed right out. Guess it just broke up a chunk of carbon that was about to let go anyway.