k1ngoftheranch

i have recently discovered a loud knocking coming from the bottom of the passenger side of the engine just above the cat...the it gets louder as the truck warms up and gets faster when the rpms go faster...engine oil and all fluids have been recently changed and are all at the correct levels...ive had both the edge and intake for probably 10-12 months and have had no driveability issues...not sure what the knock is...im at 34,300 miles so its going to the dealer wednesday...im worried tho...what do you guys think? thanks

JohnC

Wow it doesn't sound good. Make sure to return your set up back to stock before the dealer visit and good luck. Let us know what they find.

soonersford

I heard a truck the other day that you would swear had a main bearing out the knock was so loud. Come to find out it was the cat converter was bad. I would have never thought it.

obusnizzle

it could be that the Edge tuner is causing a slightly rich condition due to the nature of the precanned tune and the over correction of the intake, thus dumping in fuel and contaminating the convertor. Although, I could be wrong....or that the overly rich condition is producing a cylinder washing effect and starving the bearings of oil, which is not good, mmkay.

either way, he should put on the OEM intake, yank the tuner, and send it to the stealership.