MBRP 4" install now clunking sound

bfrank81 · #1 (**permalink**) 01-31-2011, 09:41 AM

So here is another shameless plug of my you tube video...

YouTube - '05 Ford F250 MBRP 4" turbo back

Now that that is out of the way. Since the install was completed by my local shop there is a clunk sound when I go around a sharp corner. Is this typical or should I take it back and have it looked at?

***HeavyAssault*** · #2 (**permalink**) 01-31-2011, 03:36 PM

Get under the truck and shake the piping. Helps me find the squeaks and bumps.

**mmandley** · #3 (**permalink**) 01-31-2011, 04:37 PM

Yea most definitely get under there and shake it. I would suspect its near the tail pipe. I know in the front off the down pipe its super tight due to the turbo. As it goes father back it has a little movement from the hangers.

bfrank81 · #4 (**permalink**) 01-31-2011, 06:10 PM

Quote:

Originally Posted by HeavyAssault

Get under the truck and shake the piping. Helps me find the squeaks and bumps.

yea I tried that... I couldn't really tell. I was wondering for those that have the same exhaust do they have anything like that. Also another weird thing is there is a vibration coming from under the floor. It is most notable on the gas pedal at about 1500 RPM on the highway at 65ish.

mah77 · #5 (**permalink**) 01-31-2011, 06:16 PM

I had a similar issue, and found it was one of the hangers slamming against the frame rail. Just cut that bugger a little shorter with a sawzall, and bingo.

***dz4swamper*** · #6 (**permalink**) 01-31-2011, 06:18 PM

The vibration could be due to the down pipe touching the pinch weld. Try taking a pry bar and create more space between the pipe and pinch weld

Mikey's250 · #7 (**permalink**) 01-31-2011, 06:20 PM

My buddies 4" was rubbing on a transmission line, it was jingling more than clunking. May want to look at it

LNS4x4 · #8 (**permalink**) 01-31-2011, 06:33 PM

Quote:

Originally Posted by dz4swamper

The vibration could be due to the down pipe touching the pinch weld. Try taking a pry bar and create more space between the pipe and pinch weld

I had to do the same thing

**mmandley** · #9 (**permalink**) 01-31-2011, 06:37 PM

yay so mine that i just did myself on saturday in my gargage the biggest thing i had an issue with was the down tube. It was eighter on the frame rail, on the corss pipe or the clamp was on the trans tupe. Its realy a fine line up there and you just have to get a good 1/2 clearence.

I ended up cutting the tail pipe hanger off and i didnt use it. I have my last hanger right behind what was the muffler. I tested it and its pretty firm so i left it. So fare i havnt herd any banging or ratteling. I will have to recheck it in a few day.