Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 06-05-2021, 12:00 AM   #11
Senior Member
 
arctictraveller's Avatar
 
Join Date: Mar 2013
Posts: 3,800
I had a new muffler installed and the drone was horrendous. I went back the next day and they substituted a different muffler. I’ve never heard a drone sense.
__________________

__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
arctictraveller is offline   Reply With Quote
Old 06-05-2021, 04:00 AM   #12
Senior Member
 
Join Date: Nov 2016
Location: FL and VA
Posts: 1,415
Garage
Me too on the loud muffler, a “performance” muffler that droned bad. Added a resonator to the tip that helped, but the real solution is cats and a quiet muffler.
__________________

__________________
Chris
2008 GMC 3500 Quigley Weldtec 4x4 Savana SMB
2006 BMW HP2 Enduro-Sold
marret is offline   Reply With Quote
Old 06-05-2021, 08:15 AM   #13
Senior Member
 
1der's Avatar
 
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 2,606
Yep. You are not alone in the drone

https://www.google.com/search?q=spor...&client=safari

This is one is my favorites:
https://www.sportsmobileforum.com/fo...elp-13197.html

__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV Mid Top, Custom Walk Through, Lots of stuff added. BlingMyRig.com
1der is offline   Reply With Quote
Old 06-05-2021, 05:44 PM   #14
Member
 
Houstonredrider's Avatar
 
Join Date: Nov 2012
Location: HOUSTON, TX
Posts: 60
If not the exhaust, check for the driveshaft. Being out of balance or with worn bearings can cause vibration.
__________________
2010 E350 4x4 MG Coil conversion
Houstonredrider is offline   Reply With Quote
Old 06-05-2021, 08:06 PM   #15
Senior Member
 
86Scotty's Avatar
 
Join Date: Jul 2011
Location: TN
Posts: 9,340
Quote:
Originally Posted by Houstonredrider View Post
If not the exhaust, check for the driveshaft. Being out of balance or with worn bearings can cause vibration.
Having not heard his issue for myself I thought this too at first but he says that was all checked out be a mechanic recently.
__________________
-Eric

2010 Chevy AWD home build
86Scotty is offline   Reply With Quote
Old 06-05-2021, 08:54 PM   #16
Member
 
Houstonredrider's Avatar
 
Join Date: Nov 2012
Location: HOUSTON, TX
Posts: 60
Quote:
Originally Posted by 86Scotty View Post
Having not heard his issue for myself I thought this too at first but he says that was all checked out be a mechanic recently.
In general I have little faith in mechanics. This one in particular is not able to identify issues, leaving the customer asking to the keyboard warriors of the internet (such ourselves).
I'll still check the driveline: chock front wheels, lift one rear wheel and try turning forward and backwards. Look for the play on the driveline.

If yours is 4x4, check that your front hubs are on "free". Front driveshafts usually have a more pronounced angle and the U-joints do not like to spin fast.
__________________
2010 E350 4x4 MG Coil conversion
Houstonredrider is offline   Reply With Quote
Old 06-06-2021, 11:11 AM   #17
Junior Member
 
Join Date: Jun 2021
Posts: 6
Thanks,I have been going round and round with the muffler shop on this.
E350love is offline   Reply With Quote
Old 06-10-2021, 05:06 AM   #18
JWA
Senior Member
 
Join Date: Jan 2011
Location: Reynoldsburg, Ohio
Posts: 3,363
Send a message via Yahoo to JWA
Quote:
Originally Posted by 86Scotty View Post
You have answered your own question. The cats were removed. The drone in every van I've had with a lousy aftermarket exhaust or removed cats was unbearable, just as you describe, and it is worse on throttle, as you describe. When you let off the gas (and coast) it gets a lot quieter.

Put the cats back on. You aren't doing anything without them but poisoning yourself.

I had a '97 E-250 w/5.4 gasser, 212K miles of a hard life when I bought it---had that same drone---I first assumed it was a leaking muffler or other exhaust issue. When presented to the trust exhaust specialist they pointed out the Cat had been removed, a straight tube grafted into the system. Seems the Cats and the resonator tube play an important part in noise control.

I guess Ford et al kinda know what they're doing designing exhaust systems?
JWA is offline   Reply With Quote
Old 06-10-2021, 10:02 AM   #19
Member
 
Join Date: Jan 2018
Posts: 44
I have the same issue with my E350 with the 7.3 Diesel. My drone started after I made a custom intake. Got worse after I repaired an intake boot. Sound deadening the doghouse helped a bit, but there’s no fixing the fact that the engine is basically in the middle seat.
TCNorthwest is offline   Reply With Quote
Old 06-10-2021, 10:05 AM   #20
Member
 
Join Date: Sep 2019
Posts: 88
What do you mean you’ve been going round and round with the muffler shop?

Try a different muffler — or heck — add a second one where your CATS were….

This happens all the time with exhaust — especially in a vehicle that is basically a cave just waiting to resonate any vibrations.

I may be the minority here — but if you’re trying to get them to “fix” your repair that happened two years ago on their dime… well… that isn’t a winning battle.
__________________

winnievan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 06:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×