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01-15-2018, 12:47 PM
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#1
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Member
Join Date: Nov 2014
Location: Los Angeles
Posts: 67
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7.3 PSD interior noise questions
Hi all, long time lurker on the Sportsmobile forum and I just bought my first van for conversion. I am not sure if this is the right category to post, my questions is related to interior noise of the 7.3 PSD vs gas motors.
I recently picked up a 2002 Quigley 4x4 E350 extended 15 passenger with a 7.3 PSD and about 200k miles on it. The previous owner started to tear the passenger van apart and left it in a semi unfinished state.
I drove the van home and noticed the interior noise is quite loud, long distance travel at this noise level wouldn't be very pleasant. I put in my in-ear headphones and most of the noise of the motor were filtered out, so that made the long drive home much better. But I am not sure if it's missing interior sound insulation in the front end of the cabin to lead to this high noise level. I've read that the 7.3 is a noise monster, just wondering anyone with this motor has thoughts about the interior noise and how to combat it?
Anyone have a 7.3PSD van in Southern California willing to let me ride in their van to compare?
Thank you in advance!
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01-15-2018, 01:28 PM
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#2
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Senior Member
Join Date: Nov 2012
Location: boise idaho
Posts: 2,624
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theres a few threads on the subject, but this is the first one i could find.
http://www.sportsmobileforum.com/for...use-19991.html
__________________
"understeer is when you hit the wall with the front of your car, oversteer is when you hit the wall with the rear of your car, horsepower is how hard your car hits the wall, and torque is how far your car moves the wall."
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01-15-2018, 01:28 PM
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#3
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Site Team
Join Date: May 2007
Location: Southern New Mexico
Posts: 10,176
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Quote:
Originally Posted by lazybummm
... The previous owner started to tear the passenger van apart and left it in a semi unfinished state...
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What type of noice are you hearing, exhaust noise, tire noise, engine noise? Depending on what was torn out, a bare metal van can be very loud inside, especially a diesel.
One thing to check is to see if the doghouse cover is installed correctly.
Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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01-15-2018, 03:05 PM
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#4
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Senior Member
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 3,253
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Where are you in So Cal? (please consider adding location to your profile.)
I will be in SoCal later this week, Long Beach area. Thxs!
__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV High Top, Custom Walk Through, Lots of stuff added. www.BlingMyRig.com
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01-15-2018, 04:10 PM
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#5
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Senior Member
Join Date: Apr 2007
Location: Western Colorado
Posts: 1,228
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I used a dynamate type material on the floor in the cab and footwells. I also removed the factory insulation on the doghouse and added a layer of Thermozite insulation. Any type would probably help (ultratouch, thinsulate).
This has helped a lot with the noise. Otherwise it's like riding in a beer can with a diesel.
__________________
Desert Solitaire
2003 7.3L EB 4x4
Timberline 4x4 conversion
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01-15-2018, 04:38 PM
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#6
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Member
Join Date: Nov 2014
Location: Los Angeles
Posts: 67
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Quote:
Originally Posted by shenrie
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Thank you Shenrie, I will do some more searching and reading on the subject
Quote:
Originally Posted by 1der
Where are you in So Cal? (please consider adding location to your profile.)
I will be in SoCal later this week, Long Beach area. Thxs!
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Thanks for getting back to me, I am close to Long Beach. If you have some time to kill in an afternoon, I would love to see your van and buy you a beer!
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01-15-2018, 04:42 PM
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#7
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Member
Join Date: Nov 2014
Location: Los Angeles
Posts: 67
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Quote:
Originally Posted by BroncoHauler
What type of noice are you hearing, exhaust noise, tire noise, engine noise? Depending on what was torn out, a bare metal van can be very loud inside, especially a diesel.
One thing to check is to see if the doghouse cover is installed correctly.
Herb
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Thank you! I unlatched and relatched all the latches on the doghouse, but could be the stripping around it that not be sealing properly. I will definitely look into getting that redone.
The noise was definitely motor and/or possibly exhaust, when I coast on slower speeds, it gets significantly quieter. I've never owned a diesel, so I am not familiar with various notes in the Diesel symphony, though I am quite sensitive when listening to gas motors for issues.
Quote:
Originally Posted by saline
I used a dynamate type material on the floor in the cab and footwells. I also removed the factory insulation on he doghouse and added a layer of Thermozite insulation. Any type would probably help (ultratouch, thinsulate).
This has helped a lot with the noise. Otherwise it's like riding in a beer can with a diesel.
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Thank you! I will look into that as well.
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01-15-2018, 06:42 PM
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#8
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Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 1,258
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7.3PSD are loud?
that can't be possibly true...
LOL
__________________
Rob.
Current:
2001 E350 PSD w/ a bunch of stuff.
And had three other E350s...
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01-15-2018, 07:02 PM
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#9
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Senior Member
Join Date: Dec 2015
Location: Hillsboro, OR
Posts: 1,371
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Easiest modification to reduce the noise would be swapping the engine.
But in all seriousness, check out cascade audios products sold at Zeronoise.com. lots of options for reducing engine/road noise.
__________________
2010 E150 5.4, E250 suspension, E350 springs, BFG KO2 265/75/16.
Google Sled Hockey - You won't be disappointed.
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01-15-2018, 07:51 PM
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#10
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Site Team
Join Date: May 2007
Location: Southern New Mexico
Posts: 10,176
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Quote:
Originally Posted by Jsweezy
Easiest modification to reduce the noise would be swapping the engine...
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A louder stereo is far simpler.
Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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