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Old 03-04-2019, 09:31 AM   #1
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National RV Muffler Search

Hello everyone, Kate and I have been trying to revive some of the dead brain cells as we learn about our 2001National Caribbean RV. We've been out in it three times and want to get out more often and for longer periods. As I learn about this rascal I found I need a few things: to replace the muffler and Spartan does not have any in stock and no supplier. Does anyone have any suggestions on where to find a dependable supplier? I've contacted United, Donaldson, Grand Rock and APExhaust with no success at present; Think I need to replace the boost solenoid (incase my chassis batteries can't turn over the engine and need the house batteries' help; seems simple enough to replace) and I have a dash light switch that is not dependable to illuminate the dash gages when I am operating at night. I have to play with it to get the gage lights to operate. Something I am learning that I need to drive during daylight whenever possible. Any help on these three issues is very much appreciated. Thank you, Kevin.

ps-
I am learning when I connect to shore power the Inverter begins to charge my house batteries but then my chassis batteries get discharged so I'm thinking that boost solenoid is stuck in the energized state. Any experienced out there that may concur? Thanks!

Kevin & Kate
2001 National Caribbean
Wilson, NC
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Old 03-04-2019, 09:59 AM   #2
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You will probably have to measure the size and pipe inlet and outlet and to find a muffler. Might find one on rockauto.com or any good muffler shop.

I have replaced the solenoid on my 2001 Dophin. It's fairly easy once you get the control board out. Make sure to take pictures and label all the wires BEFORE you remove the 12v control board. Make sure you get a solenoid that is rated for "continuous duty".

good luck
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Old 03-05-2019, 05:23 AM   #3
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Hello Mike

Thank you for your reply. The search for a muffler goes on but now I have a bigger problem. Here is what I posted to other forums concerning the replacement of the relay. OMGosh! I knew I messed up when I could smell that smell of a circuit board burning. I have a 2001 National Caribbean that had a bad boost relay mounted behind the main circuit board at the rear of the coach. After disconnecting the house batteries I removed the board and replaced the relay. I took pictures of the board and remounted the board as the pic showed and then reconnected the house batteries. I heard the battery disconnect relay energize and there was some sparking on the reconnect of the positive house batteries. I didn't see any issues after the connection so I went to the dash panel, turned on the disconnect switch and then the ignition but didn't start the engine. Then I operated the boost switch and I could hear it switching. I then started the engine and went back to the main board and that is when I smelled it burning. I immediately went and shut the coach down and came back to study the board to see where it was burning and found it. UGH! Does anyone know what I need to do to repair or replace this board? Any help is very appreciative! Thank you,

Kevin & Kate
Wilson, NC
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Old 03-05-2019, 07:11 PM   #4
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I had the same muffler issue on ours with a 3126 Cat. Measured inlet and outlet sizes and overall size of muffler went to Oriellys and ordered a walker muffler for $139
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Old 03-06-2019, 04:23 AM   #5
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Re: Muffler search

O'Riellys huh, have to check it out. I got an estimate from United for over $300 to build one. Thanks!
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Old 03-06-2019, 11:44 PM   #6
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Hi Cowboy0001
If all else fails try https://rvexteriorbodypanels.visionerv.com go to Menu and pull up National RV Parts. Good luck!
Marcia
2008 National Surf Side SS29
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Old 03-06-2019, 11:50 PM   #7
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Find a small locally owned muffler shop. They can measure, order, and replace along with checking all the exhaust piping. I've got a one guy shop near me that does a lot of regular as well as custom stuff for a fair price. Not sure a national chain will have experience with unusual exhaust systems.
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Old 03-07-2019, 01:37 PM   #8
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Wow I need to follow this , mine has a patch job that's ready to fail
Quote:
Originally Posted by BOOZE TRAVEL View Post
I had the same muffler issue on ours with a 3126 Cat. Measured inlet and outlet sizes and overall size of muffler went to Oriellys and ordered a walker muffler for $139
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Old 03-07-2019, 10:13 PM   #9
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Try fleet pride or truck pro
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Old 03-08-2019, 05:47 AM   #10
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Cowboy0001
That lead me to a unsecured site was warned of spam
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Old 03-09-2019, 01:03 AM   #11
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Cowboy0001
That lead me to a unsecured site was warned of spam
https://fleetpride.com/parts/

Or Google fleetpride neat me call and tell them what you need but b prepared to give dimensions
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Old 03-09-2019, 01:08 AM   #12
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Originally Posted by Kennzz05 View Post
https://fleetpride.com/parts/

Or Google fleetpride neat me call and tell them what you need but b prepared to give dimensions
https://online.flippingbook.com/view/162168/
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Old 03-09-2019, 01:29 AM   #13
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Maybe this will help their website seems to suck badlyClick image for larger version

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Old 03-09-2019, 06:29 AM   #14
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Thank you Cowboy0001
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Originally Posted by Kennzz05 View Post
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