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Technical Support / Re: Front tire size question
« Last post by Norm Vernon on Today at 09:16:52 AM »
I have the 315 on my 04 Marquis with no mounting or rubbing issues - mine are Yokohama's - they do ride considerably more stiff - but they come with weight carrying piece of mind.
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Technical Support / Re: Did i just have an airbag failure?
« Last post by Steve Misemer on August 09, 2022, 06:16:20 AM »
Thank you for the responses.

Fred I will try out your suggestions.

Steve
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Technical Support / Re: Did i just have an airbag failure?
« Last post by Carl Boger on August 09, 2022, 01:44:51 AM »
Steve,

I can tell you when I had a air bag blow, it was a explosion, like a loud gun shot.  That doesn't mean yours will be the same if you just have a small pin hole.  Thankfully I was at home so it didn't leave me stranded.  If there is a hole in the bag it should become obvious once you air everything up and look around.
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Technical Support / Re: Front tire size question
« Last post by Scott Shearer on August 08, 2022, 08:08:19 PM »
Steve,

The first thing you need to do is identify your wheel size and capacity. If you have the Acruride 8.25x22.5 wheel that came on a number of 2006 MY, you are limited to 125psi cold inflation.

Something to keep in mind, in 2018 Michelin released a Technical Bulletin repealing its approval of installing 315/80R22.5 on the 8.25 wheel. In addition, they reduced the published load carrying capacity when installed on an 8.25, other tire manufacturers have since followed suit.

As for clearance, you’d need to actually mount and install the 315s to verify. Some have been successful while others with similar coaches have had issues that required modifying the air bag mounting plates. Those with longer wheel base coaches have been more successful.

I was considering 315s and decided that it wasn’t worth the hassle of mounting, trying and possibly removing the 315s, especially with the reduction in load caring capacity.

I went with the Continental HSR2 295/80R22.5 for steers, at 120 psi the HSR2 carries additional 255 POUNDS per tire over other brands of the same size. Being and member of FMCA, the Continental is available through the FMCA tire discount program.

I went with Toyo M144s for driver and tag.

I run Centramatics on all axles with no additional balancing required, this has produced a very smooth ride.

-Scott

Corrected the following:
carries additional 255 psi per tire, S/B carries additional 255 POUNDS per tire
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Technical Support / Re: Brake ?'s for 2001 Marquis Amethyst
« Last post by Mark Love on August 08, 2022, 08:06:49 PM »
Thank you Frank,

I got everything ordered.
Rotors-Meritor 3218K167 $293.81X6
Pads-Meritor KIT15625PM $360.80X3
Springs-Meritor KIT15018 $21.44x6

Total after discount code and shipping is $3335.08

I bit less then the $9029.97 that BCS wanted.
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Technical Support / Re: Brake ?'s for 2001 Marquis Amethyst
« Last post by Frank Bergamo on August 08, 2022, 07:23:53 PM »
Mark,

These are the cheapest one’s I found, https://www.finditparts.com/products/39506/arvin-meritor-kit15018 Napa, Amazon, E-bay all have them at various prices. You need 6 pairs for 3 axles. Hope this helps.
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Technical Support / Re: Did i just have an airbag failure?
« Last post by Fred Brooks on August 08, 2022, 06:59:09 PM »
     Steve,
I can't speak to the possibility of an air bag failure based on your discription. It should be fairly easy to go thru the sequence of airing up the coach to 120 psi and see if everything is level and normal with no air hissing noises anywhere. Next, go thru your leveling sequence as you normally would do. Next go thru your air dump sequence Note: make sure front wheels are facing straight ahead.
   When you go to depart and push the travel button, you activate the "6 pack" solenoids located in the front & rear and change the solenoids from the "leveling position" to the "normal ride height". You may have a leak at either 6 pack solenoids. See photo. Hope this helps, Fred
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Technical Support / Re: Brake ?'s for 2001 Marquis Amethyst
« Last post by Mark Love on August 08, 2022, 06:19:29 PM »
Steve-I looked where you suggested but did not see any part #'s  Think I have what I need though.

Frank do you have a part #for that spring upgrade kit?

Thank you both.
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Technical Support / Re: Front tire size question
« Last post by David T. Richelderfer on August 08, 2022, 03:18:39 PM »
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Technical Support / Front tire size question
« Last post by Steve Misemer on August 08, 2022, 06:49:19 AM »
I am replacing the tires on our coach and have a couple questions.

Currently all of the tires are 295/80R22.5

I wanted to know if anyone with an 06 Marquis Jade IV has go up to 315/80R22.5 for the front tires? Do these restrict or inhibit the turning radius on this model? They are quite a bit more expensive.

If they do fit is there a reason to go to a larger tire? do they ride better, are they smoother? It does look like these are a much higher ply rating than the 295/80R22.5

Any info is appreciated.

Thank you
Steve 
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