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Old 07-19-2018, 01:58 PM   #1
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Tire Pressure Tire Pressure It's important

Just wanted to post this and say thanks to all that pointed me in this direction.

I did have our Jayco Seneca weighed, each axle and total weight. Then went to the web site for the tires that are on our coach. I adjusted the tire pressure to what they said for the axle weight.

After doing this on our first trip the coach handled like a dream. The push that was happening when passed by a semi is greatly improved. No more white knuckle driving.

All I can say is "THANK YOU". Now I don't need to install a steering stabilizer or sway bar. Setting tire pressure saved me money.
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Old 07-19-2018, 02:08 PM   #2
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Another satisfied customer.

It DOES make a huge difference, I noticed the same on mine.
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Old 07-19-2018, 02:23 PM   #3
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Funny story from my end. Recently got the coach back from its State mandated annual inspection, usual shop was busy so I went to a larger truck facility nearby. When driving coach home I couldn't help feeling like the ride/handling was awful compared to my memory, had me a little concerned as we have a big trip upcoming.

Got home and was reviewing the paperwork, noticed the tech had noted "Tire pressure below recommendations, inflated tires to recommend settings". Had me scratching my head as I do check them pretty regularly thanks to this forum. Went out and checked the tires, instead of my 95psi, they were all at 120PSI, the max pressure recommended on the sidewall. Spent Sunday am resetting the pressures back...........
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Old 07-19-2018, 10:01 PM   #4
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Funny story from my end. Recently got the coach back from its State mandated annual inspection, usual shop was busy so I went to a larger truck facility nearby. When driving coach home I couldn't help feeling like the ride/handling was awful compared to my memory, had me a little concerned as we have a big trip upcoming.

Got home and was reviewing the paperwork, noticed the tech had noted "Tire pressure below recommendations, inflated tires to recommend settings". Had me scratching my head as I do check them pretty regularly thanks to this forum. Went out and checked the tires, instead of my 95psi, they were all at 120PSI, the max pressure recommended on the sidewall. Spent Sunday am resetting the pressures back...........
Yup, every time I am forced to take our MH to the shop my first instruction is to "leave tire pressure alone".
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Old 07-19-2018, 10:28 PM   #5
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Originally Posted by Fordfixer1 View Post
Just wanted to post this and say thanks to all that pointed me in this direction.

I did have our Jayco Seneca weighed, each axle and total weight. Then went to the web site for the tires that are on our coach. I adjusted the tire pressure to what they said for the axle weight.

After doing this on our first trip the coach handled like a dream. The push that was happening when passed by a semi is greatly improved. No more white knuckle driving.

All I can say is "THANK YOU". Now I don't need to install a steering stabilizer or sway bar. Setting tire pressure saved me money.



What were the air pressures BEFORE and AFTER weighing?
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Old 07-19-2018, 10:39 PM   #6
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Quote:
Originally Posted by Blastvalve View Post
Funny story from my end. Recently got the coach back from its State mandated annual inspection, usual shop was busy so I went to a larger truck facility nearby. When driving coach home I couldn't help feeling like the ride/handling was awful compared to my memory, had me a little concerned as we have a big trip upcoming.

Got home and was reviewing the paperwork, noticed the tech had noted "Tire pressure below recommendations, inflated tires to recommend settings". Had me scratching my head as I do check them pretty regularly thanks to this forum. Went out and checked the tires, instead of my 95psi, they were all at 120PSI, the max pressure recommended on the sidewall. Spent Sunday am resetting the pressures back...........
I would be calling and having a discussion with the manager...
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Old 07-19-2018, 10:50 PM   #7
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Quote:
Originally Posted by Blastvalve View Post
Funny story from my end. Recently got the coach back from its State mandated annual inspection, usual shop was busy so I went to a larger truck facility nearby. When driving coach home I couldn't help feeling like the ride/handling was awful compared to my memory, had me a little concerned as we have a big trip upcoming.

Got home and was reviewing the paperwork, noticed the tech had noted "Tire pressure below recommendations, inflated tires to recommend settings". Had me scratching my head as I do check them pretty regularly thanks to this forum. Went out and checked the tires, instead of my 95psi, they were all at 120PSI, the max pressure recommended on the sidewall. Spent Sunday am resetting the pressures back...........
Just a reminder: the pressure molded into the sidewall of heavy duty tires is NOT the maximum cold pressure, it is the MINIMUM to support the maximum rating of the tire. That is stated in the printed literature from the tire companies.
For car Size tires it is the maximum cold pressure the tire should ever have.
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Old 07-20-2018, 07:54 AM   #8
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Old-Biscuit,

Before being weighed I was at 95 PSI, after I set all 4 at 85 PSI. According to the Michelin spec I can go lower but I won't for now.

Initially I had the tires at 120, per Freightliner spec. That was horrible.

Using Michelin's chart and setting pressure was a great improvement!
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