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1  Main Forum / General Discussion / Comparing Michelin tire with Firestone tire on: September 05, 2017, 08:00:00 pm
I wondering if any of you with good knowledge of RV tires would give me some advice.

After the tire separation of a Michelin tire (built near the time of a recall of similar tires) on our PC,  Ive lost confidence in keeping the other tires on the rig.  They are:
   Michelin LTX M/S*  (the * stands for a 2)
   LT 225 / 75R16    115/112R  DOT B3JH 009X

My local Firestone tire dealer is suggesting these as a replacement:
   225 / 75R16LT

From what I can find online the two seem to have the same features and load carrying rating. 

Since the Firestones are less expensive than the Michelins, Im tempted to go for them.

What do you think?

2  Main Forum / General Discussion / Re: First 2018 Phoenix Cruiser is in Inventory on: August 26, 2017, 07:16:33 pm
Does anyone know what tires are now installed on new PCs coming out of the factory?
Thanks,  Bruce
3  Main Forum / General Discussion / Re: First 2018 Phoenix Cruiser is in Inventory on: August 25, 2017, 09:31:50 pm
Not sure I like the non-Michelin tires but that is out of PC's hands I am sure.

I'd like to know what tires PC is using now, but cannot find that info on the current post.  Can you help me locate that?
4  Main Forum / General Discussion / Re: Backup camera system on: May 16, 2017, 02:50:46 pm
We had a similar problem with our backup camera.  The fix was to replace the camera with a new one.
5  Main Forum / General Discussion / Re: Four-year-old tire failure after 14,000 miles on: May 05, 2017, 07:13:13 pm
Thanks for your post on this.  The trusted owner of a local tire shop here told me the exact same thing this morning.  He has not yet seen the bad tire, so there may be more to this story after I bring it to him.

He told me that the most common cause of tire separation on motorhome tires in his experience is low tire pressure caused by failure of a valve stem extender.  He refuses to install them any more as it reflects badly on him when one fails even after he warns the customer against it.

6  Main Forum / General Discussion / Re: Desired 30A Cord Length? on: May 04, 2017, 08:44:46 pm
We've carried two 25' cords for 15 years.  Only used the extra 25' a few times and the last time was about ten years ago.  But, I like to know that it's available if needed.
7  Main Forum / General Discussion / Re: Four-year-old tire failure after 14,000 miles on: May 04, 2017, 10:19:57 am
Thanks for all the replies on this topic.  Looks like the previous advice I received re 80 psi on the rear duals was too high.  The 70 psi is likely a more appropriate level.
8  Main Forum / General Discussion / Re: Four-year-old tire failure after 14,000 miles on: May 03, 2017, 05:58:23 pm
Weve made it back to our home in Pacific Grove, CA without any more trouble.  We have a May 17th appointment with an RV service and repair center that was recommended to us by friends who have dealt with that center for years.  That appointment is just for them to do an inspection in order to make an estimate of the cost to restore the Sanicon system plus some motorhome body damage. 

In the meantime well be contacting a reputable tire dealer about replacing the failed tire or all of the existing tires.

Ron, youve asked some good questions, so Ill do my best to answer them here:

1.  We have a Pressure Pro TPMS that includes all six of the RV tires and the four on our tow-car (toad).  I always pay close attention to it and read the tire pressure before every leg of our trips.  That system has consistently given us accurate readings during the life of our 2552.  When we heard the loud bang on the bottom of the coach last week there was no immediate response from the TPMS.  Once we were quickly off of the highway and started moving at about 5 mph along the shoulder of the road, the TPMS monitor began to alert us to the tire failure.  We continued to roll forward for about 300 yards before we could safely pull into the abandoned parking lot just off of the highway.

2.  We do have the stainless steel braided rear tire valve extensions that came with the rig when we purchased it new.  I dont think a failure in the extension was a cause of this tire failure.  The tire tread failure did break the extension off of the valve, but the TPMS did not signal any loss in pressure until after the loud bang occurred.  But, Im considering replacing all of those extensions with solid steel or brass extensions as has been discussed on this forum recently.

3 & 4.  During our first big trip with our 2552 in 2014 both the RV and toad were fully loaded up as much as ever.  We stopped in Grants Pass, Oregon to have Hendersons Line-Up perform their Road Performance Assessment that included weighing all four corners to determine proper weight distribution.  Our 2552 easily passed that test and they recommend 70 psi on the front tires and 80 psi on the rears (and weve continued to follow that advice).  I dont have the exact weights measured on that assessment, but we were comfortably within all of the limits.

5.  We didnt measure the pressure on the bad tire after it lost its tread, but a lot of air came out when the Good Sam service truck driver removed the core in the valve stemit was not nearly empty.

Well post again on this topic as we discover more.

9  Main Forum / General Discussion / Four-year-old tire failure after 14,000 miles on: May 01, 2017, 01:23:11 am
Last week one of our original four-year-old Michelin tires failed after only 14,000 miles since we purchased our 2552 new from the factory in 2013.  The tire cap (tread) tore away from the rest of the tire.  The Good Sam Roadside Assistance driver told us he has seen many of these failures recently.  The tire is a LT 225/75 R16.  Michelin issued a recall on this type of tire just about the time that we took delivery of our coach, but based on the date of manufacture our tires were not included in that recall.

Here is what happened:
We were traveling on the very busy Highway 101 in Southern California at about 55 mph when we heard a loud banging sound come from below the coach.  To me (the driver) it first felt like we had run over something on the road.  I quickly slowed down and realized that we had a tire failure.  Fortunately the surrounding traffic recognized that we had a problem and slowed to allow us to move to the wide shoulder.  There was no problem steering the coach and we continued to move forward slowly to a nearby highway exit.  Luckily we found an empty parking lot just off the exit that we were able to enter towing our Honda CR-V.

We were shocked to see that the left rear outside dual wheel tire was completely bald.  The separated tread caused the loud banging that we heard.  We could immediately see some damage to the coach body on both sides of the wheel well and to the Sanicon compartment door.  Inside of the compartment we could see there is major damage to the switches and wires controlling the tank valves and the macerator pump.

A call to Good Sam Roadside Assistance got a tire service truck to us within 45 minutes.  The very helpful roadside assistant person replaced the bad tire and wheel with the onboard spare.  After tucking away some loose coach body and Sanicon parts, we were back on the road for another 150 miles to our desired campground for our scheduled four-day stay.

Once at our campsite we realized that all of the Sanicon and holding tank electric valve switches were gone or broken.  We cant even use the 3 emergency dump valve without serious work opening the individual tank valves manually.  So, weve been very careful in the amount of water that goes into the tanks until we can get the coach into a repair facility.  Fortunately the tanks were each below 1/3 full before this event.

Were grateful that no one was hurt and we could continue the trip with only a couple hours of delay.  Tomorrow well be driving the final 150 miles of this trip and will begin the adventure of getting our coach back in shape.

Bruce and Sharon
10  Main Forum / Tips and Tricks / Re: electrically operated dump valve on: April 29, 2017, 05:41:18 pm
Thanks for relaying Kermit's caution in trying to override the electric operating valves.  We'll get by for two more days in this fully equipped campground by putting as little as possible into the tanks.

Yes, having redundant control switches would solve the problem.

Yes, Earl's video does show how to bypass the Sanicon system to dump, but we still need to open the individual tanks valves.  We can't do that before rewiring a control switch for them.

We'll make a separate post later on how this problem happened.

11  Main Forum / Tips and Tricks / electrically operated dump valve on: April 29, 2017, 02:17:14 pm
Can the electrically operated dump valves be opened manually?  We had a rear tire blowout that wiped out the Sanicon system and switches to open the valves. 

We made it to our intended campground and plan to stay here two days before going home.  Would like to use the manual dump method to empty the tanks, but I cannot seem to open the valve manually.

12  Main Forum / General Discussion / Re: Curious as to those of you who down sized on: April 28, 2017, 07:53:50 pm
We've been RVers for many years.  Started with a Dodge work van that we converted to be a camper that worked great for many years until we retired.  We then had two different small trailers during a five year period, traded the last for a 32' gas class A that we used for three years until we traded it for a 37' class A diesel pusher that we lived in for six months a year until we decided to limit our RV trips to weeks instead of months.  That's when we purchased our 2552 Phoenix Cruiser and tell folks that we've "right-sized" for our stage in life--mid seventies.  We loved our diesel pusher, but found it difficult to find a storage lot for it near our home to male it easy to load and unload before and after our many shorter trips that we were beginning to make.  We can now keep the Cruiser near our house when not out on a trip.
The 2552 is perfect for us now.
__Bruce and Sharon
13  Main Forum / General Discussion / Re: Extended 2552 on: April 07, 2017, 03:01:54 pm
We've liked the ride in our 2552 from the time we took delivery in 2014.  It did have a little more steering slop at highway speed than I wanted, so we had Henderson's Line-Up do their "Road Performance Assessment" for us during our first big trip.  We had them install the "Safe-T-Plus Steering Control" and that practically eliminated that small tendency.
Henderson's told us that the shocks on the rig were good just as delivered to us--no need to change them.
We've been happy with all ever since.

--Bruce and Sharon
14  Main Forum / General Discussion / Re: Tire pressure? on: April 07, 2017, 02:33:21 pm
Soon after we took delivery of our 2552 we had Henderson's Line-Up in Grants Pass, OR do their "Road Performance Assessment" on the rig while on our first big trip.  We were very pleased with their work.
They suggested 70 psi on the front tires and 80 psi on the rears, and that has worked well for us.
Here is the link to Henderson's:

Happy trails,
Bruce and Sharon
15  Main Forum / General Discussion / Re: First night camping on: March 10, 2017, 12:18:47 pm
Portable air compressor:
After using many other tire inflators over the years I found them too large to pack on an RV trip or not powerful enough to last very long.  I now use this:

Markwort Volcano 120 Volt Air Erupt Inflator
Brand: Markwort
Model: AHT626
UPC : 016562590415

I recently topped off the front tires on our PC from 60 psi to 70 psi very quickly.  This inflator is small and doesn't make much noise.  It's a powerful little thing.

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