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Old 12-15-2015, 03:33 PM   #11
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Any tire pressure monitoring system will not save you from an actual blowout as a blow out is pretty instant. You may be running the cheap Marabombs and one just decides to separate or develop a knot. What monitoring systems do is monitor pressure and temperature then it's up to you to heed high temps or low pressures and act accordingly. I have the TST system ... it has saved tire damage twice in as many years. One low pressure alarm before I left a campsite we had stayed at for a few days ... picked up a roofing nail somewhere prior to arriving at the campsite ... the other low pressure alarm was due to a leaking valve stem.
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Old 12-15-2015, 05:03 PM   #12
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TPMS ?

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Originally Posted by dalford View Post
I have and use a TPMS on my fifth wheel.

The one time I had a blow out on my previous trailer, I was not using it due to the fact that it would occasionally loose contact with one tire and start beeping and drive me crazy. My DW asked, "Didn't you spend money on one of those tire monitor things?"

So now, I always use it and just reset it when it drops a signal, really no big deal. My question is from others experiences, how many times have you had a blow out with no warning from your TPMS? In other words, an internal failure that happened before limits were exceeded To trigger an alarm?
My experience was bad. Installed a new TPMS got it all set up and everything looked great. Was feeling satisfied and glad to have it. I ended up with two TT tire failures one on I-5 N. That was a blown tire and the TPMS did not indicate any change at all. The second incident was a very flat tire when I arrived home. The TPMS again showed to change from original setting.

I returned the TPMS and was more unsatisfied when I was charged a $35 restocking fee. I posted all of this information on the Forum some time ago. I have not wasted money on another TPMS and don't plan to do so any time soon.
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Old 12-15-2015, 05:09 PM   #13
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Had a blowout and alarm did not go off till a couple months notes later. Stopped using them after that.
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Old 12-16-2015, 10:26 AM   #14
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I'm installing TPMS on my Dolly and the rear tires of my TOAD.

As soon as I get it all working, I'll post an article on my web site.
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Old 12-19-2015, 04:31 PM   #15
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Quote:
Originally Posted by dieselguy View Post
Any tire pressure monitoring system will not save you from an actual blowout as a blow out is pretty instant. You may be running the cheap Marabombs and one just decides to separate or develop a knot. What monitoring systems do is monitor pressure and temperature then it's up to you to heed high temps or low pressures and act accordingly. I have the TST system ... it has saved tire damage twice in as many years. One low pressure alarm before I left a campsite we had stayed at for a few days ... picked up a roofing nail somewhere prior to arriving at the campsite ... the other low pressure alarm was due to a leaking valve stem.
X2 on the TST 507RV system. It has served me well with 5 blowouts and one fast leak due to a sidewall separation. The blowouts showed instantly and the sidewall fast leak warning came on at 5psi drop. This unit is worth it's weight in gold to me. I installed the relay unit on top of the tongue jack just to give me peace of mind as all were reporting just fine anyway.
Two of my total blowouts I never heard or felt and would have driven on a ways till much damage was done if it hadn't been for the TST 507 RV system.
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Old 12-20-2015, 11:16 PM   #16
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Thanks for the responses. I have been lucky thus far, 3 different trailers, towed over 10,000 miles and 1 blowout.

I have the TST system and since I have it I will continue to use it and monitor it. It seems more posters than not have a positive opinion on the monitors.

I don't want t be like the blow out I had. Did not know it even happened until an 18 wheeler pulled along side but did not pass. I'm wondering why until I look over and the driver is motioning to the back. Hopefully if I have another blow out at least it will inform me the air went away.

I do believe it will show me a slow or moderate pressure change as it does that now as I travel and the tires heat up or the air temp changes.

What I really like is that I can come to my trailer after it has been parked for a week or a month and switch on the monitor and get tire pressure readings without having to take a tire gauge to each one. That alone is a nice feature to me. Thx again...
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Old 12-21-2015, 12:06 AM   #17
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Originally Posted by buffalohunter View Post
My experience was bad. Installed a new TPMS got it all set up and everything looked great. Was feeling satisfied and glad to have it. I ended up with two TT tire failures one on I-5 N. That was a blown tire and the TPMS did not indicate any change at all. The second incident was a very flat tire when I arrived home. The TPMS again showed to change from original setting.

I returned the TPMS and was more unsatisfied when I was charged a $35 restocking fee. I posted all of this information on the Forum some time ago. I have not wasted money on another TPMS and don't plan to do so any time soon.
Which TPMS did you have? Just curious.
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Old 12-22-2015, 11:31 AM   #18
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I also have the TST system. Suffered 3 blowouts before we bought it. Heard the 1st two, no damage. Did not hear the 3rd one, lots of damage. Bought the system. 2 alarms on 5psi pressure drop, tread seperation both tires, no damage, 1 blow out, heard Bang and beep at same time, about a foot of tread from the center of the tire flipped out and tore things up as I pulled off the freeway. DW was unhappy, "I thought this thing was supposed to keep damage from happening?" Well honey, it can't tell that type of failure is about to happen, but it saved us 2 time before this. With that reminder,all was well again.
I won't leave home with out it.
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Old 12-22-2015, 11:46 AM   #19
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Quote:
Originally Posted by Blackhat6mike View Post
Which TPMS did you have? Just curious.
Post #16

tire pressure monitoring system
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Old 12-22-2015, 12:09 PM   #20
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Frankly I think the negative posters are expecting too much. Consumers carp at the manufacturers about battery life and about reliability. My 507 works well and when I turn it on before I start out it confirms to me that I am totally aired up and good to go. I used to lose might right duals periodically with the unit on the dash and discovered that by monstrous residential refrigerator was seriously weakening the signal from that side. Since it has alarms I just leave it on the kitchen counter (5'closer to the duals) and all is well.

But let's look at blow outs from a design perspective. When a blowout occurs, the tire pressure drops precipitously and instantaneously. If it is due to sidewall failure (more often than not) the pressure drop is very fast and catastrophic. But the units stop transmitting when removed from the tire in order to preserve battery life. So...you guessed it, as soon as the blowout occurs the unit stops transmitting. Now a warning is really impossible if it is catastrophic since nothing was wrong milliseconds before the failure and who cares if it doesn't warn you after the fact?

Tire failure due to slow leaks is more prevalent and as long as the drop is fast enough, most units will immediately transmit, but either way you can see the current pressure on the display and the alarm will sound well before low inflation pressure is reached.

Its a TMPS...not an angel on your shoulder!
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