Pressure Pro Again or another test

Topic: Pressure Pro Again or another test (Read 1854 times) previous topic - next topic

Pressure Pro Again or another test

August 04, 2012, 02:08:52 pm

Today, I got out the Pressure Pro update kit, using 6 new inserts along with the tool (Tool is a Great Neck Nut Driver, 6MM with the socket removed and turned on a lathe for desired diameter) Inserted the 6 new seals, and after double checking my tire pressure at 110 front and 105 rear, installed the sensors. Will report as to holding air pressure works out. Crossed my pinkeys.
Dave M

Re: Pressure Pro Again or another test

Reply #1 – August 04, 2012, 02:48:23 pm

Dave,

We have one sensor on the coach that Steve had to work on the seal; it has held now for over a month (one of the tag sensors, so 75 psi).

One on the car has a slow leak, about 3 psi/week. That's next to do for a new seal. Pinkies crossed for both of us.

We also had the 12V power cord short out on us after less than a month. Had to send the old one back at our cost to get a replacement.

Michelle

Re: Pressure Pro Again or another test

Reply #2 – August 04, 2012, 03:07:18 pm

Just for info if wanted, the "Tool" was a 6MM Nut Driver end socket cut off, machined down to .260 OD and center hole is .155 ID
For power cord, I use my old Motorola cell phone charge cord, mini USB to cigarette lighter socket. Hope one day to find / get 12 VDC in overhead and paste the PP up there somewhere. Using on dash is not the best place to receive signals from rear even on a 36' fiberglass coach. Hope I do not need the repeater, but that may not be needed if this mess keeps leaking, the dumpster will have an addition.
Dave M

Re: Pressure Pro Again or another test

Reply #3 – August 04, 2012, 03:46:14 pm

Just as suspected, of the six, four are holding after three hours, two are not, Just wonderful. not going to touch anything just yet, give it a few more hours to see if the tire falls off the rim. They all held air very nice for months, right up until the PP were screwed on with the new wonderful seals.
Did notice the last seals did not fit like the first ones that seemed to fit more snuggley. Last ones fit like the the origional, slopy loose.
Dave M

Re: Pressure Pro Again or another test

Reply #4 – August 04, 2012, 05:03:32 pm

Dave,

Did you use Teflon tape on the valve stems?

Re: Pressure Pro Again or another test

Reply #5 – August 04, 2012, 05:05:58 pm

Dave,

I also have the PressurePro and have had zero leaks. Wonder if yours are under/over torqued so that the O ring is not seating of being deformed?

I put mine on light finger tight. Used soap solution to check for leaks and tightened just a little more if it was "blowing bubbles".

Brett

Re: Pressure Pro Again or another test

Reply #6 – August 04, 2012, 05:32:43 pm

I have had pressure pro on two different coaches and never had any problems. Chappell

Re: Pressure Pro Again or another test

Reply #7 – August 04, 2012, 06:00:04 pm

I've had Pressure Pro for 3-1/2 years, no leaking problems. Had one separate at the case weld when tighting. They replaced it, no questions asked. The rubber gasket sealing system is extremely simple. If I had a number of leaking problems I would strongly suspect faulty stem/valve arrangement or improper installation.

Re: Pressure Pro Again or another test

Reply #8 – August 04, 2012, 06:06:42 pm

I am tickeled to pieces that everyone is so excited and pleased with the PP setup, I think I have solved or atleaset recduced the amount of leakage on one of the two leakers, but the other is still the same, leaks 15psi in under 2 hours, I am going to try a new seal.
Dave M

Re: Pressure Pro Again or another test

Reply #9 – August 04, 2012, 06:12:31 pm

OK, New seal, very nicely centered, screwed on very softly but almost firmly, 106psi at 1805 local.
I need to hire a local idiot to preform this magic task as I clearly am too stupid to screw on this sensor as PP bright bulbs keep telling me.
Dave M

Re: Pressure Pro Again or another test

Reply #10 – August 04, 2012, 07:04:56 pm

A nervous IT IS HOLDING after an hour, did install new seal, that seems to have solved it, not saying it is done, but by tomorrow I should have a better idea of yea or nay.
Not convienced thes PP devices are worth the P I T A this one has became. Next put the 4 on the toad. The toad will have to wait until I feel better about this crap.
Dave M

Re: Pressure Pro Again or another test

Reply #11 – August 04, 2012, 08:50:14 pm

I do not use them. I think they are just a problem waiting to happen. Weight on the end of the stem spinning around.

Re: Pressure Pro Again or another test

Reply #12 – August 04, 2012, 09:27:44 pm

Dave, your Marine Corp tolerance is beginning to show.

Re: Pressure Pro Again or another test

Reply #13 – August 04, 2012, 09:45:23 pm

Bill, you might be right on that one. However after a few hours, neither of the leakers have lost any pressure according to the PP read out, all 4 drive axle tires holding at 105 psi, fronts at 110 psi, now in the morning maybe all will be flat, it so, they are coming off and I surrender.
Mo later
Dave M

Re: Pressure Pro Again or another test

Reply #14 – August 04, 2012, 09:49:16 pm

then take it for a drive and see it holds after a short run down the road

Re: Pressure Pro Again or another test

Reply #15 – August 04, 2012, 09:53:20 pm

I do not use them, I even had the PP page added to my CL 240 but between trying to set up the page on the Slverleaf and hearing about the problems I just thought it better to monitor the tire pressures ever day before departure and while traveling.

Tony

Re: Pressure Pro Again or another test

Reply #16 – August 05, 2012, 01:37:20 am

Tire pressure monitors can help prevent a tow-car from be badly damaged or totaled, if a tire loses air while being pulled down the road. Tires have been known to go flat without any awareness of motorhome driver. And prolonged dragging down the road can cause major damage or fire. A powerful motorhome pulling a lightweight tow car may not drive differently with the increased drag.

But we would hope a passing car would let us know we have a problem back there, that is if the passing car can catch up and pass our fast moving motorhomes.

Pressure Pro sensors only seal to the top of the valve stem against the inside red or black rubber insert. They cannot seal on the straight threads of the valve stem, but Teflon tape or anti-seize will insure that the Pressure Pro sensor will easily come off the valve stem.

A good seal will be compromised if the valve core is too long and sticks up too far preventing the sensor from screwing down far enough to seal against the rubber. And if the valve core is too short, the Pressure Pro rubber insert will not press down on the valve core and there will not be a pressure reading.

Re: Pressure Pro Again or another test

Reply #17 – August 05, 2012, 09:19:14 am

I believe you can not protect against everything and there have been way too many issues with PP causing leaks. So, I check my tires. I put on aggressive off road tires on the jeep as well. They are made for mud and rocks so that the likely hood of them going flat is less but I know it can happen. I usually stop every two hours and walk around the coach and tow and as a side benefit the bigger tires on the jeep can be seen from the camera I have up front. Life is not immune from risk. We try to eliminate as much as we can. I think that if I ever got a PP type system it would be internally mounted as they do in the new cars since 08. In fact that is federal law now so why are we still sticking them on the valve stem when the Auto guys have them inside the tire. I am sure there has to be a way to get them mounted inside on a motorhome.

Re: Pressure Pro Again or another test

Reply #18 – August 05, 2012, 09:25:10 am

Quote from: John S – August 05, 2012, 09:19:14 am

I think that if I ever got a PP type system it would be internally mounted as they do in the new cars since 08. In fact that is federal law now so why are we still sticking them on the valve stem when the Auto guys have them inside the tire. I am sure there has to be a way to get them mounted inside on a motorhome.

TST systems now has that style. $79 apiece. Scroll down the following page

tst systems

Michelle

Re: Pressure Pro Again or another test

Reply #19 – August 05, 2012, 10:19:48 am

I wonder why there are not alternatives to the valve stem type sensors, either internal or external. No ultrasonic type external monitors that would measure rigidity of tire? Is it possible to use external type sensors on a Crossfire system? That might be a way to avoid problems with mounting weights on end of valve stems.

Re: Pressure Pro Again or another test

Reply #20 – August 05, 2012, 10:30:04 am

Quote from: Chuck Pearson – August 05, 2012, 10:19:48 am

I wonder why there are not alternatives to the valve stem type sensors, either internal or external. No ultrasonic type external monitors that would measure rigidity of tire? Is it possible to use external type sensors on a Crossfire system? That might be a way to avoid problems with mounting weights on end of valve stems.

I have Crossfire on my U225 and have been wondering whether a TPS system will work on it. The Crossfire equalizes pressure across two drive tires and if one blows out it will (he says, confidently) keep the other tire from losing pressure. But it's bound to lose some and a TPS system would detect that.

Craig

Re: Pressure Pro Again or another test

Reply #21 – August 05, 2012, 11:57:33 am

Between the new flow through and internal sensors it looks like I will be buying TST again. My old system has bad sensors, seals and worn out batteries and I planned on replacing it anyway. My biggest problem has always been having to remove them to add air. That's when they get damaged or leaks - especially with the anti theft design. My only nit pick is the display should offer RV and 5ver display options aside from a semi...

Re: Pressure Pro Again or another test

Reply #22 – August 05, 2012, 04:47:50 pm

OK, nearly 24 hrs since installed the 6 on coach, fronts hold exact fine, rear after replacing a new seal , so far they are holding 103-104 out of 105 target, will give a longer time to see how it goes. This AM, I also installed the 4 on the F150, and they are holding after 6 hours.
Sure not a warm fuzzy connected with these poorly engineered wannabee pressure sensors.
I expect they will leak steady a pound or so a day, if so, they will be a bad dream and disapear.
Delighted that some owners are having the wonderful luck with them, I aint.
Like others, maybe a model for inside the tire bead will appear that works and does not LEAK.
Dave M

Re: Pressure Pro Again or another test

Reply #23 – August 05, 2012, 06:50:04 pm

Dave M. said "I expect they will leak steady a pound or so a day, if so, they will be a bad dream and disapear."

Dave,

You are a pessimist. That pound difference could very well be due to a change in ambient temperature.

Re: Pressure Pro Again or another test

Reply #24 – August 05, 2012, 07:11:12 pm

Dave,

Give them a few days and consider the ambient temperatures. Stuff I have read indicates that pressure will change about 1 psi/10 degree F. Sunshine or shade on a tire makes a big difference.

I tried a brand new TST TPMS system on our first coach. It detected problems on two tires. Unfortunately, it probably caused the problems as well by working the stems until the grommets leaked. Sensors also quit working properly in subfreezing temperatures. Benjie now has my old TST system. He replaced a bunch of sensors. He may report how it has worked for him.

Our current coach came with Pressure Pro. A sensor on the toad deflated a tire on the toad twice during the days we inspected the coach. One of the brand new tires installed by Herman Power Tire Company went flat before we picked up the coach. I removed the PP and threw it in a box.

I check each tire before we begin a trip. I thump the tires and/or check with an IR thermometer every 1 1/2 to 6 hours while traveling. I generally need to add air before a trip when the temperature drops in the fall or when we travel far north in order to meet the appropriate cold tire pressures for our weight. We take some risk without TPMS, but our manual system has worked fairly well for many professional drivers for a long time.

Other folk have been very pleased with TPMS. Use whatever keeps your tires and your "comfort bag" properly filled.

Affiliate Notice