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Old 11-11-2011, 07:21 AM   #15
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I'm sorry if this sounds rude, but:

1) What system is it?
2) How many pounds below the expected pressures were the tires?
3) How "Little bit of air" was needed?
4) Did the altitude change?
5) Did the temperature change?
6) Did your load change?
7) Did the time of day that the tires were checked change?
8) Did you call TST about your problems?

More info(information) is needed.
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Old 11-11-2011, 07:45 PM   #16
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Quote:
Originally Posted by jimkate View Post
Triker56,

When we installed our new TST system, we would have low tire pressure warnings for some tires in the mornings. That required removing the sensors to check the actual tire pressures. Finally we realized that the sensors were giving false readings.

Also, after a couple of thousand miles, we had two rear tires that needed a little bit of air. These two tires had Borg Warner extensions, and for some reason the TST sensors are made of a material that react with the material of the extensions, and they "weld" or corrode together. I destroyed both of my special sensor wrenches trying to remove the sensors, and finally removed the extensions entirely to be able to put some air in the tires.

So, for the above stated reasons, in future, my next tire pressure monitoring system will have sensors that allow me to check tire pressure and inflate/deflate my tires without removing the sensors

I experienced near exactly the same issues as you. When I first bought the system I had 4 out of 6 sensors that needed to be replaced. I had two of them loosen up and cause me to get to a garage for air. I had to remove my extensions because for some reason they would lose pressure but the tires didn't.

Also like you I had them corrode onto my valve stems making it impossible for me to remove so a garage had to cut them off. Getting them to replace the sensors is easy, getting them to step up to respond to a real issue is another story.
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Old 11-11-2011, 10:21 PM   #17
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[QUOTE=Dunner;1006726]I'm sorry if this sounds rude, but:

1) What system is it?

Answer: TST 510. The one with the sensors that you can't replace the batteries in.

2) How many pounds below the expected pressures were the tires?

Answer: If you're talking about the two or three sensors reporting that the tires were low, it was first thing in the morning. We'd stop driving at the end of the day with all sensors reporting that the tire pressures were fine. We'd wake up in the morning to find two or three sensors reporting that their related tires were substantially low, like twenty pounds or so. Once the sensors were removed, our tire pressure gauge applied to the valve stem reported that the tires were at perfect pressure.

3) How "Little bit of air" was needed?

Answer: If you're talking about when I broke my sensor tools trying to get the sensors off the Borg Warner valve stems because the tires were a little low, it was only an issue of 5 pounds or so. I like to keep my tires very even on pressure.

4) Did the altitude change?

Answer: nothing to do with my issue.

5) Did the temperature change?

Answer: nothing to do with my issue.

6) Did your load change?

Answer: nothing to do with my issue.

7) Did the time of day that the tires were checked change?

No, but again, nothing to do with my issue.

8) Did you call TST about your problems?

Answer: as I said, yes, and they responded well. And, as I have said, I have not had opportunity to test the system since to know if it is now functioning properly. All this was said in my first reporting.
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Old 11-12-2011, 05:46 AM   #18
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Originally Posted by cpat39 View Post
Have been looking at TSTtruck tire pressure and temperature monitor system 507. 507 is same as 510 system except it appears to allow user to replace sensor batteries. 510 requires sensor to be returned to TSTtruck for battery replacement.

Looking at 10 sensor system to monitor coach and toad tires. Coach is 36' long and I have heard some systems have issues with coaches over 30' in length.

Any comments about TST or recommendations for other systems will be appreciated.

I have the TST 510 system and love it. We have a 40' coach and also use it on our toad. I can use the short antenna and do not need the optional repeater.
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Old 11-12-2011, 08:00 AM   #19
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Thanks for the reply Jim. I was just throwing everything on the table for what the cause might be. Strange that the sensors still worked, yet gave the wrong PSI. I, too, would adjust if I saw 5 or more pounds +/- of my desired PSI.
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Old 11-12-2011, 08:28 AM   #20
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Hummm! Two reports of the TSY sensors corrode onto valve stems making it impossible to remove and had to cut them off. Makes you wounder how many more had this problem.

Many new sensors being replaced because they didn't work and some reporting to be off as much as 20 PSI.

Just saying. I don't think they would be on my to buy list. There may be several other tire monitors systems out there with a lot less problems if you are looking to buy.
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Old 11-12-2011, 08:32 AM   #21
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We have had the 510 TST system. I remove the sensors when storing. Small antenna works fine. Very satisfied customer! I do plan to have solid metal stems installed when we replace the tires next spring. I want to eliminate the stainless flexible extensions on the duals. I might add that I used teflon tape when I installed the sensors.
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Old 11-12-2011, 08:32 AM   #22
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I can't find it now, but I think I read that it would not void the warranty if you used a little anti-seize on the threads.
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