Question on TPMS
#1
Senior Member
Thread Starter
Question on TPMS
I have a 2017 XLT with the TPMS set to 35 psi. The spare doesn't have a sender, so I am going to put a sender on the valve stem for my TPMS on my travel trailer. (At least when towing the trailer I will know the truck spare is inflated, or I can turn on the trailer TPMS occasionally just to check the truck spare.) What is the upper and lower pressures at which it will alarm? I want to match those numbers on the spare.
#3
Ford Truck Lover
The sensors always provided pressure, the system was set to show a too low or too high warning at certain pressures.
#4
Blunt
I'm looking at aftermarket systems for my travel trailer so I can stick a display on my dash as we have some long trips planned. Since it's a tandem axle, I may not notice right away if one of the tires starts getting low. Seems all the ones being sold now show PSI readings. Not sure what kind of system OP has though. Transmission frequency will also need to be checked.
#5
Senior Member
Much simpler solution. Drop the spare, turn it over, rehang with valve stem down, now it is simple matter to check the pressure with a gauge when you check the other tires. You do check the other tires don't you?
Side note I run my spare at 10 psi higher than the tires on the ground so if it loses a little air no big deal, if I ever have to install it I will bleed it down to correct pressure.
Side note 2 If you have a Discount Tire store near you they have a drive thru lane to check and adjust pressure for free I use it once a month.
Side note I run my spare at 10 psi higher than the tires on the ground so if it loses a little air no big deal, if I ever have to install it I will bleed it down to correct pressure.
Side note 2 If you have a Discount Tire store near you they have a drive thru lane to check and adjust pressure for free I use it once a month.
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SPOAT (07-27-2017)
#7
Senior Member
Thread Starter
The TPMS system I have on the travel trailer is a TST 507RV system. I have used it about 6 years. It works great. It saved me from a possible RV fire once when the Class C I had back then had a brake caliper dragging. The wheel was so hot when the TPMS alarmed and I stopped that it was smoking.
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#8
Blunt
OP here. So, unless I actually have the tire pressure screen showing on the dash, the truck has no way to alert me that a tire is low? That doesn't seem right. It seems like it should have something to get your attention.
The TPMS system I have on the travel trailer is a TST 507RV system. I have used it about 6 years. It works great. It saved me from a possible RV fire once when the Class C I had back then had a brake caliper dragging. The wheel was so hot when the TPMS alarmed and I stopped that it was smoking.
The TPMS system I have on the travel trailer is a TST 507RV system. I have used it about 6 years. It works great. It saved me from a possible RV fire once when the Class C I had back then had a brake caliper dragging. The wheel was so hot when the TPMS alarmed and I stopped that it was smoking.
#10
Senior Member
I have attached a part from the manual about this. Not that I'm one of those RTFM guys, because I don't lol. Unless I am looking for something specific. However, this thread has prompted me to look into the TPMS system, and there is some interesting info I didn't know. For example, if the low tire light stays illuminated, of course you have a low tire. But if it flashes at startup for one minute then stays lit, this indicates that you have a faulty sensor. Battery could be dead. The sensors do not turn on until you reach 20 MPH for two minutes.
Please, no lectures from any Manual ***** about RTFM. lol