Yikes!! No air in spare tire

So this morning the weather was finally nice in the 60s so I decided to check the air in my tires as I normally do every 3 months. So I went to the gas station to pump them. Before heading out I decided to lower my spare and air check that as well.

Needless to say my 4 tires were fine with air, but when I went to check the air in my spare tire, it showed zero air pressure. I used both the air pump gauge and my portable digital gauge and both read zero. I was shocked, I know air gets lost in tires over time, not not that much. Needless to say I pumped the spare up. Now I have a 2010 and haven't checked my spare tire's air pressure since I bought the truck back in late 2010. Back then I checked the air pressure in the spare and logged it in a notepad when I first got the truck home as a look over. I was more rigorous about things back then with a new truck.

it would have sucked if I got a flat and actually needed the spare tire. Needless to say I will be checking the spare tires pressure more often than every 7 years.

So for everyone out there, check the air pressure in the spare!!!

 

I air up trucks' spares at every oil change I do. 10-15psi loss per oil change is about normal. Doesn't take long for them to go flat

 

10-15psi per oil change seems like a bit much. I'm under the impression 1-2psi loss every 6 months

 

So my 2015 has a sensor in the spare? I always thought it didn't.

 

Just my experience on hundreds if not thousands of trucks

 

No.
Spares do not

 

I drop the spare twice a year, clean it and air it up. I also put 4 pieces of sheet rubber on the tire where it contacts the frame, they take that rubbing indentation out of the tire.

 

Noted. thank you

 

I am glad you understood my description, I snapped a pic the last time I dropped it down but have been too lazy to transfer them to the computer.

 

That's what I thought. Thanks brother!

 

Use phone if that's what you used to snap pic.
I've never used a pc for T.World

 

My 07 had TPMS in the spare whereas my 15 does not. they stopped sometime around 2011? or so.

 

Odd, but my 2009 RAV4 did have a TPMS Sensor in the spare, since mine would show a low tire every so often, and it was the spare that needed air.
I think my 06 Tacoma does as well, but I'll check to be sure.

 

Not totally true... my 07 has one. The spares had the sensor for 3 to 4 years beginning in 05. It's a pita though... when the temp drops in the winter the tires heat up when driving but the spare stays cold... just enough pressure difference to trip the $%*&# light!

 

Inflate the spare 5 psi higher after you set your baseline pressures at spec, and you won't have this issue. If you carry a gauge in the truck, it's not a big deal to let a bit out if / when you need to use the spare.

 

i'll try that. Is psi difference that triggers the light 8 psi?

 

Air it up to 80 psi and put two chucks on an air hose. Poor man's OBA. Air it down if you need to actually drive on it.

 

My 08 has a tpms sensor for the spare.

 

So it can blow up in your face?