Question 1

will this work on cars that do not have the TPMS sensors?I never had a car with TPMS so I dont know anything about their valve stems.

Accepted Answer

To summarize and put together into one answer what several others have said in part, all tire valves, whether older standard type (can be rubber or metal) or newer TPMS types have the same Schrader valve core. That's why this tool can be used to deflate a tire without removing the valve core or pushing on the Schrader valve with a small screwdriver (takes  forever) to deflate the tire for purposes of removal from the rim.  A Schrader valve doesn't know if it's connected to an older non-TPMS or a newer TPMS tire valve LOL.

Question 2

is this hands free automatic or you must hold it down?  for the ones that are.. does it damage to leave a tire valve spring compressed for days?

Accepted Answer

It screws on and then you can let go while it deflates. I would not recommend leaving them attached for more than 10-15 minutes at a time. That would weaken the spring in the valve. I pretty much only use them when servicing tires with TPMS sensors and am concerned about damaging the sensor by removing the valve core - so if I were to damage the valve spring, I'd end up needing a new sensor anyway. Cheap rubber valve stems just get replaced if the core won't come out easily.

Question 3

What metal is this made from?

Accepted Answer

Steel, does get a little surface rust over time.

Question 4

Will this deflate tires all the way to 0 PSI?

Accepted Answer

Yes absolutely! I'm an aircraft mechanic and need to deflate tires before removing from an aircraft. Some are up to 230 psi so using the method of removing the valve stem gets dangerous as it can shoot out of there with a lot of force! I now use these to deflate to zero before wheel removal and also at home I have a tire machine for autos. I use them to get all the air out before breaking the bead of the tire. Wish I had these years ago!!! They work extremely well...

ASIN	B002NEUOGG
Best Sellers Rank	#68,432 in Automotive ( See Top 100 in Automotive ) #57 in Tire Valve Tools
Brand	Lisle
Customer Reviews	4.8 4.8 out of 5 stars (1,433)
Date First Available	November 20, 2009
Item Weight	0.8 ounces
Item model number	19860
Manufacturer	Lisle
Manufacturer Part Number	19860
Model	19860
OEM Part Number	19860
Product Dimensions	4.25 x 1.88 x 1 inches

19860 Tire Deflator

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Specifications

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