Wheels and Tires

Think I need a new tire valve core?

  • Last Updated:
  • Dec 23rd, 2020 7:31 pm
[OP]
Newbie
Oct 4, 2016
69 posts
9 upvotes

Think I need a new tire valve core?

Hi.

Yesterday night I noticed my left front was low. I pass by the car everyday on the driveway but only noticed it yesterday. Maybe I wasn't paying attention before or maybe there was a leak over a day or so.

Anyway, the right rear was looking a little low as well and I did that one first. Inflated fine. Came over to the LF and turned on the compessor and the needle shoots all the way up. When I actually connect the hose sometimes it shows zero PSI and sometimes it shows 20-30. When I turn off the compressor, sometimes the needle slowly falls down to 30-40 and sometimes it immediately drops down to zero.

Hooked up the machine to the other two tires and it's fine.

Did a little research on here and found that the valve stem core could be the issue and you can get the four way tool to change them out at CT for 6 bucks and cores for 2 bucks. From what you can tell, do you think it's best if I go try that first?

Thanks for the suggestions.

By the way, sprayed soapy water on the valve and nothing so doesn't appear there's a leak from the valve stem. And I haven't actually left the machine running yet for a few minutes to see if it will actually inflate the tire. And I suppose I could drive down the gas station and pump up with their machine and see what happens.


5 replies
Deal Addict
Jan 17, 2009
3121 posts
3062 upvotes
Toronto, Ontario
Last time I had this issue it was the compressor attachment piece that was messed up. For some reason it only acted up on 1 tire and not the others. I would try a different compressor first since that's the easiest.
Member
Jun 10, 2008
466 posts
334 upvotes
Halton Hills
Not all tire valves are created equal. You might have to jiggle your tire chuck to get it to read sometimes.
[OP]
Newbie
Oct 4, 2016
69 posts
9 upvotes
Went to the gas station, hooked it up and it read 30 psi. Inflated the tire and now I wait to see what happens.
Deal Addict
User avatar
Nov 7, 2016
1729 posts
788 upvotes
Ontario
Most likely the compressor end isn't seated properly/working right...
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[OP]
Newbie
Oct 4, 2016
69 posts
9 upvotes
Been a few days and so far so good.

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