back tire leaking

[stoor]

the problem is that air is leaking out of the valve were u pump ur tire up and putting the cap on doesnt stop any air from leaking out

 

[sixds]

the core is bad, you can take one out of an old tube or car if you have one around

 

[76GMC1500]

Or, you just have dirt in it. Remove the core, clean it, and reinstall. Don't forget to clean inside of the stem, too.

You can buy new cores at the car parts store, they are cheap. Some tubes use a weird core with a long spring on it, though. I don't know where to get those.

 

[Bunya]

...Some tubes use a weird core with a long spring on it, though. I don't know where to get those.

Doesn't matter, they're all interchangeable. Those long ones just use a different design.

 

[76GMC1500]

Good to know.