Re: New to DRW truck need help
A number of points to cover here.
Why would you only use TPM sensor on the outer dual. You can get a nail on either dual. If you pick up a nail on the inner tire you might get a warning from the outer sensor after the inner tire has failed and you have damaged the
outer tire due to 100% overload.
Don't let the end of the extension hose "just lay" in the hole. It will flop around and you will probably see either the hose or valve or the seal between the hose & valve fail. You could then loose air and fail both tires. You should firmly attach the outer end of the hose.
My hoses have "L shaped metal brackets attached to the bolt on axle covers. When I check the air I support the hose so I am not just pushing against the mounting brackets. I have 17,000 + with zero leaks. My TPMS is a special system with sensors similar to what is on new cars. Sensors inside the tires that bolt to the rim through the valve hole.
You should not be using rubber stems as most of those are rated only for 65 psi MAX cold inflation. You should never use rubber stems if you have TPMS or hose extenders as the extra weight can flex and fail the stems. General info on valves
HERE.
I have run TPM sensors on the ends of hose extenders with no problems but have only tested for about 1000 miles so far.
The law requiring TPMS on new vehicles is for vehicles rated at less than 10,000 GVWR so that is why you didn't get TPMS from your OE.