Trying to find an EVAP leak on my 93 AWD 4.0 liter.
I removed the hoses from the carbon canister and tried blowing into them. The one going to the engine seems blocked or there is a valve shut somewhere. The one going to the gas tank seems clear but I have to blow into the hose quite hard.
I blew smoke into the canister in the hose from the gas tank and smoke came out of the top of the canister, I assume this is where the fumes vent? I don't know, is the smoke supposed to come out of the top of the canister or is it faulty.
I'm hoping someone can point me in the right direction to find this leak and maybe explain how this system works. It seems that one could just plug the system to pass the EVAP test, or is there a sensor to show that it's plugged?
This is all new to me, I'm from the East Coast originally and never dealt with smog tests until now in California, the pitts!
Thanks for any help...