P0441

[rican4lfe]

Before ppl start jumping down my throat.... I know what the code is and what can cause it... also know the code is usually trigger by some sensor or line from the canister to the engine (no no gas cap)... I want to know what have been the most likely source of this problem for the yukons and hoes..... All this before I start buying and changing my whole evap sys from the canister up.. Thanks...

 

[JennaBear]

Like you said, the gas cap is the most common problem and some folks even have to have the dealer give them a new one. Tighten it down, and clear your codes and see if it pops back up.