Close
Q:

Smelling gas inside car. No visible leaks on 1999 Pontiac Montana

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
The fuel tank pressurizes and gas smell is strong inside car.More in hot weather. Fuel tank blows back hard when the cap is removed.
(1) Answer
(1) Comments
The most likely cause of your concern is a malfunctioning evaporative emission system. This system contains the raw fuel vapors and burns them in your engine when the computer opens a valve electronically. A clogged carcoal canister may be the culprit, but a professional that understands the system needs to give it a look.