let me start off by saying i have the upgraded alternator on my car and i have added a couple extra ground cables too.but the other day when it was 97 degrees out side i turned my a/c on and while on the four lane i noticed my temp hand going up to 3/4 and my volt hand was showing on the low side and also noticed my car not having the power it should so when i got home and pulled my car into my garage i raised the hood and i smelled gas fumes real bad but today i ran the a/c and the car ran fine but when i parked i smelled gas fumes but with the a/c off on the other days i drove it i smelled no gas fumes can some one please help wit hsome kind of advice thanks