The starter is cranking, but the engine wont fire. The battery is ok. Last night I was banging around on canister looking thing next to the fire wall on the pasenger side and it fired up and drove it home. I thought i was messing with the fuel filter but after researching fuel filters I realized that wasnt a filter. Im also concidering that this might be a heat issue. The other day we were in the triple digets. when I opened the hood things might have cooled down and thats why it started. IDK please help.