Spitting and sputters and backfires under hood after running about 20 miles when hot out but fine when cool outside

What is your question?

Only when it's hot out and trouble going up hills at night ac stopped All of the sudden driver window will not go up

What makes this problem better or worse?

It's worse when the weather is hot

How long has your 2000 Mercury Mountaineer had this problem?

About a month