check engine oil for water and check radiator for oil
You don't. A 1991 Cavalier did not come with airbags.
If it was removed then YES.
Behind the glove box.
Replacing the head gasket on any vehicle is a long and complicated process, however if you wish to see basic step-by-step instructions go to the related question on the right side of the page "How do you replace a head gasket?"
70 ft-lbbs
Behind the glove compartment.
Possible problems: 1. Clogged Fuel Filter 2. Water in Fuel A. Bad Fuel Supply B. Blown Head Gasket
head gasket blown. reface the cylinder head and replace gasket. that should fix the problem
You don't, you replace it.
70 ft-lbbs
Check the fuse box.
Around 2300-2500 lbs