my gas cap will not go back on after getting gas. i know the CEL will appear. as i did a search i found this thread about the gas cap is good for 120,00 miles. i dont remember getting this letter from GM. can anyone help me out. the car just went out of factory warranty. but i do have the ext warranty with a $100 ded. i dont want to pay 100 for a gas cap
Gas Cap Warranty
who can fax me a copy of this letter?