1997 mitsubishi galant 165,000. Black smoke out tail pipe, hard to start when it sit for a while, 5-8 miles a gallon, exhaust smell up front. Have done fuel injection flush, changed spark plugs, change idle control value. What else can I do????
car is getting 5-8 miles a gallon, black smoke out tail pipe, hard to start, on 1997 Mitsubishi Galant
change the head gasket and take the heads to machine shop to be test it for worn valves seals