I have a 95 taurus 3.0 in the last 6 months had new spark plugs and wires, distributor cap and rotor, new fuel filter new battery and water pump, new muffler, transmission service. The problems I have are i can't seem to figure out the size for the smaller water pump bolts. The second is that one by one it seems that the cylinders need new spark plugs they just gets fouled. I'm losing no oil and no coolant. It seems that if i park over night with 3/4 tank of fuel next day i have 1/2 tank. I can't find any fuel leak. I'm getting 12-13 mpg it idles really high at times i put the code tester on it and the only codes i get are for the EGR and cannot control RPMs. Sometimes on the highway it jerks as if the cylinders are loading up. This is killing me on fuel. HELP.