1997 Geo Prism mileage: 189,000. While driving the other day I experienced a sudden loss of power associated with a clacking noise. I removed the timing belt cover and all appears well, but after pulling the valve, cover (loose, lousy gasket allowed some blow by and leakage) found plugs 1 & 3 high and dry, 2 & 45 drowning in oil. Where do I go next?
We think that you may be having internal engine problems. Do a compression check; also, verify that the cam rotates when the engine is turned over. There is a remote chance that you may have a piston failure. A piston failure would account for the oil in the spark plugs that you described.