I went out and bought a compression tester last night and when I did a compression test all cyls were bad. The two back cyls left and right were the highest with 55 and 30 psi the rest were at and around 15 psi. It seems that they all went dead at the same time. The timing belt is in good condition, and all the teeth are there. Heads, pistons, or cams? which do I look at first. Can the timing belt jump a tooth?