Re: 2005 Escape knocking noise
If you hear a "Knocking" or "detonation" it is a term used to describe a situation where the timing of the cams on your Ford's engine are off. Usually, this is caused by a belt or chain that has slipped or has damaged teeth. Listen for what sounds like the marbles rolling around in a can of spray paint when you are shaking it up. Your 4 cylinder engine may also simply make a "pinging" sound if there is detonation or piston slap (the pistons are slapping against the side of the cylinder walls usually caused by detonation problems). If you notice this sound coming from your engine, you may need a timing belt adjustment or replacement. You'll need to take this to your mechanic to have the problem corrected.