Ford Taurus/Sable 1986-1995 Repair Information

Knocking Pistons and Rings


When the pistons and/rings are constantly making noise, check for the following, as necessary:

Misaligned connecting rods
Out-of-round or tapered cylinder bore
Loose or tight ring side clearance
Build-up of carbon on the piston(s)
Piston-to-cylinder bore clearance is excessive
Broken piston rings
Loose or seized piston pin(s)