Special Tool(s)

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

SPECIAL TOOL(S)

Feeler Gauge Set
303-D027 (D81L-4201-A) or equivalent

NOTE: Refer to the appropriate article in ENGINE MECHANICAL - 2.5L (EXCEPT HYBRID) , ENGINE MECHANICAL - 2.5L - (HYBRID) , ENGINE MECHANICAL - 3.0L (4V) or ENGINE MECHANICAL - 3.5L for the specification.

Inspect the piston for ring land damage or accelerated wear.

Fig 1: Identifying Piston With Ring Land Damage And Accelerated Wear
Courtesy of FORD MOTOR CO.
Using the Feeler Gauge Set, measure the piston ring-to-groove clearance.

Fig 2: Measuring Piston Ring-To-Groove Clearance Using Feeler Gauge Set
Courtesy of FORD MOTOR CO.