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WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

Remove the cylinder head(s). Refer to CYLINDER HEAD, REMOVAL .

Fig 1: Valve Spring Compressor Components
Courtesy of CHRYSLER GROUP, LLC
Position the Valve Spring Compressor Adapter (special tool #10224, Adapter, Valve Spring) (2) in the Valve Spring Compressor (special tool #C-3422-D, Compressor, Valve Spring) (1).

Fig 2: Compressing Valve Spring & Locating Valve Retaining Locks
Courtesy of CHRYSLER GROUP, LLC

NOTE:
Number 3 cylinder intake valve spring compression shown in illustration, all other valves similar.
Compress the valve spring (3) and remove the valve retaining locks (4).

Fig 3: Valve Spring & Valve Spring Retainer
Courtesy of CHRYSLER GROUP, LLC

NOTE:
If the springs are to be reused, identify their positions so that they can be reassembled into their original locations. Number 5 cylinder exhaust valve spring shown in illustration, all other valves similar.
Release the valve spring compressor and remove the valve spring retainer (1) and valve spring (2).

Fig 4: Valve Spring Seat
Courtesy of CHRYSLER GROUP, LLC
Remove the spring seat (1).