F 150 Heritage 4WD Pickup V6-4.2L VIN 2 (2004)
Valve Spring: Service and Repair
Valve Spring
Special Tool(s)
Material
Removal
1. Remove the valve cover.
2. Rotate the crankshaft until the piston for the valve being worked on is at the top of its stroke with both the (A) intake valve and the (B) exhaust
valve closed.
3. Hold the valve in the cylinder head.
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Remove the spark plug.
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Apply a minimum of 965 kPa (140 psi) of compressed air to the cylinder.
