How many miles is on the vehicle? The head has to come off to replace this part and the valve and valve seat also need to be serviced due to the proper alignment after replacement. The valve seal could also just need replacement of which it can be serviced without removing the head.
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2002 5.4L 4wd F-150
Tuned by Livewire PRP
4.56 gears w/TruTrac carrier
4R70 shift kit
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