HCM (head Cooling Mod) for all 4.6 / 5.4 DOHC Cobra

Cobraonr

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Apr 16, 2009
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Maine
Tell me more about the dreaded tick?? I recall hearing a tick awhile ago at idle. Figured it was injectors, never thought about it before? She has 70K miles on a 98 4v.
 

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