4 cyl mercury-smooth idle-huge missing (on off) 2000 rpm up

Sep 23, 2007 0 Replies

new fuel filter-30psi @fuel rail-vacu leak check with bubbles/propane- ok-pulled plug 1 at time and smooth idle went to miss with each one pulled-Throttle or crank sensor? Bad valve spring? (On way to rent code puller)



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