how do you change the sparkplugs on 1990 Mercury Cougar

when driving it acts like its missfiring

by in Lockport, IL on September 15, 2010
2 answers
ANSWER by , September 15, 2010
very tight on the supercharged motor. it pays 2 hours in a shop. plan on double or riple time if you have no expierence. Roy
ANSWER by , February 29, 2012
check sparks wires just took mine in because of that prob they fix it up great in a full tune up