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 on 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 on February 29, 2012
check sparks wires just took mine in because of that prob they fix it up great in a full tune up