megan4221977
Member
Hey… ok #7 misfire… I bought truck 201k on it, ran smooth no noises, was told it was maintained… well noticed when driving on interstate, when stomping on gas to get up and go it would buck and engine light would flash… changed filter and fluid in transmission, seemed ok… did it again, happened to have computer tester and plugged in while driving and read random misfire, so changed all the spark plugs… #7 misfire, so changed all the coils packs, #7 misfire, changed fuel injectors… you got it #7 misfire still!!! Just took off the valve cover as was told could be rocker follower, they seem good very tiny to no wiggle at all!! Even checked spark at #7 and was good… know I’m stumped!! Not losing any fluid. (Coolant or oil) only this code shows, clear it runs great till you have to give a little gas to maintain speed up hill or something… then struggles, jerks, sputters, etc… check engine light flashes… clear code while driving (3xs in a row) and drives fine again. Also the spark plugs looked original!! Replaced with OEM… even did the dioeletric grease stuff on coils… any ideas/help… no engine noise, runs quiet since I got it.