I have a 94k miles 2002 2v 5.4 F150 Lariat Super Crew. Good truck.
Noticed it was sputtering/stuttering at the 50mph shift point when it needed to downshift.
Then going home from church on sunday truck shuttered and shook the whole way home no matter what speed. CEL flashing it was definitely misfiring on multiple cylinders. Spark plugs have never been replaced so I studied online and found these things are tedious, which kind of sucks for something should be simple for routine maintenance. Decided to start on the passenger side hardest cylinder (8) and go forward.
It was dead stuck and I didn't want to break the plug so I put everything back together and called the shop for an appointment.
They called back today and they said cyl 3,4 and 6 were bad. I'm guessing they did a compression test? So now I'm waiting for those cylinders to be replaced, and spark plugs, and I told them while they're at it to replace the valve cover gaskets.
Not a happy camper :[
Noticed it was sputtering/stuttering at the 50mph shift point when it needed to downshift.
Then going home from church on sunday truck shuttered and shook the whole way home no matter what speed. CEL flashing it was definitely misfiring on multiple cylinders. Spark plugs have never been replaced so I studied online and found these things are tedious, which kind of sucks for something should be simple for routine maintenance. Decided to start on the passenger side hardest cylinder (8) and go forward.
It was dead stuck and I didn't want to break the plug so I put everything back together and called the shop for an appointment.
They called back today and they said cyl 3,4 and 6 were bad. I'm guessing they did a compression test? So now I'm waiting for those cylinders to be replaced, and spark plugs, and I told them while they're at it to replace the valve cover gaskets.
Not a happy camper :[