So I bought a 2002 Ford F150 that has about 120k on it. It runs good but at about 60 mph and above the service engine light comes on and I am unsure of what it could be, any ideas?

 

break down and either buy a code scanner on take it to a shop because you'll be on a wild goose chase

 

take it to autozone, they do it for free, and will tell you the code.

 

Service or Check Engine ??

 

It is a service Engine light, is that the same as a check engine light? I only ask because when I turn the truck on I don't see a check engine light so I assumed that is the same thing.

 

Well I tool the car into the shop today and it looks like about 1k worth of work. I was having miss firing in number three cylinder due to a bad coil which explained my ruff idol I was having, and then I believe they said a pcv valve or something like that needed to be replaced. I had it checked at a local shop and a Ford Dealer and the results was the same?

 

Are you mechanically inclined if so it is definitley possible to due these repairs from your garage with some some what simple tools.

 

I already had the shop did the work and I should of myself but the wife wanted the shop to do it. I consider myself relatively inclined, I use to do all my work on my Mustang and did a lot of work with my Dad on his Camaro SS not to mention I am a Gas Turbine system mechanic (Jet engines that propel a ship) in the Navy.

 

Damn...and you paid a shop a grand to replace a coil and PCV valve...

 

Man you got bent over. The coil would of taken ya ten minutes. And the PVC valve about half an hour. Could of saved yourself about $800