i have 130,000 miles on my truck should i change the plugs it has originals in it

 

https://www.f150forum.com/f72/97-03-...-change-93389/

 

should i change them though

 

Do you have an owners manual? That tells you everything that you need to change and when you need to change it.

 

Yeah bro change em.. I just got mine changed today and my truck has 100,000 miles on it it runs so much better now

 

You shoulda changed them like 60,000 miles ago dude lol. My chilton book says to change them every 60,000 but you can go to 80,000-90,000 and be fine as long as you change them soon after. 100,000 miles is really pushin it, im surprised you havent had any misfires or anything with that many miles on the stock plugs

 

Why change them? What's it hit to run unroll miss fire? I had 123000 on mine before I got them changed

 

What's it hurt to run until miss fire*

 

When I got my truck it had 165000 on it with the original plugs, it was missfireing like crazy, went to ammco they wanted $400 to change the plugs. So I decided to do them myself. The first plug I pulled out wasnt even the one giving me problems and this is what it looked like


I think it would be best for the motor to change everything before things go bad, not after.

 

how can you tell if it's misfiring?