lbajo1

Okay so i changed my plugs at 45k and 75 k never broke a plug. Its time to change them again.

I have read and read thru threads and every one seems to like a different plug.

What plug is the best plug recommended? i would like to use a one piece if possible.

I heard Champion makes a one piece should i get those? or go with motor-craft.

Part number would help thank!!!

lbajo1

I also want to use seafoam. But i don't know hoe the procedure goes? and how to use it. I know you pore it down the master cylinder vacuum line but not how much and how often etc.

Can some one please explain it to me thanks

'05 F-150

here is what i do, one bottle thru the vacuum line and one bottle in a FULL tank of fuel and get a bottle of spray seafoam and clean your thottle body very good to, the trick is have a hot engine and you suck it thru the vacuum line, take it out and run the hell out of it, you want to clean your thottle body first and then run it again to keep it hot and then dump the full bottle in the FULL tank of gas (i recommend 93) and last suck a bottle thru the vacuum line should smoke like hell, after that do a half bottle thru the vacuum line and the other half in the tank every time you service your truck good luck

'05 F-150

i would stick to Motorcraft plugs

muddymallard

I put NGKs in mine not to long ago. They seem to be doin good. I have also been told the E3 plugs are good and give you the best burn of any plugs on the market.

Mr.Bones

Negitave on the E3, I melted one off the the head of my 4.6. The others went out after about 20,000 or so. I stick to Motorcraft they work the best.

amick218

I just replaced mine, OEM Motorcraft is the way to go imo.

razzle

I had my plugs changed and then I started to get a knock/ping when going up hill. starting to wonder if its the plugs the shop used making it ping.