What spark plugs do you recommend for an 04 f150 5.4
#12
Senior Member
Thread Starter
Where I got mine, hard to beat 100% positive feedback:
Set of 8 Motorcraft SP515 Spark Plugs PZH14F Free Shipping
Set of 8 Motorcraft SP515 Spark Plugs PZH14F Free Shipping
Thanks! I just bought mine today and I had 15 dollars off, it came out to 63.98
#14
Senior Member
Thread Starter
So today I went to change my plugs and I found that the @#$hole previous owner decided that it was ok to change 3 of the 8 plugs and leave the hardest to reach plugs untouched since the factory.
#16
LightningRod
^^^^ X2 --- I second everything everyone has said. Some additional thoughts -
https://www.f150forum.com/f4/5-4l-3v...6/#post3930018
https://www.f150forum.com/f4/5-4l-3v...6/#post3930018