08 F150 bucking under load...plugs?
#12
Senior Member
You can rent the lisle tool from parts stores. I rented one from Autozone around here. Didn't need to use it, but you just leave a deposit, and when you return it, you get your money back.
On another note, I used this setup right here to do mine, on a hot engine, with not one snapping off. It gets on all 8 of the plugs.
On another note, I used this setup right here to do mine, on a hot engine, with not one snapping off. It gets on all 8 of the plugs.
#14
05 5.4l 3v s.crew lariat
Read the ford TSB on plug change out
Some carb cleaner in there and just break loose 1/8 turn and let her soak . It will try and melt carbon if it can get past the threads . Half oz per cyl should help . after she soaks for a while I would try another 1/8 and so on .
#15
05 5.4l 3v s.crew lariat
It will cure your misfire
But your mileage for jacked up 35's is still going to kill your mi/gal when pulling trailer imho .
When I had my 454 corvette the man told me if I was concerned about mi /gal Then I couldn't afford the car . I got the message .
When I had my 454 corvette the man told me if I was concerned about mi /gal Then I couldn't afford the car . I got the message .
#16
Member
Thread Starter
Oh, I knew my mileage would suck after I did the lift and tires last month but it has been around 11.5 mpg which is pretty normal for this truck. I have never seen it go down to 8 before. Plus the way the truck was bucking I had to assume there was an issue. It was doing this before the lift and tires were put on last month so I knew something was going on.
#17
Mark
iTrader: (1)
#18
Member
Thread Starter
Just so I would know...I called the ford service dept to get a price on plug change out from them and it looks like around $900!! I can literally buy all the tools and parts, including new COPs, for 1/2 that amount!
#19
Moderator
Yep, dealers are not fans of doing a plug changes on the 5.4's my dealers standard is $400 plus $50 per broken plug.
#20
Mark
iTrader: (1)
with only 76K miles on your motor ..you do not need new COP's... just plugs/boots and springs.