2007 King Ranch 4x4, 5.4L, 205,000 miles....

Question about coil boots...Do you change them every time you change your plugs. If so, do you only use Motorcraft boots? I ask because the Motorcraft boots do not come with replacement springs as other boots do. Do you re-use the springs or buy them elsewhere if you use Motorcraft?

I have the Motorcraft plugs, but wasn't sure on the boots. Thanks for your help and opinions!

 

I used denso boots and they came with springs and a tube of grease. I would recommend them. Just make sure you order the correct ones black or brown depending on where yours is on the year cutoff.

 

absolutely not! They are not a wear item. You replace the boots and springs only, unless the coil fails.

you’re wasting money buying new coils. If one or more is bad, I would use Motorcraft.

 

- i would replace boots and springs at every plug change and/or anytime boot is contaminated with oil or coolant

- i use small file to clean tan of coil, so prefer to just put on fresh spring after doing so (and have a good snug fit

- IMO brand of boots/springs is not important, i’ve also compare regular vs “heavy duty” boots and don’t think there is a difference. as already mentioned, just make sure you get correct boot model for your application.

 

- i would replace boots and springs at every plug change and/or anytime boot is contaminated with oil or coolant

- i use small file to clean tab of coil, so prefer to just put on fresh spring after doing so (and have a good snug fit

- IMO brand of boots/springs is not important, i’ve also compare regular vs “heavy duty” boots and don’t think there is a difference. as already mentioned, just make sure you get correct boot model for your application.

 

Thanks, guys! Kind of what I figured, but better to check it out.

 

My truck is a 2006 f150 with 220k and I’m the original owner. I probably changed the plugs, boots, springs about 3 times.

all the coils are original except for one that failed. Just FYI. The truck runs great.

 

A/C Delco boots and springs are OEM match. Rockauto has them.