[craven]

well after all the risks i have seen and breaking spark plugs i attempted the removal of the spark plugs and i just followed the TSB from ford....and guess what? every single plug came out with absolutely NO trouble....none whatsoever!

heres what i did...

1. i unbolted all the coilpacks, turned them back and forth gently so they wouldnt stretch or ruin.....all of them came off nicely..

2. then i loosened the spark plugs 1 at a time, 1/8th of a turn.....then i sprayed liquid wrench inside the up a very small amount around the spark plugs...

3.then after about 10 minutes i removed the fluid from around the spark plug before i attempted removal so no fluid would get inside the cylinders, and if there was some it wasnt enough to do harm...(you can removed excess with towel, or papertowel, or vacuum.)

4.gently removed them 1/4 turn at a time with steady pressure NO JERKING BACK AND FORTH! some squeaked a little but mostly no sounds at all...

5.then i celebrated and cracked a carona and a shot of JD and had some fun!!!

6.then i got back to work with a smile on my face and installed my new autolite HT1 plugs!!

7.gonna drive around and be soooo happy!!!

there you have it...very easy....follow instructions and have common sense and its a breeze....maybe take 1 hour...well worth it!!

[3valve46]

sweet man ,im doing mine at 40k,whats your mileage?

[stlwagon]

Good job! Just be aware that the HT1s are the exact same design and made by the same company as the OEM plugs.

[3valve46]

to the op,ive read champion 1's are good

[craven]

Originally Posted by 3valve46

sweet man ,im doing mine at 40k,whats your mileage?

70k...i believe they are the factory ones, so i changed them, put royal purple syncromax in the tranny, now royal purple in the power steering, and in the engine....also going to put new coilpacks and belt on too...

Originally Posted by stlwagon

Good job! Just be aware that the HT1s are the exact same design and made by the same company as the OEM plugs.

are they any better than the motorcraft plugs?....the motorcraft plugs are 4 dollars a plug cheaper than the autolites...why?

[stlwagon]

Originally Posted by craven

are they any better than the motorcraft plugs....they are 4 dollars a plug cheaper than the autolites...why?

I haven't heard of any HT1s or HT0s breaking.

[craven]

Originally Posted by stlwagon

I haven't heard of any HT1s or HT0s breaking.

thats probably why lol....well worth it then!! haha! the engine idles smoother now....after i get the royal purple in the engine....i will go back to the track to see if it runs better....

is it really hard on the clutch to launch at 2500?

[stlwagon]

Originally Posted by craven

is it really hard on the clutch to launch at 2500?

It'll certainly lower the lifespan.

[3valve46]

Originally Posted by craven

70k...i believe they are the factory ones, so i changed them, put royal purple syncromax in the tranny, now royal purple in the power steering, and in the engine....also going to put new coilpacks and belt on too...



are they any better than the motorcraft plugs?....the motorcraft plugs are 4 dollars a plug cheaper than the autolites...why?

wow 70k?dang im already worried about them.lol.glad it all went well!

[pibirdman]

I have around 33K. Is it time to change mine? What is the best plug for N/A?

[craven]

how long are the factory coil packs good for?

also what is a good site to buy and sell used mustang parts?

[goldenpony]

Man, you ought to go buy a lottery ticket!

[gabemarlin]

You might want to watch out with the royal purple oil in the engine. I ran it in my 08 and it always made valvetrain noise. Switched back to Mobile 1 and it went away. And yes, I was using the correct 5w-20.

[Mark25]

Geez, I thought these plugs were supposed to last 100K miles...isn't that what Ford advertises? I did enough plug pulling in the 60's and 70's, but I thought technology has improved since then.

[Mr. Ugly]

They are supposed to last a long time.

The problem is that if you leave them in that long, they get stuck and break when you try to remove them.

But by then you're out of warranty and you own the problem.

Best to change them out early before they get stuck.