Plugs in an 03 GT

jrc_03_gt · Jan 31, 2008

OK I have done plugs before, but where the heck are they? What do I have to do to get to them? I coud see them on my 2005 grand caravan. I have a 2003 GT.

myponyrocks · Jan 31, 2008

um on the top of the heads where the CoPs are bolted on... just below the fuel rails.

jrc_03_gt · Jan 31, 2008

myponyrocks said:
um on the top of the heads where the CoPs are bolted on... just below the fuel rails.

i see the pink tops I think those are the injectors I did not notice the plugs though.

myponyrocks · Jan 31, 2008

south of the injectors... I'd show you a pic, but my shaker blocks em... there are 4 circle cutouts in the valve covers on the heads....

jrc_03_gt · Jan 31, 2008

where are the wires??????????????????

04YELLOWGT · Jan 31, 2008

There are no wires.

First pull out your fuel injectors.

Then remove the fuel rails.

From there you will see 4 black "boots" on each side of the motor. These are your COPs. Pull those out to reveal your Spark plugs.

From there blow out each hole to remove any dirt or junk that may have gotten down the hole.

Then your good to remove them.

bdcardinal · Jan 31, 2008

jrc_03_gt said:
where are the wires??????????????????

no wires. there are coils on top of the plugs. the coils will have little numbers on them, including 12029. the bolts holding down the coils are 7mm. make sure you properly torque the spark plugs.

bdcardinal · Jan 31, 2008

04YELLOWGT said:
There are no wires.

First pull out your fuel injectors.

Then remove the fuel rails.

From there you will see 4 black "boots" on each side of the motor. These are your COPs. Pull those out to reveal your Spark plugs.

From there blow out each hole to remove any dirt or junk that may have gotten down the hole.

Then your good to remove them.

fuel rails stay. ive done spark plugs on mod motors a few hundred times and have NEVER pulled a rail or injector.

jrc_03_gt · Jan 31, 2008

"COPs"

bdcardinal · Jan 31, 2008

coil on plug. there is a coil directly over each spark plug.

04YELLOWGT · Jan 31, 2008

Fuel injectors your right, don't know why I was thinking that but I always pull the fuel rails because its easier to work with them out of the way.

bdcardinal · Jan 31, 2008

o, i just take the bolt off and pull. the coils come right out, and i have a 12" long swivel spark plug socket that drops right in there.

jrc_03_gt · Jan 31, 2008

Thanks for the info guys I only have 13k on the stang but some time I will change them.

04YELLOWGT · Jan 31, 2008

bdcardinal said:
o, i just take the bolt off and pull. the coils come right out, and i have a 12" long swivel spark plug socket that drops right in there.

Maybe I just like being difficult. LOL

It still only takes me about 15-20mins to change them all.

jrc_03_gt · Feb 1, 2008

Are the Bosch platinum 4's a good choice??

bdcardinal · Feb 1, 2008

jrc_03_gt said:
Are the Bosch platinum 4's a good choice??

no, get Motorcraft or Autolite. NGK if you wanna feel saucy.

the98stang · Feb 1, 2008

o gawd if you don't know where they are you better not do the job....i can see a blown spark plug(s) or stripped heads in your future

MichaelsLilGray · Feb 1, 2008

the98stang said:
o gawd if you don't know where they are you better not do the job....i can see a blown spark plug(s) or stripped heads in your future

Thats a little harsh man..

Anyways... you dont have to have the fuel rails removed... the only thing you need is a 10" extention and a deep socket...remove them easy enough.. you can always get to them just dont give up =P there is always a straight shot.. just fyi...

When putting them back in.. hand tighten... if any resistance.. turn counter clockwise till you hear it skip on the tip of the thread and try again... when you get it hand tightened, another 1/8th of a turn with the ratchet secures them without sceasing. Put the coil back over the plug.. you will NOT hear the old CLICK that you use to get with wires... when you have it on HAND TIGHTeN the coil on plug (CoP), then just like the plug, another 1/8th of a turn. DO NOT OVER TIGHTEN!!!! You tighten over 20lb of preasure.. you break the seat on the Intake Manifold.. its not fun replacing one so DONT DO IT PLEASE! Other than that your Done, Resecure the molex connector on your CoP and that cylender is done.

The passenger side of the engine is the hardest part... Air intake must be removed... and the last two you kind of have to fight the heater core return lines... Dont give up though.. break the plug loose and hand loosen..

One more thing.... Plugs arnt pregapped... I dont give a damn who tells you otherwise.. factory "oem" is .040-.042 Your GT requires .052 Please remember to do that.. it does wonders =P Good luck

GettinThere · Feb 1, 2008

jrc_03_gt said:
Thanks for the info guys I only have 13k on the stang but some time I will change them.

In the meantime, get a Haynes manual and read up on it.

the98stang said:
o gawd if you don't know where they are you better not do the job....i can see a blown spark plug(s) or stripped heads in your future

MichaelsLilGray said:
Thats a little harsh man...

Maybe it is a little harsh, but I think the98stang is right. Good info btw.

streethorse · Feb 1, 2008

04YELLOWGT said:
Maybe I just like being difficult. LOL

It still only takes me about 15-20mins to change them all.

You remove the rails, injectors, and change the plugs in 15 minutes.

Plugs in an 03 GT

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