I have hooker super comp headers on my 02 ss. I changed 7 of my plugs from platinum to iridium plugs. No matter what I do, I can't get to the last one on the passenger side!!!! Looks like i'll have to take the header off the pass side!!!
It misfires aboove 4500 rpm. I'm assuming it's because I have 7 iridiums and 1 platinum? Any secrets to taking off these headers? Damn!!!

 

No need to take the header off. To make it easier to get, take off the coil packs and you'll have plenty of room.

 

Like sickss said, you should take off the coil pack brackets off and that should do it. I usually go from underneath to connect the plug wire on #8.

 

have to jack it up and get to it from the bottom.

 

From the bottom it's easy to get to with everything all attached. From the top with the coil packs off is pretty easy too. I don't think that running the car with one plug differnet is a very good idea, get that last plug changed!

 

+1 for doing it from under the car, I have pacesetters which are prob a lil diff from yours but cant be that much , from under the car #8 is one of the easiest to get to.

 

Ok, thanks to you guys, I have finished the plugs. Now, of couse, there's a problem. It's backfiring and misfiring, not too bad but noticable in the higher rpms. I'm thinking I may have messed the new ones up when I tried to run the car with 7 iridium and 1 platinum, although I only drove it like that a mile or so. I doublechecked the boots on all the plugs prior to starting it. What ya think?

 

Recheck the plug wires. If you get an SES light scan it to see if it will tell you which cylinder is misfiring.

 

Never mind this thread-1camwndr, your sig is awesome!

 

Get a scanner, find out which cyl is doing it, bet that a plug wire isn't on right.

 

Or maybe you cracked a plug while installing the other ones.

 

Those wires can be a royal pain to get seated correctly. Listen for two clicks on the coil side.

 

Thank you .
I second the checking the plugs for a cracked one. I have done that twice so far . I was lucky enough to realize it when it happened though.

Don't you just love tracking down the little aggravations .

 

I have hooker supercomps also and Im having alot of touble getting to it.

 

I dont know why you guys are having a problem dont let it kick your *** take off the coil packs and you'll have plenty of room. I used to check my plugs up to 3 times a day when i was spraying and never had a problem. I also never had to get under my car to connect or disconnet anything, because it was simple enough to get from the top. Oh and when you take that back stud out from the rear just leave it out, it makes the next plug check/change a whole lot easier.

 

YES! YES!! YES!!! Please follow this advice.

 

I have seen some aftermarket plug wires come apart on the inside from pulling them off of the plugs as well. Use an Ohm meter on the wires to make sure they are all ok.

 

yeah i just installed headers on a friends car and he pulled one of the plugs metal thing right out of the wire, but luckly my russ knew how to fix the wire. i just grab as close as i can to the plug and pull i never pull on the wire part.

 

Arwe you sure you have them gapped properly?

 

I have the NGK Iridium TR55lV. These aren't supposed to be gapped different from the preset. They're right at .057. I have Stage 2 Patriot heads, will these heads require a different plug gap?