Spark Plug Question

[dcat151]

It's time to replace the spark plugs on my J30, and I have what I think is a dumb question, but I've searched the site and haven't found an answer. Are the plugs located underneath the plastic cover on the top of the engine? If so, what size hex wrench is needed to remove the cover? (I read a post on this site saying that the I30 uses a 4mm hex wrench, but I don't know if it's the same for the J30.) I'd appreciate any help anyone can give me.

[gr8scott72]

It's time to replace the spark plugs on my J30, and I have what I think is a dumb question, but I've searched the site and haven't found an answer. Are the plugs located underneath the plastic cover on the top of the engine? If so, what size hex wrench is needed to remove the cover? (I read a post on this site saying that the I30 uses a 4mm hex wrench, but I don't know if it's the same for the J30.) I'd appreciate any help anyone can give me.

No, the plugs are under the individual coil packs which are located between the runners of the intake manifold and are held down by 2 bolts each.

[dcat151]

Shows what I know. Thanks for the quick reply: I really appreciate it. Looks like I've got a Saturday morning project all lined up now.

[yodawill2000]

Be sure to use the OEM spec plugs.

NKG PFR5G-11 Double Platinum.

Others have been known to cause issue's.

[gr8scott72]

Be sure to use the OEM spec plugs.

NKG PFR5G-11 Double Platinum.

Others have been known to cause issue's.

also be careful pulling the coils off. I have actually broken one of them. Try to pull them straight off.

[puck]

also be careful pulling the coils off. I have actually broken one of them. Try to pull them straight off.

Great, now you're give me second thoughts. I was planning to change my spark plugs out in the next week or two. The J is my only car so breaking a coil would put me in a precarious situation.

[gr8scott72]

Great, now you're give me second thoughts. I was planning to change my spark plugs out in the next week or two. The J is my only car so breaking a coil would put me in a precarious situation.

I've changed them at least twice on my 93 and once on the 94 and only broke 1.

But, without a spare......

[dcat151]

Be sure to use the OEM spec plugs.

NKG PFR5G-11 Double Platinum.

Others have been known to cause issue's.

Thanks for the tip. I'd picked up the regular platinum NKGs, but I'll go to the store and change them out for the double platinum. I'd like to avoid any issues with the J30.

[yodawill2000]

Just an FYIIf you call sparkplugs.com and tell them your from Nico you will get a nice discount. They aren't cheap by any means.

[puck]

Ya, I started looking for a spare after I read your post about breaking one.

[gr8scott72]

Ya, I started looking for a spare after I read your post about breaking one.

I'm down to only 5 spares. hehe

[dcat151]

Thanks for the help everyone. I tackled this on Saturday and the car hasn't blown up yet, so I consider that a success. It really wasn't that bad of a job except for the two plugs in the rear: those were a real pain to get to.

[gr8scott72]

Thanks for the help everyone. I tackled this on Saturday and the car hasn't blown up yet, so I consider that a success. It really wasn't that bad of a job except for the two plugs in the rear: those were a real pain to get to.

They are nothing compaired to the rear 3 on a V6 FWD vehicle. I just changed some of a friends car. It was a 1998 Lumina with the 3.1L V6. What a pain.

[yodawill2000]

I'm about to do the plugs on my wifes caravan.Gonna be a Bugger !!!

[dcat151]

Yea, I guess location-wise the J30 plugs are good, but the clearance on the two back ones made it difficult to get the plugs in and out. Still, it could have been much worse.