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Unread 07-09-2012, 01:54 PM   #1
UNCjeepWK2
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Hemi spark plugs

I Just realized I'm supposed to change out the spark plugs as part of the 32k mile servicing per the manual. Has anyone done this yet?

What should I expect the dealer to charge for this?

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Unread 07-09-2012, 02:24 PM   #2
WKdeuce
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All I can say is with 16 of them, can't be cheap...
I plan on doing mine, but mine's got a ways to go.
Keep us posted.
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Unread 07-09-2012, 02:33 PM   #3
UNCjeepWK2
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Dealer quoted $299 for the spark plugs and installation.

That strikes me as high but I dont really have anything to compare it to... Anyone else?
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Unread 07-09-2012, 03:11 PM   #4
UNCjeepWK2
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Actually $269 with my 10% mopar coupon.
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Unread 07-09-2012, 05:44 PM   #5
pilottim
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Use coupon code A123 at Advance Auto Parts and get 16 NGK iridium plugs for $70, take an hour and a half and save yourself $200.
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Unread 07-09-2012, 06:44 PM   #6
UNCjeepWK2
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I have never changed spark plugs before... I'm not going to risk my doing something wrong and screwing something up over $200.
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Unread 07-09-2012, 06:56 PM   #7
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What if we buy them and take to the dealer,will the price be cheaper ?
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Unread 07-09-2012, 08:50 PM   #8
rcwj04
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.......I have a wj with a 4.0 straight six not a wk2 but still changing the spark plugs is not very complicated what so ever....... just unscrew it out......and put the new one in nice and tight and repeat for all the other plugs, nothing to really screw up
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Unread 07-09-2012, 09:26 PM   #9
UNCjeepWK2
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Do you have to disconnect the battery first?
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Unread 07-09-2012, 10:26 PM   #10
rcwj04
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no you dont, but I guess it can't hurt
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Unread 07-09-2012, 10:27 PM   #11
Sprintfan95
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Before I got my Jeep I owned a 2006 Charger with the Hemi. I changed the spark plugs myself and it could not have been easier. They are right on the top of the engine, just remove the coil packs and pull them out. That being said, I don't know if it is just as easy for a Jeep. I have the V6 now and don't have a hemi to look at. If it is the same plugs the reason you replace them every 30K is because they are the cheap ones. I bought a set for the charger for about 30 bucks. I would imagine they are the same plugs.
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Unread 07-10-2012, 05:38 AM   #12
77rednecktruck
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Quote:
Originally Posted by UNCjeepWK2 View Post
I have never changed spark plugs before... I'm not going to risk my doing something wrong and screwing something up over $200.
if you enough knowledge to work a screwdriver, you can change a spark plug. put a wrench on the old plug, twist it until it comes out, reverse procedure for new one. setting the gap of the plug is pretty easy with the $.50 tool at any hardware store. The only slightly challenging thing would be torque settings, but tight plus a little bit more twisting always seemed to work for me.

How can someone never change a spark plug? Have you ever had a lawn mower or weed wacker, or anything with an engine?
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Unread 07-10-2012, 06:23 AM   #13
Dave2002ti
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Quote:
Originally Posted by 77rednecktruck View Post
if you enough knowledge to work a screwdriver, you can change a spark plug. put a wrench on the old plug, twist it until it comes out, reverse procedure for new one. setting the gap of the plug is pretty easy with the $.50 tool at any hardware store. The only slightly challenging thing would be torque settings, but tight plus a little bit more twisting always seemed to work for me.

How can someone never change a spark plug? Have you ever had a lawn mower or weed wacker, or anything with an engine?
Actually you can screw up changing a spark plug. You can cross thread on installation and over torque. Back in the day I used to like to start by hand but now I use the spark plug socket on a extension to start after putting the correct antiseize on threads if required. One started I then torque o specs.
Other issues can come from not removing the spark plug boot correctly. Biggest problems I have encountered is some fool over torquing the plugs.
Dont forget the correct antiseize if required
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Unread 07-10-2012, 06:52 AM   #14
l8tapex
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Agree above.
Yes. While changing a plug is easy ( unless its like my Supercharged HD F150) make sure your use a spark plug wrench not any wrench. pick up a gap set from AZ when you get plugs. I do use never seize, just me. Always hand thread if possible softly and turn a few rounds.This allows you to square the plug and softly find the threads. Most people over tighten plugs! There is a torque set but nice a snug and solid stop should do. Not cranked on period.
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Unread 07-10-2012, 12:39 PM   #15
77rednecktruck
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Quote:
Originally Posted by Dave2002ti View Post
Actually you can screw up changing a spark plug. You can cross thread on installation and over torque. Back in the day I used to like to start by hand but now I use the spark plug socket on a extension to start after putting the correct antiseize on threads if required. One started I then torque o specs.
Other issues can come from not removing the spark plug boot correctly. Biggest problems I have encountered is some fool over torquing the plugs.
Dont forget the correct antiseize if required
spark plugs are no more prone to cross thread than any other screw. Even my 10 year old knows how to put a screw into something without jacking up the threads.

Seriously though - changing plugs, changing air filters, changing oil, air in the tires, checking other fluids, etc... is car owning 101. I think everyone should know the basics in case something happens.
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