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Old 09-27-2006, 01:15 PM   #1 (permalink)
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The cost to change the 6 plugs is rediculous ($570 at the dealer) Engine is running fine. Any thing wrong with letting the plugs go for a while? Are NGK the only plugs to use because the dealer also noted that Champions were also listed in the manual?

Any tips on putting in the rear 3 plugs even though the plenum needs to be pulled.

Thanks in advance
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Old 09-27-2006, 05:16 PM   #2 (permalink)
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Dear zul8tr,

Since you have the V-6, the reason the dealer wants $570 to replace six plugs is he has to drain the radiator, pull the intake manifold(!) with plenum and throttle body, replace the plugs, reinstall the intake with new gaskets, refill the radiator cooling system. You cannot reaqch the 3 inner plugs with any 'special tool'. You must pull the intake manifold.

So much for smart design engineers.

The plugs are supposed to last 100,000 miles. Are you over this mileage? If not, the plugs might be replaceable as a waranty coverage. You normally would need a check engine light to come on to get the dealer to do this under warranty.

Why not replace the rear three plugs with identical new plugs, and add a good grade fuel injector cleaner like BG 44K?

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Old 09-28-2006, 07:14 PM   #3 (permalink)
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Wow Wow....The reason it is costly, Time and parts. Sparkplugs: $20.00 ea, plenum gasket and at the same time since the plenum is removed, they replace the plugs wire. No the radiator does not need to be drain.....what for?????? I did it myself and it was a no brainer. By the way, theycan last up to 100,000 Km and not 100,000 miles. when I replaced the forward ones, they were in a pretty good shape, the rear ones, were worned out. They propbably run hotter then the forward ones.

In conclusion, have them replaced to prevent future problems....
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Old 10-09-2006, 04:52 PM   #4 (permalink)
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Actually have 61000 miles on car. The owners manual recommends to change plugs at 60000 miles but i think if engine running good that they are conservative in their recommendation.

Is NGK the only way to go on plug brand even though the dealer is pushing Champions?

Thanks
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Old 10-09-2006, 06:20 PM   #5 (permalink)
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pretty sure the factory ones are NGKs, I'd stick with them
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Old 10-09-2006, 06:24 PM   #6 (permalink)
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You are right. Stick with NGK. Change them, even if your engine runs well. Mine was also running well. When I replaced the rear ones, they were worned out compare to the front plugs. Change the wires at the same time since the plenum is removed.
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Old 10-31-2006, 05:21 PM   #7 (permalink)
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Most of the 2.7Ls came with Champions from the factory. Some with NGKs. Definately replace with NGKs though, it's a much better plug. The NGKs list at $14.04/ea, and the plenum gasket at $15.20. I can do $10.50/ea on the plugs, and $12 on the plenum gasket plus a few bucks for shipping. I have seen wires go well beyond 100k miles before needing replacement, so replacing those is up to you.
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Old 11-04-2006, 02:39 AM   #8 (permalink)
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I would probably agree but very slightly but if your in a cold climate and warm your car up in the winter just to make sure it starts in the afternoon, i would say replace them your in there already, and you dont need to be stuck on the side of the road from some wires. Oh yea my luck usually consists of removed the wires to get to the plugs and then the boot falls apart onto the plug or is in bad condition. I let mine go the first plug change but 30,000 miles later they werent so hot, halfway through a nice cold Alaskan winter.

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Old 11-06-2006, 08:48 PM   #9 (permalink)
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I recognize that building, but just can't place it ...
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Old 11-07-2006, 03:32 PM   #10 (permalink)
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I figured you would, its the wildlife building and meusam here on ELMO), i love the ice cicles that touch the ground, makes it look so cosy inside
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