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01-27-2012, 05:51 PM | #1 |
Drives: 08 yaris HB blue AT Join Date: Nov 2011
Location: Louisville
Posts: 7
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Spark plug change .
So the dealer figured out that the "miss" I was feeling at idle was failing spark plug in cylinder 2. So I purchased 4 NGK iridium plugs.
Can anyone give insight on replacing them dyi. Someone said something about adjusting gap? Thanks! |
01-27-2012, 10:02 PM | #2 |
Drives: Black Vitz Liftback Join Date: Dec 2008
Location: Salt Lake City
Posts: 238
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I just did mine this summer at 60K for maintenance reasons. It is simple, just remove the nuts for the decorative cover and the plugs are right there. I believe the same size socket that loosened the cover nuts is the same as the bolt you'll loosen for the coil overs.
Everything I read said you should not gap iridium plugs-they are set and gaping could damage the coating on the tip. NGK also says you don't need to use anti-sieze as the threads are treated with a one time install coating. If the plugs are ever removed and put back in then you need the anti-sieze. You can't mess up the coil order as they only reach the plug that they pop down on. This is really simple and only took me 1/2 hour. |
01-29-2012, 01:55 PM | #3 | |
Drives: Yaris 1.33 litre 2011 Join Date: Dec 2009
Location: Wigan
Posts: 124
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Quote:
Regards Geoff Peace. |
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