Plugs and coils for 05 LS
Racer
Joined: Jan 2017
Posts: 1,975
Likes: 820
From: TX
Don't try and save a buck and use aftermarket junk, you'll regret it in the end. I'm curious as to why you are going to replace the coils? Unless you have a specific failure, just do the plugs and be done with it.
Lexus Test Driver
Joined: Sep 2016
Posts: 8,578
Likes: 391
From: PA
Pole Position
Joined: Nov 2014
Posts: 3,254
Likes: 418
From: CALIFORNIA
Unless you have trouble codes then replacing COP igniters should not be necessary...
As to spark plugs, OEM supplier NGK now offers a "Ruthenium" spark plug which offers significant advantages over the stock "Iridium".
See;
https://www.clublexus.com/forums/ls-1st-and-2nd-gen-1990-2000/904773-ngk-ruthenium-hx-spark-plugs.html
As you are experiencing challenges over removing the 10mm coil pack bolt, are you comfortable with changing spark plugs and have necessary tools, such as torque wrench (torque specs necessary) ?
Last edited by YODAONE; Mar 20, 2019 at 02:56 PM.
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2GSTony
GS - 2nd Gen (1998-2005)
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Dec 12, 2014 11:46 AM