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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

Any DIY for sparkplugs in the gs400?

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Old 09-26-06 | 08:14 AM
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Default Any DIY for sparkplugs in the gs400?
I see the DIY for the 300, and I STF, but came up with nada.

Looking to do it this weekend, if its easy. I can have a place do it for $150 in labor if it turns out to be hard on a 400.
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Old 09-26-06 | 08:27 AM
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replacing the plugs on the GS400 is so much easier than the GS300.

http://lexusmodz.netfirms.com/

scroll down to #10. I was able to change all 8 plugs in 30 minutes.
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Old 09-26-06 | 09:10 AM
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10 mm socket,long spark plug wrench, 3/8 socket.

all the tools you will need, i did a writeup last year i believe
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Old 09-26-06 | 09:13 AM
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https://www.clublexus.com/forums/sho...ight=sparkplug
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Old 09-26-06 | 10:06 AM
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Awesome guys, thanks! Can't wait to put in some new plugs this weekend!

Now where can I buy some torque master spark plugs!?
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Old 09-26-06 | 10:16 AM
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www.l-tunedparts.com - that's where i got mine from
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Old 09-26-06 | 10:27 AM
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you can buyt the NGK at autozone and get a 1 or 2 year warranty.
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Old 09-26-06 | 10:45 AM
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I normally use Iridiums in every car I've owned.

Yes, the GS400 is hella easier than the GS300/SC300/NA Supra where you have to remove the throttle body.
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Old 09-26-06 | 12:29 PM
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Originally Posted by mikevanle
I normally use Iridiums in every car I've owned.

Yes, the GS400 is hella easier than the GS300/SC300/NA Supra where you have to remove the throttle body.
Yeah, decided to use those plugs instead so I can do it tonight!
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Old 09-26-06 | 12:32 PM
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Good luck!! Take your time .
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Old 09-27-06 | 08:42 PM
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Sorry for the double post, but half way thru and stuck!

On my passenger side there is a large box blocking access to the plugs! Any help is appreciated!!!
Attached Thumbnails Any DIY for sparkplugs in the gs400?-09-26-007-medium-.jpg  
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Old 09-27-06 | 09:17 PM
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you'll have to remove the intake piping in order to remove that box.
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Old 09-28-06 | 08:02 AM
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Originally Posted by GSteg
you'll have to remove the intake piping in order to remove that box.
Thanks. Definetely not a half hour job, unless I'm just a noob. Took me more than 2 hours. Largely because of that box and additional tools were needed besides what is stated on the DIY.
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