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

Valve cover gasket and plugs

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Old 08-15-14, 09:54 AM
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Marklopez
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Default Valve cover gasket and plugs

Alright so I'm doing my valve cover gaskets on Tuesday. Both my intake and exuast. While I'm at it I'm going to go ahead and do my sparkplugs. I've had this car for about a month now. (Best car ever made) this is my first time working on a car so Id like a list of the tools I'm going to need. Since I don't have any I need to purchase them. Any tips from someone who's already done this would help. Thanks in advance. 2003 145,XXX
Old 08-15-14, 06:28 PM
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ttaylor993
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You'll have to take the intake tubing and throttle body off. If memory serves me correctly you shouldn't need much more than a 10mm and 12mm socket. I used deep sockets. I'd have screw drivers handy as well. You'll also need socket extensions for the screws beneath the throttle body.

My valve covers were leaking badly when I changed them a few months ago. My plug valley was filled with oil and debris from a crumbling wiring harness. I used a small shop vac with a computer cleaning nozzle on it to vacuum up the mess. Whatever you use, be sure to clean up before you remove the plugs or you'll get oil and trash in your cylinders.

Good luck.
Old 08-15-14, 08:25 PM
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Marklopez
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Originally Posted by ttaylor993
You'll have to take the intake tubing and throttle body off. If memory serves me correctly you shouldn't need much more than a 10mm and 12mm socket. I used deep sockets. I'd have screw drivers handy as well. You'll also need socket extensions for the screws beneath the throttle body.

My valve covers were leaking badly when I changed them a few months ago. My plug valley was filled with oil and debris from a crumbling wiring harness. I used a small shop vac with a computer cleaning nozzle on it to vacuum up the mess. Whatever you use, be sure to clean up before you remove the plugs or you'll get oil and trash in your cylinders.

Good luck.
After watching the diy video I'm pretty sure I have it. I just needed to know what tools I needed. Thanks I appreciate the response.
Old 08-15-14, 08:27 PM
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Marklopez
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Mine aren't leaking as bad but I'm changing them before it gets any worse.
Old 08-15-14, 08:42 PM
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Marklopez
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Mine aren't leaking as bad but I'm changing them before it gets any worse.
Old 08-15-14, 09:41 PM
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raytseng
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you're also going to need the 6pack of beer

when you start at the very first bolt and it seems completely frozen up; or the air tube doesn't come off at all despite you taking off the metal band.

Suggest you at least find a buddy who's into car repair to help you out if at least for moral support.

All the random stuff you gather as a shadetree mechanic like penetrating fluid, pliers/wedges/mallets/hammers/socket extensions, pickup tools will all come in handy.
Old 08-17-14, 02:12 AM
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Lukas99GS
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I couldn't wiggle out the passenger side valve cover, the plastic harness with all the wires in it was in the way and I couldn't figure out how to move it? I could be missing something obvious here..
Old 08-17-14, 10:50 PM
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Marklopez
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Originally Posted by Lukas99GS
I couldn't wiggle out the passenger side valve cover, the plastic harness with all the wires in it was in the way and I couldn't figure out how to move it? I could be missing something obvious here..
There is a screw to remove the wire harness I belive
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