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In today's video I will show you step-by-step how to repair the spark plug connectors on a 2004 Lexus GS 300. This is a very common issue on the 2JZ-GE inline-6 engine. The connectors are located in a valley in the engine bay and the constant heat causes the plastic connector housing to become brittle and break, leading to loose connectors and possible misfires.

You will need to remove the throttle body assembly to access the spark plug connectors on a 2nd gen. Lexus GS 300. I cover that in another video:

   • How to change spark plugs on a Lexus ...  

This method should work for most electrical connectors used in Toyota/Lexus models. Remember to check wiring and take pictures before removing wires to avoid possible errors in reassembling the wiring.

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Contents:

00:00 Intro
00:29 Tools and parts required
00:38 Removing the throttle body to access connectors
01:01 How the connectors go bad
01:33 Dismantling old connector housing
02:46 Installing new connector housing
03:17 Conclusion

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Tool Required:

Sharp blade/pick

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Part required:

Spark plug connector housing (x3)
PN: 90980-11246

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Disclaimer:

Due to factors which are beyond my control, I i.e. the creator of this channel, ‘The Auto Chap’, cannot guarantee against misuse of the information I supply in this video or anywhere on my channel. No information in this video or anywhere on my channel shall imply any warranty or guarantee a result. Any loss, including but not limited to property or injury are the sole responsibility of the user and not me.

I assume NO liability for any kind of injury, including but not limited to, property damage or injury suffered due to information in this video or anywhere on my channel.

I recommend you follow all necessary and proper safety practices while working on any project. Use the information supplied this video or anywhere on my channel AT YOUR OWN RISK.

I am NOT a professional mechanic and the information in this video is NOT a substitute for information from a qualified professional automotive repairer. The information in this video or anywhere on my channel is NOT advice. If I supply any wrong information and something breaks/malfunctions, I will NOT reimburse or pay in any way for the costs associated.

Please do not work on your car if you are not comfortable doing so.