Changing Spark Plugs on 1995 GS 300
03-17-10, 02:55 PM
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Lexus Test Driver
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pretty much straight forward, take out whats in your way, just take out the spark plug covers with an allen, then the throttle body part.
you can search through the GS subforums, same for the 1GS and 2GS (300)
you can search through the GS subforums, same for the 1GS and 2GS (300)
03-18-10, 07:23 PM
#4
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It's not really that bad, just did it last weekend on mine.
First remove the intake piping, and the plug/cam gear cover, should be self explanatory to remove.
Then it's 6 I think 12mm nuts, and 2 12mm bolts you have to remove to slide the throttle body and the bracket that is underneath it out of the way. Make sure to unplug everything that is going to the TB, vacuum lines, throttle cables, the IAC and TPS sensor plugs.
That about it, I would suggest doing the plugs and wires at the same time and to save from frustration, do one wire/plug at a time.
One down side I guess is if you still have the coolant line hooked up to the TB, now would be a good time to either re-route or cap each end off. And the damn throttle cables pissed me off, everytime I thought I had one in, it would slip out.
This is off memory completely so if, anybody has anything else to add, please do.
First remove the intake piping, and the plug/cam gear cover, should be self explanatory to remove.
Then it's 6 I think 12mm nuts, and 2 12mm bolts you have to remove to slide the throttle body and the bracket that is underneath it out of the way. Make sure to unplug everything that is going to the TB, vacuum lines, throttle cables, the IAC and TPS sensor plugs.
That about it, I would suggest doing the plugs and wires at the same time and to save from frustration, do one wire/plug at a time.
One down side I guess is if you still have the coolant line hooked up to the TB, now would be a good time to either re-route or cap each end off. And the damn throttle cables pissed me off, everytime I thought I had one in, it would slip out.
This is off memory completely so if, anybody has anything else to add, please do.
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