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

What a difference cleaning the MAF and air filter makes...

   
Old 05-06-08, 08:41 PM
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The red circled part is the bullet looking thing. Spray the cleaner into the part that the blue arrow is pointing to.
Attached Thumbnails What a difference cleaning the MAF and air filter makes...-maf.jpg  
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Old 05-06-08, 08:50 PM
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Originally Posted by GSteg
The red circled part is the bullet looking thing. Spray the cleaner into the part that the blue arrow is pointing to.
there we go, now a dummy like me understands lol.
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Old 05-06-08, 10:19 PM
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I need to do the throttle body also. I had already cleaned the MAF and dropped in the K&N and re-assembled everything. I might do that this weeked.
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Old 05-07-08, 07:27 AM
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Originally Posted by sleeper408
I need to do the throttle body also. I had already cleaned the MAF and dropped in the K&N and re-assembled everything. I might do that this weeked.
Got any pix/instructions on how to clean the throttle body? im a noob too

thanks for your help guys
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Old 05-07-08, 07:38 AM
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The most over looked maintainence item. Good work cleaning it up I just did this on my Rav4 last week for the first time since it did wonders for the GS.. My gas mileage has indeed improved on the Rav just like the GS
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Old 05-07-08, 08:12 AM
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GSteg,

Care to draw a little more? This time for the throttle body

What a difference cleaning the MAF and air filter makes...-throttle-body.gif
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Old 05-07-08, 08:16 AM
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Nice I'll add this to the list, so is ok to use brake cleaner on the bullet looking thing right?
so spray a few times on that's all?
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Old 05-07-08, 08:29 AM
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Originally Posted by tomtsops
GSteg,

Care to draw a little more? This time for the throttle body
You might have to disassemble the throttle body itself to clean it. On my GS4, I can clean the TB without taking the unit off because I'm able to reach the throttle plate. Your throttle inlet tube looks a bit long so who knows. Try cleaning it without taking the throttle body off. Last resort, take everything out.
Attached Thumbnails What a difference cleaning the MAF and air filter makes...-throttle-body.gif  
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Old 05-07-08, 08:31 AM
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Originally Posted by RI-Lex
Nice I'll add this to the list, so is ok to use brake cleaner on the bullet looking thing right?
so spray a few times on that's all?
I dont know what's in brake cleaner, but I use MAF cleaner myself just because it was only $4 or so. The MAF is pretty sensitive and the wires inside are paper thin. They might corrode or something if you use the wrong cleaner. Again, I dont know what's in brake cleaner so I can't tell you if it'll work or not. But for $4, better be safe than sorry.
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Old 05-07-08, 08:34 AM
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Thanks GSteg, $4.00 not worth future headaches
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Old 05-07-08, 08:37 AM
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Originally Posted by GSteg
You might have to disassemble the throttle body itself to clean it. On my GS4, I can clean the TB without taking the unit off because I'm able to reach the throttle plate. Your throttle inlet tube looks a bit long so who knows. Try cleaning it without taking the throttle body off. Last resort, take everything out.
SWEET! ! ! i sure hope to be doing this this weekend. . . btw, may you please post on how to get to the tb on the GS400? ? ? sorry for being such a newbie. . . TIA! ! !
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Old 05-07-08, 07:13 PM
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Originally Posted by GSteg
You might have to disassemble the throttle body itself to clean it. On my GS4, I can clean the TB without taking the unit off because I'm able to reach the throttle plate. Your throttle inlet tube looks a bit long so who knows. Try cleaning it without taking the throttle body off. Last resort, take everything out.

Is this for a GS3 or GS4?
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Old 05-07-08, 08:03 PM
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The GS3 is the the one where the throttle tube looks a bit too long to reach into. GS4 is a breeze.
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Old 05-07-08, 10:03 PM
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I wouldn't use brake cleaner or carb cleaner. Thats just me. I would recommend using CRC electric parts cleaner. $5 or so at autozone.
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Old 05-07-08, 10:28 PM
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No one has pics of how to get to the TB on a GS400? ? ?
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