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Old 05-31-2007, 04:27 PM   #1
ParkRat
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Default Throttle Body Cleaning

Why did I wait so long to do this... I got up early Wednesday morning and was bored so I ventured on out into the garage. I changed my oil on Tuesday and figured I would clean the throttle body.

I have 127,000 miles on my 2002 and this is the first time cleaning it. I got it all nice and shiney and started it up. Damn... I can't even tell the engine is running! What a difference.

Well worth the 30 minutes.
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Old 05-31-2007, 05:10 PM   #2
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Default Re: Throttle Body Cleaning

hmmm sounds like my next project... thanks for the idea
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Old 05-31-2007, 09:58 PM   #3
tacogrande
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Default Re: Throttle Body Cleaning

how do you do it....just take off the intake mani, open the butterfly valve thingy and clean with solvent and a rag or what?

preciate the help...iv been putting this off for a long time now.
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Old 05-31-2007, 10:24 PM   #4
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Default Re: Throttle Body Cleaning

Go Here, http://www.4x4wire.com/toyota/mainte...tenancep5.html
scroll down to Cleaning Throttle Body. Hope this helps. You owe me some Spangles .
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Old 05-31-2007, 10:56 PM   #5
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Default Re: Throttle Body Cleaning

All I did was unscrew the clamp that holds the intake to the throttle body. Moved it aside and used simple green and paper towels/qtips to clean it. You can operate the valve manually to clean it real good. I sprayed the simple green on the towels and not directly in the throttle body. I used blue shop paper towels.

No need to remove the whole intake. Just push it aside.
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Old 06-01-2007, 05:41 PM   #6
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Default Re: Throttle Body Cleaning

Thanks STOCKTRD and ParkRat

We do have Spangles resturants here lol
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Old 06-01-2007, 08:46 PM   #7
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Default Re: Throttle Body Cleaning

If you are going to clean the TB I would suggest removing it entirely from the intake manifold and using Throttle Body cleaner you can get from any parts store. While you are at it remove the Idle Air COntrol valve from the TB and give it a thorough cleaning as well.
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Old 06-01-2007, 09:15 PM   #8
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Default Re: Throttle Body Cleaning

It best to do this every 30k, keep it running its best
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Old 06-02-2007, 10:22 AM   #9
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Default Re: Throttle Body Cleaning

ok i cleaned it and just reached as far in there as i could but theres still a bunch of black gunk deep in there.

Is it hard to take the whole thing off? I have the tools but im no mechanic.

And whats the idle air control valve, whats it look like ?lol
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Old 06-02-2007, 02:38 PM   #10
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Default Re: Throttle Body Cleaning

It's not hard to take the TB off. Just keep track of the vacuum and coolant lines. Here is a screen cap of the IAC on the TB from the '03 service manual, not sure if they changed the 2RZ TB like they did on the 5VZ, but it gives you an idea where to look. It's the part with the arrows and the electrical connector to control the valve.
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File Type: jpg 2RZ-IAC.jpg (15.9 KB, 131 views)
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