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Old 10-15-2003, 05:01 PM   #1
85258
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Default Sticky Throttle/Throttle Body Cleaning - Warrenty?

My '00 Legacy Gt was having a problem when cold where the RPM would not decrease when the clutch was engaged. It would stay the same of increase slightly for a few seconds.

The dealer diagnoised the problem as a sticking throttle plate and cleaned the throttle body. They claim that there was excessive oil from the K&N filter that was installed (previous owner) that was causing the sticking.

Anyone else have a sticky throttle body not related to K&N? I find it hard to swallow that K&N oil can be viscous enough at 10 degree C to cause my throttle to stick.
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Old 10-15-2003, 07:18 PM   #2
munkis
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the k&n probably had little to do with the sticking throttle body.

Throttle bodys do get carboned up and can stick. Some companys have telfon coated TBs to prevent this, Subaru does not.

Jay
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Old 10-15-2003, 07:50 PM   #3
Legacy777
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Quote:
Originally posted by McDade
the k&n probably had little to do with the sticking throttle body.

Throttle bodys do get carboned up and can stick. Some companys have telfon coated TBs to prevent this, Subaru does not.

Jay
The early legacy TB's had a coating. I don't know exactly what the coating consisted of, but it helped seal the TB, as well as "supposedly prevent carbon from building up"

pics and more info
http://forums.nasioc.com/forums/show...postid=2762206
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Old 10-16-2003, 04:02 AM   #4
HndaTch627
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Quote:
Originally posted by McDade
the k&n probably had little to do with the sticking throttle body.

Throttle bodys do get carboned up and can stick. Some companys have telfon coated TBs to prevent this, Subaru does not.

Jay
what he said

a can of carb cleaner and a plastic wheel brush(think of it as a giant pipe cleaner) and you can clean it yourself. Not many manufacturers use the Teflon any longer....think of it as my future career

Also on a vehicle with an EGR valve the effect is even worse.

Jeremy
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Old 10-17-2003, 01:54 AM   #5
CharT
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Just a note, make sure to use throttle body cleaner and not just carb cleaner. Some carb cleaners can damage the MAF or other electronics. Make sure the cleaner you use says it's for throttle bodies or fuel injected vehicles.
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Old 10-17-2003, 05:45 AM   #6
HndaTch627
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Quote:
Originally posted by CharT
Just a note, make sure to use throttle body cleaner and not just carb cleaner. Some carb cleaners can damage the MAF or other electronics. Make sure the cleaner you use says it's for throttle bodies or fuel injected vehicles.
no MAF on an RS...and most carb cleaners now are thorottle body cleaners they just use a different colvent now.

Jeremy
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Old 10-17-2003, 09:26 AM   #7
ImprezaVA
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Default Clean Throttle Body

I don't know if the previous owner had cleaned the throttle body on my car, but at 90K mine was remarkably clean. I still opened up the butterfly plate, I think that's what you call it, and shot some into the intake. Like I said, I didn't notice any difference after the cleaning b/c it was clean to start with.

-Charles-
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Old 10-17-2003, 09:45 AM   #8
orndog
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GM trucks had this problem from the factory. Their general rule was to clean it once under warranty, then make you pay
My Focus had this problem, so I just cleaned it myself as it has a Volant intake and I reoiled the filter once at some point and figured the dealer woul blame it.
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