Vacuum leak that goes away when engine is warm...
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From: Orange County, CA, US
Vacuum leak that goes away when engine is warm...
When I start up the engine, it revs up a bit over 3k RPM, bounces up and down from 1,500-3,000 RPM and slowly goes away when engine is fully warm. Can anyone help? TIA
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From: RedZone, Ca, San Jose Ca
Re: Vacuum leak that goes away when engine is warm... (Rtype16)
what engine do you have? some engines have the throttle body that has a valve underneath it. it has a cover with to small bolts holding it on. take the cover off and you will see a brass nipple with a plastic ring. if the plastic ring has unscrewed itself then just screw it back in and put the plate back on and it will take care of your problem.
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Re: Vacuum leak that goes away when engine is warm... (GapxGuy)
I'm running a B20vtec with a GSR TB. Funny you mentioned the TB lower half, b/c I opened that piece trying to fix the vacuum leak. I opened it up and cleaned everything inside with carb cleaner. I found the vacuum leak, but may have make another one in atempt to fix the first one. 
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DeCoY
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