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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Question on Throttle Body Part

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Old Sep 22, 2009 | 06:07 AM
  #1  
crafthorse's Avatar
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From: Pineland S.C./ Scott Depot W.V.
Question on Throttle Body Part

Hey guys I had to adjust my idle due to "Surgeing when brake applied", and I got it taken care of. I do hwever have a question. I noticed on the throttle linkage that there is a small canister with what appears to be a small plunger with spring that the linkage pushes in when the gas is let off, and lets the plunger extend when giving it gas. Sorry if that description is bad, just wondering what it is, or what purpose it is serving.
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Old Sep 22, 2009 | 07:18 AM
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From: CenCal
If I understand you correctly, that's the "dashpot." When you release the throttle quickly, it keeps the butterfly valve inside the throttle body from slamming shut and causing backfire.
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Old Sep 22, 2009 | 09:08 AM
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From: Texas
Originally Posted by qdude79
If I understand you correctly, that's the "dashpot." When you release the throttle quickly, it keeps the butterfly valve inside the throttle body from slamming shut and causing backfire.
Hit the nail on the head.
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Old Sep 23, 2009 | 05:20 AM
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From: Pineland S.C./ Scott Depot W.V.
Ahh ok, I didnt know that. Thank you for the info. Glad I learned something today.
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