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Major idle surge issue

Tiny
JAY9913
  • MEMBER
  • 1994 HONDA ACCORD
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 168,000 MILES
My idle jumps from 700-1700 repeatedly. I have replaced the IACV and the MAP, thermo valve and the throttle body, yet I still get surging idle. I have pretty much replaced everything.
Thursday, March 18th, 2021 AT 7:42 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More then likely you have a vacuum leak. However, here is a guide that will get us started on this issue:

https://www.2carpros.com/articles/engine-surges

If you need more info on how to check for a vacuum leak, follow this guide:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Let's run through this info and we can go from there. Let me know if you have questions. Thanks
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Friday, March 19th, 2021 AT 6:40 PM

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