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Idle problem after replacing the timing belt

Tiny
COLETURNER08
  • MEMBER
  • 2002 HONDA CIVIC
  • 1.7L
  • 4 CYL
  • 2WD
  • MANUAL
  • 179,234 MILES
I just changed the timing belt to my car. I rotated the belt like I was supposed to. It started up fine on the first try. The next day it started and then ran for a few minutes and then it started to run rough I hit the throttle and it would almost stall then it would pick back up and run normal again. If I let it go it will start to idle down and then idle back up again runs for a minute then drops down again and picks back up again. It started to do that last year but would only do it on the first start or if it was cold out. Could it be my idle control or did I mess something up?
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Tuesday, May 7th, 2019 AT 4:35 PM

1 Reply

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

Yes, this could be a problem with your vehicle's Idle Air Control Valve (IAC), or it could be a vacuum leak as well. Let's start by either confirming or eliminating the IAC as the problem. In the diagrams down below I have included diagrams and comprehensive testing directions for your vehicle's IAC valve. Please go through them and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Tuesday, May 7th, 2019 AT 5:17 PM

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