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Engine surging after about 5 minutes of idle

Discussion in 'Civic and del Sol - EG and EK' started by dlwiii, Dec 27, 2010.

  1. dlwiii

    dlwiii New Member

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    I turn on my 93 Civic 1.5L, and it sounds fine. It's been overheating so I'm trying to get the radiator valve to open. But after about 5 minutes the smooth engine sounds becomes an intermittent sound, a surge about every 1 second. Like it's loosing power then gaining power.

    Any ideas?
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    air in the coolant lines
     
  3. dlwiii

    dlwiii New Member

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    Do you mean in the radiator coolant lines?
    Since the system just circulates water, wouldn't that resolve itself once it got and the thermostat opened?
     
  4. hondafreak513

    hondafreak513 New Member

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    no it wont since there is no way for the system to vent its self out... take the radiator cap off and let it run for a while and sqeeze the lower radiator hose at the same time... do this until the fan kicks on..
     
  5. dlwiii

    dlwiii New Member

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    Will do - thank you.
     
  6. brian11to1

    brian11to1 Senior Member

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    Clean your IACV valve, located on the back of the intake manifold.

    That "radiator valve" you're talking about is called a thermostat!
     
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