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2000 Honda Civic LX. Why is temp sensor on cold side of thermostat?

sac220sac220 Member Posts: 24
edited September 2014 in Honda
having probs with the overflow tank filling up and not returning or partially returning on cool down


  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    I'd replace the radiator cap for starters.
  • sac220sac220 Member Posts: 24
    Yep did that. Is aftermarket rad. so is hard to find one to seal. Ended up being head gasket. Hydrocarbon test confirmed.....:(
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