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The car does not overheat and is fine when it is on. Once the car is shut off, sometimes (50/50) coolant will escape from the reservoir cap, it is hot, it looks clean. What could this be? We just changed the rad cap and that didnt fix it. About enough coolant to fill a shot glass or 2 spills out.

  • Welcome to Motor Vehicle Maintenance & Repair! What type of coolant do you use? If you don't know exactly, tell me what the color is. – Pᴀᴜʟsᴛᴇʀ2 Jul 22 at 17:38
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    Is the reservoir overfilled? In most cases there is an "L" line and an "H" line to indicate where the level should be between. If you have filled the tank to the top, then leaking out is expected. – jwh20 Jul 22 at 17:50
  • @Pᴀᴜʟsᴛᴇʀ2 I dont know what the last owner put in, but i have topper it up with prestone 50/50 pre-diluted (the yellow bottle). I think the color before i topped up was sort of bright yellow maybe green ish (sorry working from memory) – jim layhey Jul 22 at 17:53
  • @jwh20 The first time it happened I am not sure what level the coolant was at. But the second time, I drove the car for 45 mins and shut it off and nothing happened, then the next day, I drove it for another 45 mins and it happened again. (the coolant was right on the H line when it was cold). – jim layhey Jul 22 at 17:59
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    Generally the level should be at the "L" or "COLD" line when cold. I think your reservoir is overfilled. – jwh20 Jul 22 at 18:07

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