Coolant issues
The only way for coolant to get into your overflow reservoir is from having too much pressure in the radiator. It has to push the cap seal open. Try another cap.
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Go back to the original suggestion: get a pressure check done. Then you'll know if it's leaking or not, and if it is, you can begin to try to figure out where. If not, somehow you're failing to get all the air out of the system.
Replacing the radiator cap was a good step. You've checked for visible leaks and found none. Now it's time for the pressure check. Without one, you're just going to be groping around in the dark.
Replacing the radiator cap was a good step. You've checked for visible leaks and found none. Now it's time for the pressure check. Without one, you're just going to be groping around in the dark.
Pretty much any auto repair shop can do a pressure check. I think they charge like $15.00 at a place near me.
If you don't see any leaks, just beware: If it is a small blown head gasket leak you could be filling a cylinder with coolant as you do the pressure check. If that happens and you don't know it, and you start the engine when you're done, you could permanentely damage your engine. Hydralock. Only way to be sure is to take all 8 spark plugs out when you do the pressure check.
If you don't see any leaks, just beware: If it is a small blown head gasket leak you could be filling a cylinder with coolant as you do the pressure check. If that happens and you don't know it, and you start the engine when you're done, you could permanentely damage your engine. Hydralock. Only way to be sure is to take all 8 spark plugs out when you do the pressure check.
I'd put it on a lift after its up to temp, and after topping the coolant off, and with a flashlight look for leaks all around the plastic part of the radiator and hoses. You could have a hairline leak that would be friggin hard to see just be looking under the car.
As you cool the pressure rises a little in the coolant system, then it begins to drop off slowly. Maybe it just squirts out when the pressure is climbing after you walk away.
As you cool the pressure rises a little in the coolant system, then it begins to drop off slowly. Maybe it just squirts out when the pressure is climbing after you walk away.
The car hasn't ran in a week and i went out today and checked the radiator and it was about 1.5" low and i check the resiviour and the dipstick says that it should be entirely full, where is the coolant going
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See Formula413's post. The leak may only be apparent when the system is pressurized and up to temp. Also, you could have a bad seal at the cap due to a kink in the filler neck.
Either way, a pressure test should be able to expose where the exact problem is.
Either way, a pressure test should be able to expose where the exact problem is.
