Always find the source first, The rear water ports are directly behind the rear lower intake bolts and the front ports are directly in front of the front bolts. The rear ports are cast into the lower intake manifold and are dead ends, air can get trapped in that area. In cold weather your thermostat may open slower, resulting in a pressure build up at the rear ports. Any trapped air will compress. Normal coolant system pressure occurs when the glycol is operating temperature. I would try refilling the system and getting the air out,the leak may only occur when the system is full. With a cold engine, open the radiator cap and add 50/50 mix, fill the resevoir to the low mark. Run the engine with the radiator cap off until the thermostat opens, the upper hose will be hot when the stat opens. Turn the car off and refill the radiator to the top. Sqeeze the upper hose to remove any air. fill if necessary. replace cap, run car again until it reaches operating temp. Now with a full system check for leaks. When replacing lost coolant should also have the heat at max temp. Get a good mirror to check for leaks. The outter mating surface of the rear water jacket gasket is flush with the block and the edge of the lower manifold, sometimes you can see where it blew out.
SOURCE: My Granddaughter has a 2003 Honda Civic which has
Hi, its not good news im afraid by you describing that with the coolant cap off and revving the car causes the pressure to build up and push the water back out it sounds to me like the head gasket is on its way out, what you need to do is take it to a garage and dont have a compression test done you need to have a gasses test done, you can buy these yourself if you want to and what it does is this.
its a plastic tube with blue liquid inside it then you take the coolant cap off and place this in its place you then run the engine and rev it up then you squeeze the rubber at the end of the tube and it then sucks the air out of the coolant and through this liquid then if it detects gasses from the engine in the coolant then this turns the liquid green and this is then telling you that the head gasket needs changing.
please dont let it keep over heating as this will cause the cylinder head to warp and you would then need to get it skimmed to make sure its not warped, get the gasses test done as a compression test dont give you a true reading as the engine is not running when they do a compression test.
let me know how you get on or if you need further assistance ok
plz rate this solution as i have a whole page of unrated posts, thanks
SOURCE: 2005 chrysler town & country coolant leak
check the temp. coolant senser sometimes they will leak mine did and drove me nuts.If not there could be a main gasket leak.
SOURCE: Coolant filling up overflow bottle
You may need to ask AAA to put a radiator pressure tester on the resevoir bottle and pump it up to operating pressure(Pressure cap rating) and see if it over pressurises while it is running at operating temp,rev engine up and down and watch what the testers pressure readings do,it should move up and down in sync with the water pump.If the pressure keeps building i would have to believe that combustion chamber gases are over pressurising your cooling system.Also test the pressure cap is functioning within factory specs.
SOURCE: Have 2002 Ford Escape, Where's the Radiator Cap??
This is where you fluid goes. If I were you, I would stay away from those sealants. But yes you can put the sealant in the reserve, but it;s best if you drain half the water out, pour in coolant and then re-fill. This gives it a better chance to flow throughout the system. Sometimes these sealants can cause more harm than good in the long run.
SOURCE: 2004 VW Bug leaking antifreeze. small puddles
the VW beetle has a plastic radiator, where the cap is if you look to the front of that it does a 90, it is cracked there. Here is the fun part, with a throx wrench ( I think it was a T-30) take apart the fenders and front bumper. At the auto parts store there is a plastic tank repair kit, the kit includes resign,fiber glass cloth, and a stick. You will need to rough up the crack as it is right where it angles and lay on the cloth and resign. Let it dry and it will not leak from there again. Good Luck Tim
Testimonial: "much more knowledge than the mechanic I took it to in the first place. Sounds like something my Dad and I can try to fix ourselves. quick response! "
9,168 views
Usually answered in minutes!
×