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scotttt1970
User
Dec 24, 2012, 1:32 PM
Post #1 of 4
(1523 views)
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resevoir question
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Hi I own a 2000 Chevy Cavalier 4 cyl 2.2 liter, and a couple of months ago I noticed it trying to overheat. So I checked for any leaks and found none, had a pressure test done on it also no problems, So I flushed the system and changed the thermostat, and noticed it ran much cooler. Well today I noticed the water level was lower than usual so I looked found that one of the clamps was loose on the reservoir, and seen a where the water was leaking a little bit. So I fixed it. My question is when it was trying to overheat I would loosen the reservoir cap and their was a lot of pressure when the car would run for awhile even when it was in no danger of overheating, and I would noticed the water would steady stream into the reservoir from the overflow hose. Now that I have changed the thermostat I have noticed their is no steady stream from the hose and even after the car has been running for a hour straight I can take the cap off and hear no pressure. Also after the thermostat was changed the upper and lower radiator hose were under extreme pressure, now their is pressure in the hoses but no where near as much as before. The car is running nice and cool. Is their supposed to be water streaming into the reservoir all the time. Sorry for the long question I just have no idea how the reservoir system works. Thanks in advance
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 24, 2012, 2:14 PM
Post #2 of 4
(1504 views)
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Re: resevoir question
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That is the main reason that you have a reservoir. Water expands and contracts with temperature so the cap lets excess pressure release to the reservoir when hot and the engine draws it back in as it cools. The pressure is maintained at a constant regulated pressure by the cap.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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scotttt1970
User
Dec 24, 2012, 6:21 PM
Post #3 of 4
(1467 views)
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Re: resevoir question
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Thanks for the quick reply
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 24, 2012, 6:22 PM
Post #4 of 4
(1463 views)
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Re: resevoir question
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You're welcome
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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