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resevoir question Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting scotttt1970 User Dec 24, 2012, 1:32 PM Post #1 of 4 (1508 views) resevoir question Sign In   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 Hammer Time Ultimate Carjunky / Moderator Dec 24, 2012, 2:14 PM Post #2 of 4 (1489 views) Re: resevoir question Sign In 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. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. scotttt1970 User Dec 24, 2012, 6:21 PM Post #3 of 4 (1452 views) Re: resevoir question Sign In Thanks for the quick reply Hammer Time Ultimate Carjunky / Moderator Dec 24, 2012, 6:22 PM Post #4 of 4 (1448 views) Re: resevoir question Sign In You're welcome ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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