I hate titles
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Teching In
Joined: Aug 2015
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I hate titles So I but a 2000 z28 and need help I keep losing coolant I have seen that they replaced the radiator and the hose's so what gives am I burning it? The oil is clean so I know it's not in there
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Teching In
Joined: Aug 2015
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checked them and yes they were not in the best shape but they weren't leaking...I have heard warped heads will do this and leak into the combustion chanber. ...and it had been run hot before but no water was adied until the car had cooled
Go to your local parts store and rent a cooling system pressure tester. If you have an external leak you will see where it is once you pressurize the system. Otherwise you could also have a blown head gasket leaking coolant into the combustion chamber.
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Its a hand pump that pressurized the system just like if the car was running at operating temperature. Pump it up to 15 psi and it should hold pressure, if not you should be able to visibly see any leaks
I chased a leak for a year. I suspected that the radiator cap was not holding vacuum after turning the car off. Replaced the radiator cap with a cheap Autozone unit but the problem persisted. I replaced a bunch of hoses and was about to pull the heads when I decided to try replacing the radiator cap with an AC Delco cap from the dealer. Problem solved.
Thread Starter
Teching In
Joined: Aug 2015
Posts: 18
Likes: 0
I chased a leak for a year. I suspected that the radiator cap was not holding vacuum after turning the car off. Replaced the radiator cap with a cheap Autozone unit but the problem persisted. I replaced a bunch of hoses and was about to pull the heads when I decided to try replacing the radiator cap with an AC Delco cap from the dealer. Problem solved.
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Thread Starter
Teching In
Joined: Aug 2015
Posts: 18
Likes: 0
I chased a leak for a year. I suspected that the radiator cap was not holding vacuum after turning the car off. Replaced the radiator cap with a cheap Autozone unit but the problem persisted. I replaced a bunch of hoses and was about to pull the heads when I decided to try replacing the radiator cap with an AC Delco cap from the dealer. Problem solved.
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Water Pump Seal Hi Peter, good advice above.
My advice is to observe the Water Pump drain near the shaft center.
Look for signs of coolant coming from the small hole.
The Water Pump should be changed at 80K miles ???
The bearing too could be "felt" if the belt was removed.
A pressure tester may not test the pump seal leak if small.
Lance
My advice is to observe the Water Pump drain near the shaft center.
Look for signs of coolant coming from the small hole.
The Water Pump should be changed at 80K miles ???
The bearing too could be "felt" if the belt was removed.
A pressure tester may not test the pump seal leak if small.
Lance