Question about 1997 Chevrolet Lumina

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Squeeling water pump, with coolant around the pump

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If the belt is squeeling due to coolant on the belt, the only thing you can do is to replace the pump. Especially if it is coming from behind the pulley. Very easy and inexpensive to do. Let me know if you need diagrams and instructions.

Posted on May 07, 2010

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Most likely you have a bad water pump. When the water pump fails it leaks coolant through small holes on the top and bottom.
Before you condemn your water pump clean the area and make sure the leak is not coming from another area.

Posted on May 07, 2010

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I have a 98 expedition and it is using alot of

i myself had this problem it cud be your thermostat malfunctioning a clogged heater core or a leak in the cooling system or even worse a bad head gasket . does your overflow tank blow out coolant? check your oil look for water if no check your coolant over flow tank does it smell like exhaust? if oil is good and overflow tank smells fine you have eliminated bad head gasket few then you check thermostat make sure its not sticking open or closed .check heater core if you have heat thats good . so best case sinario its the water pump atleast was the case with mine in summer ran water in it but water evaporates quickly as expected but as winter approached i added antifreeze right then and there the water pump started to squeel and leak antifreeze out the weep hole located on the top of water pump i replaced water pump and have not had a problem since hope this helps good luck

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Was squeeling at waterpump.replaced with new pump.squeal went away.after it idled abot 20 minutes,it started to chip,then squeal it possible trhe new bering in water pump,was not lubed?,,and went...

Hi,The water pump is assembled with a sealed bearing (lubed from the manufacturer)
Usually you can feel play in the bearing when its worn.
The seal of the water pump will squeal if it runs without water (it needs the coolant to lubricate it )
So is it possible there`s an air lock in the pump area of the coolant system
Other than that the noise could be coming from something else that the same belt drives
John (South Wales uk)

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2005 grand cherokee squealing and loss of coolant

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Is there a cooling fan fuse?

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Car over heating

There could be a number of things causing your vehicle to overheat, you'll need to do some trouble shooting to find out what the problem is, here's a list of things that might help,
  • Check the thermostat, if it's defective replace it.
  • Check the coolant in the reservoir tank, it should be at the proper full level.
  • Sometimes when you change a thermostat there's a possibility you could get air in your coolant lines from having the coolant system opened up, this could keep your coolant from circulating through your system, if so you would need to bleed the air out of the coolant system.
  • The water pump should be inspected for leaking coolant out of the weep hole's, when a water pump go'es bad it may leak coolant, which would mean the seals on the pump are bad, also listen for squeeling noise's coming from the pump when the car is started, if it squeels the bearings are bad, there is also a possibility the water pump fins are wore down from corrosion, there is no way to inspect this without removing the pump.
  • check the drive belt for wear and tension, a bad tensioner or a bad drivebelt could have an effect on the operation of the water pump.
  • check the pressure cap on the coolant reservoir tank for good pressure, when you remove the cap you should hear a hissing sound this means you have good pressure in your cooling system, check for corrosion or build up on the cap, clean the cap if nessary, also check the coolant in the reservoir tank, it should be clean, if not you might need to have the cooling system flushed.
  • check the large upper and lower radiator hose's for cracks, swelling, and proper coolant flow.
  • Check the operation of the cooling Fan, and circuit, cooling fans use relays and fuses, some vehicles use more than one cooling fan, if your vehicle has two cooling fans there should be two relays and two fuses one for each fan, first visually inspect the fuses if one or both are bad replace them, when a relay is activated it sends voltage to your cooling fan, you can test the relay or relays for continuity by removing them and doing a proper continuity test according to your relays circuit diagram.
  • Check the coolant temperature sensor, most coolant temperature sensors are located directly in the thermostat housing, this sends information to your ecm which determines when to turn your cooling fan on and off, if it's defective replace it.
  • Inspect the radiator grill for any debris build up or damage.

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1 Answer

Car tempature goes up only on hills.

I think your cooling system has air in it, Try and find a place around the thermosat that can be opened a small valve it may just look like a nut, with your car running and radiator cap off, turn the heater on and fill with coolant till it runs out the valve with out air, then top off the radiator to full. also top of the coolant overflow tank. I think this may solve your problem. Merry Christmas!

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