Question about 1999 Buick Century

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I HAVE REPLACED THE THERMOSTAT, THE RADIATOR, AND THE WATER PUMP. THE CAR IS STILL GETTING HOT AND I DO NOT UNDERSTAND WHY.

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  • 343 Answers

Air trapped in the block or head gasket leak, proper radiator filling techniques/procedures for the air, check plugs and do compression check for head gasket damage

Posted on Oct 04, 2010

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Posted on Jan 02, 2017

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SOURCE: HOW DO YOU PURGE OR RELEASE AIR ONCE YOU REPLACE RADIATOR, WATER PUMP AND THERMOSTAT?

Let the engine cooldown,then open the bleed screw on on the thermostat house,do not remove just loosen----fill water in the radiator bottle slowly and watch for water coming out of the bleed screw----
sometimes the bleed screw is blocked due to anti-freeze-then take the screw off completely ,clean and replace----always make sure the engine is cool

Posted on Jun 15, 2009

  • 2 Answers

SOURCE: car overheats. have replaced radiator,thermostat.water

Question that I pose is:
Is the car overheating or are you assuming it is as the gauge is telling you that it is?
There are two cheap and simple things that are not mentioned in this post. There is an Engine coolant temp sensor which in all of their innane wisdom Saturn built with a plastic tip and we all know plastic melts fairly easily. This part is a simple fix as it needs a 13mm deep socket and that is it for tools to replace it and it is $10 - $15 for a new on with a copper tip. There is also an Engine coolant temp switch which sends information to the PCM to tell the gauge what the reading should be. Aslo $10 - $15 and a 13MM deep socket to replace. These are common issues with the S Series Saturns. I do however recomend that if you are going to replace them yourself that you empty the radiator of coolant as the sensor and switch are directly in the engine block coolant flow and will give you a nice little shower if you do not at least jack the drivers side up before replacing them.

Posted on Dec 02, 2008

  • 1 Answer

SOURCE: car runs hot

CHECK YOUR RELAY IN YOUR FUSE BOX UNDER THE HOOD ON THE DRIVERS SIDE INNER FENDER. THE A/C AND THE HEATER RELAY ARE SAME. CHECK AND SEE IF THE A/C REALY WORKS BY TURNING ON YOUR A/C SWITCH. THE ELECTRIC FAN SHOULD START RIGHT AWAY. OTHERWISE YOU HAVE TO WAIT TILL THE ENGINE ACHEIVES OPERATING TEMP TO KICK THE FAN ON. IF ONE DON'T WORK AND OTHER OTHER DOES... SWITCH THE RELAY AND SEE IF IT WORKS. BEEN THERE AND DONE THAT. $9.00 FOR A NEW RELAY AT CHECKER AUTO PARTS.

Posted on Feb 14, 2009

alicantecoli
  • 22246 Answers

SOURCE: my vw polo keeps overheating after 1 mile or 2 the

sounds like the plastic impeller has broke on the water pump.

Posted on May 17, 2009

  • 41 Answers

SOURCE: 1988 BMW 735I RUNING HOT REPLACE THE RADIATOR,

Headgasket must be checked. and check that you have enough radiator fluid. Also check for warped/cracked cylinder head.

Posted on Nov 07, 2009

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Icant understand some of what your asking the part I do understand is it seems your loseing water and you want to no where it is going if you dont have a leak if you ran your car hot you could of cracked the head on car it could be mixing in oil Icant understand if your saying you replaced your water pump or you need a new water pump well if you didnt replace water pump and its bad the purpose of the water pump is to push water thru engine and radiator so vehicle engine will stay cool theres ways you can test a water pump is when vehicle is cool open radiator cap let engine warm up until thermostat opens it may take a few minutes if water is not circulating it could be water pump i would also look at thermostat befor changeing water pump if thermostat is bad it will also cause issues its normal to loose some water out of radiator over flow but its not common to be adding it alot due to evaporation you will loose a little water

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