Question about 2003 Pontiac Grand Am

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2003 pontiac grand am looses all water out of overflow reservior and over heats

I just had the heater core and head gasket replaced and the water pump and thermostat. The radiator was also flushed but about every 3 days the water and coolant just pours out of the overflow resrvior and the the car over heats in a minute. I'm a woman and at this point I don't know what to do or who to trust to fix this overheating once and for all

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Sounds to me like maybe a fan is not operating properly. This could be the original problem that caused the bad head gasket to begin with. Have you heard the fan come on during the overheating?

Posted on Jan 17, 2018

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  • Pontiac Master
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Blown head gaskets can cause this also . Check the oil dipstick and oil filler cap for milky white color .

Posted on Jan 17, 2018

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It appears you have an air lock in the cooling system.If you don't know how to clear it take it back to whoever did the coolant flush

Posted on Jan 17, 2018

  • Everald Collymore
    Everald Collymore Jan 17, 2018

    change the Thermostat Sensor on Engine Block

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Posted on Jan 02, 2017

Anonymous

  • 1118 Answers

SOURCE: 2006 pontiac grand prix vary little or no heat

Are you sure you got all the air out of the cooling system? Air pockets are very common problem when you do any work to the cooling system. An air pocket will do what you discribe.

Posted on Mar 18, 2009

salsaurbana

Luis Rondon

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SOURCE: 1999 Pontiac Grand Am Overheating

It is probably the problem. To make shure that need to change the gaskets, one of the symptoms use to be thet the temp rises when you are running at speed 50+ average, where is supposed that the car gets a lot of air due by the speed and nobody thinks that will be overheated.

Posted on Nov 19, 2008

Anonymous

  • 35 Answers

SOURCE: '94 grand am cooling system failure

What engine do you have? One noted problem with the 4 cylinder engines is the reliability that at some point the intake will crack. I went through all the same things when I bought my 93. Drove off the lot, started overheating, replaced the thermostat and still had the problem without moving from the driveway. Look all around the intake. Make sure car is full of coolant and have the engine running. Most likely you will see a small coolant leak on the backside by the firewall. These cars were known for this problem. By the way if this is the problem make sure you take it to a reputable mechanic, make sure you get a new one installed. I had a used one and had the car back in the shop the next day. It then sat there for 2 more weeks while the used car dealer and I had a "discussion".

Posted on Jan 07, 2009

jimcierson

  • 2 Answers

SOURCE: 99 GrandAm still overheating after replacing comon problem parts.

check the two small hose coming from the overflow tank my got blocked this worked for me.

Posted on Nov 13, 2009

daves944

Dave C

  • 1050 Answers

SOURCE: My '99 Pontiac Grand Am

I would replace the rad, you've done everything else.

Posted on Jun 02, 2011

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2 Answers

2005 Pontiac grand am overheating replaced intake gasket checked hoses replaced thermostat what else could it be


Could be a blocked heater core. Could be a head gasket or a warped head or block if it got to hot at one time.

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air bubbles means head gasket.
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1st check the condition of the oil by checking the dipstick. If the oil looks milky then it's a head gasket issue. If oil is ok, refill coolant, start vehicle and let it run for 5 to 10 min. If you notice alot of white steam coming from exhaust then it's a head gasket. After vehicle reaches normal operating temperture, shut vehicle off. Now you're gonna have to check each individual spark plug. If you find one that's wet from coolant then you're gonna have to replace head gasket.

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1999 Grand am GT keeps trying to overheat the heater blows cold and then it"ll kick heat on cooling the car down i've had intake gasket thermostate water pump replaced and the radiater flushed twice alond...


sounds like your either low on coolant or a possible blown head gasket, the head gasket will create too much pressure in the cooling system and blow your coolant out of the overflow and fill the heater core with air causing the heater to be cold or your just low on coolant due to a leak or improperly filled cooling system. so fill the cooling system resovoir while vehicle is running while keeping the level at "full hot" line until the fans have come on and gone back off (a/c and defrost must be off) then drive on the interstate until the heater gets hot. if the vehicle tries to push the coolant out while filling the system headgasket is a definite possibilty. BE CAREFUL COOLANT GETS HOT!!!

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Overheating


possible air pocket, look for bleeder , when bleeding open heater core ,turn on heater , is water pump ok , heads and head gasket ,

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Pontiac grand am 1994 water comes out overflow


First question: why was the heater core replaced. Was it leaking water inside the car? Or was it replaced due to no heat inside the car. If it was replaced due to no heat inside the car, the shop you had taken it to shouldn't have replaced the heater core until they conducted tests of why there was no heat even if the customer insists on replacing the heater core. The reason why I'm asking is there's a possibility of the head gasket was leaking causing the poor circulation of the water to the heater core. If so, you may have replaced the heater core for no reason and most likely cost you a bunch of money. I live by this rule in our shop: DON'T JUST THROW PARTS AT THE CAR! You 'll end up spending way more money than you needed to.

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1996 Pontiac Grand Am / Overheating


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