Question about 1999 Pontiac Grand Am GT

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Overheating I recently go my waterpump replaced and now the car overheats and burps anti-freeze whenever the car is run long enought to heat up and overheat... i heard someone mention the posability of the system needing to be burped.... does this sound familiar?

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

Posted on Jul 15, 2009

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Will an air pocket in the coolant system cause it to overheat or over pressurize on a 2001 Nissan Sentra ?


1. The radiator cap if working correctly it will release pressure in the system provided the cap you have is the correct pressure setting. If you are having a problem with pressure then replace the cap with a new radiator cap with the correct pressure setting. Do not use a cap with a pressure setting other than the original equipment pressure spec. So you do not go to the parts store and buy any radiator cap on the shelf that fits because they come with different pressure ratings and some of these will be totally unsuitable for your car.

2. If the pressure valve is stuck in the "old" cap the pressure release system will not work.

3. Overheating
Air pockets in the cooling system can definitely cause overheating and can retard coolant flow through the system. If you are draining the radiator to replace the coolant or replacing the radiator you need to follow the correct procedures for bleeding air out of the system for that particular engine after coolant refilling. Some engines have bleeder screws on the cooling system to assist in the air bleeding procedure and some don't.

There are various causes for overheating so don't assume it will necessarily be solved by bleeding any remaining air from the cooling system and replacing the radiator cap with one that works.

Other causes can be...........
1. Faulty cooling system thermostat. (Replace the Thermostat)
2. Faulty water pump, especially if the impellers have corroded away or have disintegrated in the case of those design genius water pumps with plastic impellers. (Replace the water pump)

3. Cooling fans not working and if so the cause needs to be tracked. Check that your fans are kicking in. If the engine is overheating the fans should be running because they will switch on when the coolant reaches a specific temp and well before the coolant gets excessively hot.

4. A partial blockage in the coolant passages inside the engine but not in the radiator if you have a new one. If the coolant is not changed at the required intervals(frequently the case with many owners) or is over diluted with water you can get a build up of debris. If products like stop leak have been used in the system this can create similar problems with partial blockages inside the engine coolant passages.

5. A compression leak into the cooling system.
If you have bled air from the system and have continuous air bubbles in the cooling system I would suspect a compression leak. In that event a basic leak down test will show if you have compression gasses leaking into the cooling system and from which cylinder(s). The spark plug is removed and compressed air is forced into the cylinder via the spark plug fitting and air bubbles will show up in the coolant of there is a leak into the cooling system.
--------------------------------
Have the problem with overheating addressed immediately. Running the engine with an overheat condition will cause expensive engine damage many times the cost of fixing the overheating issue.

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Dec 29, 2015 | Nissan Cars & Trucks

1 Answer

2004 Pontiac Grand Am 6cycl 3.4L, overheating issues.


Sounds like you had a sticking thermostat when you replaced the waterpump causing an air pocket. Replace the thermostat, and jack the front of the car so that the radiator cap is highest part of the cooling system. Then run the car and burp the air out of the coolant system.

Dec 26, 2013 | 2000 Pontiac Grand Am GT

2 Answers

Pontiac aztek overheating and only blowing cold air


check coolant level,thermostat stuck close,something is not right.

Mar 16, 2013 | 2002 Pontiac Aztek

2 Answers

Overheats intermittenly


Lets use common seen here

Any overheating at all,even one time,you stop
using the vehicle until it is diagnosed & all of the
vehicles issues including preventative maintenance
are caught up on

If you have any overheating, you will damage the engine &
possibly other components, if not already done

Jun 09, 2012 | 2002 Kia Sportage

1 Answer

My 1997 subaru impreza squeals badly and then engine smokes


Hi this sounds weird does the smoke come out from the front engine covers? the squealing could be the cambelt trying to turn a semi or completly ceased waterpump which would cause the smoke after a while, also without the waterpump working properly the engine will leak water and anti freeze out the overflow and overheat really quickly

Apr 22, 2012 | 1997 Subaru Impreza

1 Answer

I have a 1989 s10 blazer 4.3.The temp guage reads 225 is this normal? I have replaced the waterpump,thermostat & belt.


For car running hot and overheating issues, I suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems: ----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

---------------------------
Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.

Feb 20, 2012 | 1989 Chevrolet S-10 Blazer

1 Answer

1991 Subaru Legacy - non turbo Car runs great !! Except my daughter rear-ended another car - it seemed like it did not hurt it but now it keeps going hot. At 1st it was overheating - replaced thermostat...


When your daughter rear ended the other car, she could have caused one hose somewhere to get a kink in it. Please follow especially the pipes underneath to check for a kink. It may be a very small hose but it can cause this problem. It did it to my 1990 VW Golf GTI.

It could also be that there was a metal pipe that bent also and water is not circulating properly.

Feb 09, 2011 | Subaru Legacy Cars & Trucks

1 Answer

Overheating


you have air trapped in the system. very hard to "BURP AIR"

park uphill on ramps if possible. With cold engine, leave radiator cap loose and fill radiator and reservoir. run engine until thermostat opens. squeeze upper radiator hose with hand. SHould be hot. Have heater on hot and blower on too. Repeat as necessary. May take several attempts.

Go here and we can help if that does not work

http://autos.groups.yahoo.com/group/villagerquest/

May 02, 2009 | 2002 Mercury Villager

4 Answers

95 vw jetta over heating


i changed my head gasket and still over heats i need options. also it looses anti freeze and it goes to the exhaust.

Mar 02, 2009 | 1996 Volkswagen Jetta

1 Answer

1994 Ford taurus overheating, no heat...


when you replaced all of that stuff on the vehicle did you make sure that you don't have a vapor lock in the highest anti-freeze line? to fix run vehicle with line disconnected so air can escape then reconnect. if that dont work you will need to put a T splice in the top anti-freeze line so when the vehicle is running you can open the valve and let air out.

Dec 15, 2008 | 1994 Ford Taurus

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