Question about 1996 Pontiac Grand Am

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When my car warms up the resivoir for the radiator starts exploding like a volcano. it has antifreeze in it but as soon as the car starts to reach its normal temperature antifreeze starts shooting out

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  • global1207 Nov 06, 2010

    DOES YOUR CAR OVERHEAT?
    IF YES THE GASKET IS BLOWN>>>

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Themastat is bad

Posted on Nov 06, 2010

  • Anonymous Nov 06, 2010

    sticky themastat

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My 1991 Chevy Cavalier has just turned 100, 500 miles and has started acting up, went to ck my antifreeze and when i took the radiator cap off ( car is started) the antifreeze in the car was just sitting...


It does not circulate until the engine is warm. At that point the thermostat(cooling valve) opens allowing the coolant , from the radiator ,to circulate into the engine. Before that point only the coolant already in the engine circulates, inside the engine alone. .

Nov 26, 2014 | Cars & Trucks

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Radiator resivoir is cracked and fans not running and i need to replace the radiator and or run a toggle switch for the fan relay switch if the wiring is bad


It may already have a blown head gasket. The max pressure on the cooling system in normal conditions is 18psi.
How do you know the fan or fans are ok ? The computer signals the relay to turn the fans on if the engine temp reaches 220 degrees or you turn on the a/c. If the temp sensor does not have coolant to tell it the engine temp, the fans won't come on.
As for a toggle switch, you would need a relay mounted close to the fans because they will pull too much current thru only a switch.

Jun 27, 2012 | 1995 Dodge Neon

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The radiator was emptied out and i want to add antifreeze and water? there are 2 areas that say antifreeze goes here?


  • One is the radiator and the other is an overflow tank. Sometimes anti freeze will back pressure a bit and need somewhere to go and other times the antifreeze gets low in the radiator. That is the purpose of the radiator.
  • Put the antifreeze in the radiator fist and then add to the reservoir. Pay attention to the cold/hot level fill on the overfill tank.
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  • Otherwise keep an eye out for a leak and repair it soon.
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Jun 15, 2011 | Ford F-250 Cars & Trucks

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My 1997 Dodge Neon heats up sometimes, but there is not any pattern to it, as in sometimes it is hot out, sometimes cool, sometimes I am in town going slow and stopping and starting, and sometimes on the...


My neon would be bubbling in the resevoir when I stoped, I replaced the radiater, thermostate, hoses,
and it was still doing it? Finaly replaced the radiater cap and that solved the problem! Also you could have air in the system too? here is how to purge your system. Make sure your car is cooled down so you won't get burned, take off you radiater cap, Drain your antifreeze out of your radiater at the cockpit,about a gallon, close your cockpit, Jack the front end of your car up high so the radiater is higher than the thermostate housing, have a funnel ready to pour your antifreeze back in at the radiater cap throat, roll your windows down, and turn you heater on high! start your engine and slowly pour you
antifreeze back in untill full, when you start seeing it start to come out and can't get anymore in put your new radiater cap on, let the car run for 20 minutes with heater on high, after your fans kick on and stop, when engine is warmed up, turn your car off. Lower your car and check to make sure resivoir is at full mark. I hope this helps it worked for me!

Apr 30, 2011 | 1997 Dodge Neon

2 Answers

Car is still over heating, have replaced heat sensor switch,fuel sensor switch,fuel air sensor and flushed the radiator.


Have you changed out the thermostat and checked for exhaust blow by from a head gasket leak? One quick way to check for blow by would be if you start the car with the cap off on the radiator and see if antifreeze begins to rise up in the radiator before the engine warms up. Exhaust leaking into the water jacket will bubble up through the radiator. This hot exhaust gas will cause you to overheat. A stuck thermostat will keep the antifreeze from ever reaching the radiator to cool down also causing you to overheat.

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Three cars in my house leak antifreeze, all three around 100k miles. car1.leaks slowly, warms a little 98 lumina. Dad say water pump. car2. leaks alot, warms really nice 99 lumina. car3. leaks alot, been...


SOUND LIKE RADIATOR HOSES AND RADIATOR.ONLY WAY TO CHECK IS FILL UP RADIATOR WITH COOLANT.CRANK UP CAR UNTIL WARMS UP.LET RADIATOR PRESSURE BUILD UP.THEN TURN OFF CAR.LOOK FOR WATER LEAKS AT RADIATOR HOSES AND AROUND THE RADIATOR.

Jan 07, 2010 | 1997 Ford Taurus

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How change antifreeze in car raditor?


At the bottom of the radiator there is a plastic knob this is the petcock drain plug it can be hard to see and turn so you may need to jack up the front of the car a little to crawl under the front and look at the bottom of the radiator but if you can reach it from the top and turn it with a pair of pliers do so that way this will allow you to drain the radiator, remove the radiator cap if it has one to allow air to pass through radiator, if it has no radiator cap remove the cap on the radiator expansion reserve tank, after all antifreeze is drained turn petcock drain plug back in till tight then refill raidiator with 50% water 50% anti freeze mixture, start car and top off antifreeze run the car or drive for ten minutes then top off antifreeze.

Sep 11, 2009 | 1999 Mazda 626

1 Answer

My 98 subaru forester is over heating


Change the gasket is a must. You don't want antifreeze mixing with your engine oil. The antifreeze is carrosive to the engine bearing. The other thing to is if your radiator hose is soft and lod, they can and will collapse ristricting the flow of antifreeze.
Last to look at would be a weak water pump and you are going to have to change that.
 Start with changing the radiator hose since it's the cheapest. Keep an eye on the oil antifreeze to make sure you aren't have the two mix. 
Change the intake manifold gadket soon as posibel.
Good luck and hope this helps.

Apr 22, 2009 | 1999 Subaru Forester

1 Answer

2002 ford explorer has no heat at Idel


The vehicle sounds to be low on antifreeze. Have your fluids checked and the radiator checked and top off fluids if need be.

Nov 07, 2008 | 2002 Ford Explorer

1 Answer

Engine will not start after engine over heated 1998 626 mazda 2.5


CHECK ALL OF THE HOSES, LOOK FOR ANY LEAKS OF ANTIFREEZE,CHECK THERMASAT SOMETIMES THEY CAN GET STUCK AND WON'T OPEN SO IT CLOSES UP AND DOESN'T ALLOW ANTIFREEZE TO PASS THREW THE MOTOR AND DOESN'T REACH THE TEMPERTATURE REQUIRED,TRY FLUSHING THE RADIATOR,IF NOT CHECK OUT YOUR WATERPUMP MAYBE ITS NOT WORKING,TRY GETTING FIX SOON IF IT OVERHEATS TO MUCH IT CAN BLOW YOUR HEADGASKET

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