Question about 2000 Pontiac Grand Am GT

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Engine overheating i changed water pump and thermostat. not sure how to bleed air from system

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The best way to flush it would be to take off the bottom radiator hose and pump water through the fill nozzle after all the coolent is out you can then hook the hose back up and replace it with new coolant.

Posted on Feb 01, 2009

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Cool the radiator down by running cool water over it, while the engine is running. Slowly remove the radiator cap to the first notch to bleed off any pressure, while keeping cool water flowing over the radiator.

Once pressure has bleed off, remove cap, add coolant as needed.

Replace cap. Check overflow level in overflow tank.

If you got the engine hot AFTER replacing the thermostat, go get another thermostat and replace again. Once a stat get's overheated, they don't like to work right again.

Then, make sure the radiator is clean and clear of sludge. If you have sludge, your going to chasing this for awhile.

Posted on Feb 01, 2009

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2002 toyota sienna I just replaced my water pump and thermostat and check engine light came on so hooked up scanner and is telling me problem is thermostat. What should i do?


Change your thermostat, flush your cooling system while your at it, make sure you bleed the air out of the system when you refill.

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Changed a radiator today, drained system. Hot water will not heat now. Heating and radiators are working ok


Helen, if it is the radiator in your car that was changed, you may have air in the cooling system that needs bled out. May also be a failing water pump, thermostat,etc.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How To Bleed Cooling System EricTheCarGuy
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Mazda 626 is overheating. changed the thermostat twice in 10 weeks Both fans are working;increase temp when Accelerating.tried to bleed air from the system but this model doesn't have a bleed valve.


is coolant circulating in motor/radiator? does radiator top hose get hot when engine has been warmed up? might be water pump, not thermostat. and you do have plenty of antifreeze/coolant in radiator I'm sure.

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2000 chevy corvette changed water pump and therm bubbling through rad cap


there should be no air in the cooling system and the system can be bled by using a pressurising equipment . Ensure that the thermostat is placed in the motor the right way with the body facing the hot water (head or block). Air defeats the purpose of having a pressurised cap and system.

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Where is the bleed valve located on a 1998 pontiac grand prix 2.8 engine? The auto parts store has never heard of a bleed valve.


Was the thermostat changed? I would suggest replacing the thermostat refill the system with new coolant and purge the air out of the system.

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How to change a water pump on a 2000 intrepid 3.2 engine


3.2L & 3.5L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Drain the cooling system.
    WARNING Do not use pliers to open the plastic drain.
  3. Remove or disconnect the following:
    NOTE It is good practice to turn the crankshaft until the No. 1 cylinder is at Top Dead Center (TDC) of its compression stroke (firing position).
    Negative battery cable Coolant recovery cap and open the thermostat bleed valve Drive belts Timing belt Water pump mounting bolts, noting the position of the longer bolt Water pump. Discard the O-ring seal.
  4. Clean the gasket sealing surfaces, being careful not to scratch the aluminum surfaces.

    ee818be.jpg
    Fig. Water pump bolt locations, make sure to note the position of the longer bolt
To install:
  1. Install or connect the following:
    WARNING Rotate the pump and check for freedom of movement.
    New O-ring and wet with clean coolant prior to installation. Be sure to keep the new O-ring free of any oil or grease. Water pump with a new O-ring. Torque the water pump-to-engine bolts to 105 inch lbs. (12 Nm). Timing belt Drive belts
  2. Fill the cooling system by performing the following procedure:
    1. Close the radiator drain.
    2. Open the thermostat bleed valve. Install a 1 / 4 in. (6mm) clear hose about 48 in. (1.2m) long to the end of the bleed valve and the other end into a clean container. The intent is to keep coolant off of the drive belt(s).
    3. Slowly, refill the coolant recovery bottle until a steady stream of coolant flows out of the thermostat bleed valve. Gently squeeze the upper radiator hose until all of the air is removed from the system.
    4. Close the bleed valve and continue to fill the coolant recovery bottle to the proper level. Install the cap on the bottle and remove the hose from the bleed valve.
  3. Reconnect the negative battery cable. Start the engine and allow it to reach normal operating temperatures.
  4. Check the cooling system for leaks and correct coolant level.
    WARNING Be sure that the thermostat bleed valve is closed once the cooling system has been bled of any trapped air.

Good luck (remember rated this).

Jul 19, 2010 | 2004 Dodge Intrepid

2 Answers

Blower working but dont have no heat i changed the thermostat still not working im hoping its not heating core any suggestions


if the cooling system is not clogged and the water pump is ok then there may be air trapped in system, bleed air from system if need be. if air is trapped in system you will not get any heat. start car let it run take cap off of coolant tank then find bleeder for the coolant system, open bleed screw and air may be trapped in system.make sure coolant is at a proper level. do not forget coolant tank cap when done.

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3 Answers

98 FORD EXPLORER HEATS UP


If your guessing the thermostat, I think your guessing right. Easy job to replace it, use a fail safe thermostat next time to avoid this problem in the future. Good luck.

Jul 01, 2009 | 2000 Ford Explorer

3 Answers

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


the thermostat (on bmw replacement parts) have an arrow that has to be installed facing upward.if this was done correctly,to bleed the system usually there is a bleeder screw on or near the expansion tank(where you fill the coolant) and possibly on the thermostat housing. i would recommend opening both bleeders and keep filling the system with coolant closing the lower bleeder first and then allow the rest of the air purge from the other bleeder screw.make sure the coolant stays full and be patient you can't wait TOO long.

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