Question about 2005 Chevrolet Avalanche

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2005 Chevrolet Avalanche overheating

My truck is overheating. We've changed out the water pump, thermostat and even the cap on the resevoir. After 10 mins of running, it still over heats to the max heat (and the warning comes on). What else could it be?

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  • Chevrolet Master
  • 5,678 Answers

Could be air look or radiator.Any leak head gasket.

Posted on May 10, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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Mustgo
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SOURCE: Water pump on 2005 Chevy Equinox

Water pump is locate on the front center of the engine.

I will rate water pump change as a 7/10 in difficulty scale.

You should check for special tool(s) requirement from the library before you start.

It's a good time to change the drive belt at the same time.

50/50 coolant mix is fine.

If you haul heavy load or in cold climate then bump it up to 60/40 mix

DO NOT FORGET to find or draw the belt routing diagram before you undo the tension.

A 30 second sketch will save you a lot of time.

Posted on Jul 15, 2009

  • 3 Answers

SOURCE: 2002 Chevrolet Cavalier overheating but no heat in the car.

could be a air pocket in your lines

Posted on Jan 17, 2009

  • 360 Answers

SOURCE: No Heat and Overheating in 1999 Chevy Silverado

After replacing the thermostat, you must bleed the air from the cooling system.

To bleed air from the 2.2L and 2.5L engines, remove the plug or sensor on the top of the thermostat housing. Fill the radiator with coolant until the coolant comes out the hole. Since the plug is made out of steel and the thermostat housing is aluminum, it is a good idea to apply an anti-seizing compound or Teflon® tape on the plug threads prior to installation. Install the plug and continue to fill the radiator. This will vent all trapped air from the engine.

Any trapped air in the heating system will have to be displaced by coolant. Once the cooling system is filled, with the radiator cap off, turn of the heater at it's highest setting. Start the engine and allow it to reach operating temp. You should see a drop in the coolant level as the air in the heating system is displaced by coolant. Add coolant to the proper level and replace the radiator cap.

Keep a close eye on the coolant level for at least the next couple of weeks. The cooling system is a "closed" system. Any significant decrease in coolant level indicates a problem.

If you have any questions, let me know.

Please take the time to rate this solution.

Drive safe and be warm.

clarkco

Posted on Feb 02, 2009

  • 46 Answers

SOURCE: 2005 chevrolet z-71 Truck overheating changed

Check for any signs of water leaking to the ground and if you do locate a leak follow the path. There could be a leak from the drain plugs, water jacket freeze plugs, water pump seals, the coolent temp switch, damaged gaskets, or a small crack somewhere in the coolent system. Check all hoses to see if they leaking or loose at clamps and connections. And if you cannot find a leak anywhere. check the radiater core or header tank, if the leak is in the radiater you should remove and replace, or have professionally repaired. Still can't find any leak. Ckeck your oil for water or foam. And if you do see that it is here, it's most likely a head gasket leak.

Posted on Nov 03, 2011

  • 3 Answers

SOURCE: 'wiring diagram' 2005 chevrolet avalanche heated seats

check heater

Posted on Nov 09, 2011

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Thermostat or water pump


if thermostat or water pump has problem, they have same effect, overheating. but you should remove first the thermostat. this is the easy part of the system you can find if your water pump is deffective. if found dont have flow coming out from upper hose(hose that connects between the radiator and the engine) then it may say the water pump is deffective. since the thermostat already removed, change it.

Feb 12, 2012 | 2005 Chevrolet Avalanche

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Try replacing the radiator cap. A weak cap will allow coolant to leave the radiator and go thru the overflow tube to the reservoir.

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Changed thermostat and still overheating when driving is there a bleeding proceedure


The most common bleeding procedure is to remove the radiator cap and run the vehicle with the heater on max, add coolant whenever the level drops, install cap when it stays at a full level. If there are still overheating issues, replace the water pump.

Jan 24, 2010 | 2005 Chevrolet Equinox

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Problem with No Heat on 2005 Chevy Avalanche - Cooling System?


it is most likey a sticking thermostat it either gets stuck closed or open in your case closed so collant isnt getting to the heater core and all you get is cold air blowing into the truck.
its a simple fix you can either do it your self or take it to a mechanic. now remember there are differnt thermostes so think about the climat you live in and get one according to that

Jan 07, 2009 | 2005 Chevrolet Avalanche

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