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How do you drain the coolant system - 2004 Chevrolet Impala

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YOU CAN EITHER OPEN THE DRAIN PORT ON THE RADIATOR OR DISCONNECT THE LOWER RADIATOR HOSE

Posted on Jul 18, 2009

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If you can't find the drain petcock or it does not open, remove the lower hose from the radiator...carefully or you will get a bath!!!

Posted on Jul 18, 2009

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How do you flush the cooling system


Open radiator drain & coolant cap

Drain coolant----close rad drain & refill

50% Coolant 50% Distilled water

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What is proper method for flushing the radiator and engine in a 1999 Pontiac Montana?


1: Drain coolant system
2: Purchase coolant flush, making sure you have the proper amount for your size of coolant system
3: Pour coolant flush into your radiator, filling the rest with water
4: On the coolant flush bottle it will tell you how long to run your vehicle
5: Once done running, let cool enough to open radiator cap, and drain system COMPLETELY by first draining out of pep **** on radiator, then taking one side of the hoses off the radiator and draining those
6: Put hoses back on and fill system with coolant. When the fluid gets to the top of the fill port on radiator, start vehicle and let run, allowing air to escape the system, and fill as necessary

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Trouble draining coolant on 2005 Mercury Grand Marquis


The engine holds coolant and so does the heater core, the core not much but the engine holds maybe 2 or so gallons, the engine has coolant in the intake ,heads and block. to say you can drain it all complete is impossible, unless you find drain plugs on the side of the engine block and remove them, there is one on each side of the block, if you removed those you would get 90% of the coolant,with also draining the radiator. the only other way would be with a flush machine. i am a tech and the way you said the coolant was clean and you drained all you could then i would say if you keep doing it the way you are you will be fine, i drain mine the same way every year which is to soon for some but not me and i have never had a problem. the only time i drain the blocks at work is when people dont change the coolant for years and it gets rusted, then i remove the plugs. keep doing the flush the way you are and it will be fine, good day. have a good day.

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1 Answer

How do you remove a thermostat from a buick park avenue


  1. Drain the cooling system.
  2. Remove the engine cover.
  3. Disconnect the Inlet hose from the housing.
  4. Remove the thermostat housing bolts (A), thermostat housing (B), and the Thermostat (D).
  5. Clean the gasket mating surfaces and the housing and intake port.
To Install:
  1. Install the Thermostat (D).
  2. Install the thermostat housing (B) with a new gasket (C) and torque the bolts (A) to 15 ft-lb (20 Nm).
  3. Connect the inlet hose.
  4. Install the engine cover.
  5. Refill the cooling system.


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To Drain:
NOTE: Draining the cooling system with the pressure cap installed will siphon the coolant from the overflow tank.
  1. Raise and support the vehicle.
  2. Open the radiator drain **** and drain the coolant into a drain pan.
  3. Empty and wash out the coolant reservoir with soap and water.
  4. Inspect the coolant if discolored flush the system before refilling.
To Fill:
CAUTION
Follow the procedure below to insure the coolant is at the proper level. A coolant level that is too high or too low could cause engine damage.
  1. Close the radiator drain **** and lower the vehicle.
  2. Slowly fill the cooling system with a 50/50 mixture of DEX-COOL antifreeze and clean drinkable water.
  3. Install the coolant pressure cap and start the engine.
  4. Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature than let the engine idle for 3 minutes.
  5. Turn the engine off and let the engine cool off.
  6. Top off the coolant and check the concentration of the coolant using the (J 26568) coolant and battery tester.

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Where is the drain plug for the radiator


Should be a drain **** at the bottom of the radiator that unscrews out. It looks like a wing nut has been welded to a bolt on the end of it. Another way to do this is just pull off the bottom hose.

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2 Answers

Drain cooling system


Make sure the engine is cold before you drain the cooling system. First remove the radiator cap. Under the hood on the bottom of the radiator you will find a drain plug. You turn it counter clockwise and drain the coolant into a container. After it has been drained add new coolant using the half and half (half coolant half clean water.) After having added the coolant. Be sure to add the kind of coolant that ,("goes with any color".) Replace the radiator cap.Run the engine to operating temerature then be sure to bleed the cooling system. They have a bleed screw near the thermostat housing . (That's where the hose from the radiator connects to.) Make sure all the air comes out from the bleed valve screw until coolant starts coming out. Tighten the screw and let the engine get cool again. check that there is coolant in the container where it says coolant only near the radiator.

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How to flush radiator in a 2004 Mitsubishi endeavor


Drain your existing coolant from the coolant system there should be a drain petcock on your radiator along the bottem. Once the coolant is drained add water and a radiator flush solution, availeable from most auto parts stores, refill your coolant system and run your engine usually 10 minutes or more. Check the instructions on the type of cleaning solution you buy. Afterward drain the coolant system, flush with water by filling and running it again, then drain and service with proper level of coolant. Always remember to let your engine cool between runs to safely remove your radiator cap DO NOT remove the radiator cap if engine is still hot from running.

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How do i change coolant ,I drained system from resivoir cause there is no rad cap but trying to refill with coolant is impossible the system wont take fluid out of resivor now and light gage inside says...


see if you can remove top radiator hose at highest oint on motor  and fill, you can drain coolant at bottom of radiator with wing nut type drain fitting

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Where is the drain valve on 2002 dodge caravan radiator?


its a pitcock facing the cab bottom of the radiator, plastic flat. once you find the pitcock just put a bucket underneath and turn it.then refill. if you want to flush(run fluid thru to clean it out) the radiator id suggest taking it in. you dont have to flush it every time you change the coolant out.

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1 Answer

I replaced the alternator on my 2003 Range Rover


I Suspect that you have AIR in your COOLING SYSTEM Fallow Procedures BELOW to Insure there is NO AIR IN COOLING SYSTEM


Draining and Filling Cooling System

Draining Procedure

Important: Do NOT add any engine coolant supplement sealant pellets to the cooling system. Drain and refill the engine cooling system every 5 years or 240,000 km, (150,000 mi) , whichever occurs first.

  1. Park the vehicle on a level surface.
  2. Remove and clean the coolant recovery reservoir.
Caution: Refer to Radiator Cap Removal Caution in Service Precautions.

  1. Remove the radiator cap when the engine is cool:
3.1. Slowly rotate the cap counterclockwise to the detention tab. Do not press down while rotating pressure cap. 3.2. Wait until any residual pressure, indicated by a hissing sound, is relieved. 3.3. After all hissing stops, press down on the radiator cap and rotate the cap counterclockwise in order to remove the cap.
Important: Recover and store used coolant in a used coolant holding tank and submit the used coolant for recycling on a regular basis. Do NOT pour used coolant down the drain. Ethylene glycol antifreeze is very toxic. Disposing of ethylene glycol into the sewer system or ground water is both illegal and ecologically unsound.

  1. Place a drain pan under the radiator drain valve in order to collect all of the used coolant.
  2. Open the radiator drain valve located at the bottom of the radiator tank. If only partial cooling system draining is required, drain enough coolant to perform the procedure.
  3. Open the air bleed valve on the thermostat housing 2 full turns
    1. Open the air bleed valve above coolant pump 2 full turns.
    2. Place a drain pan under the engine block drains in order to collect the used coolant.Important: Allow the coolant to drain completely.

      1. Remove both of the engine block drains.
        • The front left engine block drain is located between the starter motor and the engine oil filter.
        • The rear right engine block drain is located near the crankshaft position sensor.
      Filling Procedure
      Reinstall the engine block drains
    3. Close the radiator drain valve,
      1. Install the coolant recovery reservoir. Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL coolant. If Coolant other than DEX-COOL or HAVOLINE DEX-COOL is added to the system the engine coolant will require change sooner; at 50,000 km (30,000 mi) or 24 months.
      2. Slowly add a 50/50 mixture of GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL and clean, drinkable water to the radiator until the coolant level is at the base of the radiator fill neck.
      3. Wait for 2 minutes and reinspect the level of the coolant in the radiator. If necessary, add coolant to the radiator until the coolant level is at the base of the radiator fill neck.
      4. Install the radiator cap.Ensure that the radiator cap arrow points toward the radiator overflow tubeImportant: The air bleed valves are brass. Do NOT over-tighten the air bleed valves.

        1. Close the air bleed valve above the coolant pump.
          1. Close the air bleed valve on the thermostat housing.
          2. Fill the coolant reservoir with a 50/50 mixture of GM Goodwrench DEX-COOL or HAVOLINE DEX-COOL and clean, drinkable water. Caution: Refer to Radiator Cap Removal Caution in Service Precautions. Important: If the coolant temperature indicator turns ON, turn the engine OFF immediately and allow the engine to cool. Do NOT remove the radiator cap.
          3. Start the engine and allow the engine cooling fan to cycle on and off 3 times. If the low coolant indicator does not turn OFF and the coolant level is above the Full Cold mark on the coolant recovery reservoir, refer to Engine Coolant Temperature Gage Inaccurate or Inoperative.
          4. Turn off the ignition.
          5. Allow the engine to cool.
          6. Ensure that the engine coolant concentration is sufficient.

Feb 21, 2009 | 2001 Pontiac Aztek

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