replacing antifreeze in my car

How do I change my antifreeze in my Chev 2010 Tahoe. I cant locate the plug How do you drain the old antifreeze and replace with new.

My car has 80000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello, the directions below will only get some of the coolant removed. To do a thorough process requires a flushing machine. If you’d like, a certified Your Mechanic Technician can come to your location to perform this. Please look at this web site for more information and service options.
coolant flush

Use a 1/4 in drive to open and release the drain cock. Located at bottom of radiator.
If the drain cock does NOT seal when tightened, remove the drain cock, clean the drain, and replace.
If the body of the drain cock is broken, remove and replace with a new drain cock.


With Rear Heater 20.0 qt (US)
Note: Recheck fluid level after filling system.
Without Rear Heater 17.5 qt (US)
Note: Recheck fluid level after filling system.

The best way is to have a shop do it a flush machine hooks up to the radiator hose and power flushes the system. At home kits come with a t valve that you splice in the radiator hose. I would drain the system add flush run the vehicle to loosen everything up then remove the lower radiator hose and run a garden hose into the top and let it run until its clean.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Peak – 10X Universal Antifreeze and Coolant: 50/50 Ready To Use, Protection Against Corrosion, 1 Gallon (Part No. PKPB53)
2 gallons. 2 people think this is helpful.
5.3L V8 1500 Series:16.6 qt (15.7 L) 6.0L V8 2500 Series and 3500 Series:17.0 qt (16.1 L)
Every vehicle manufacturer, including Chevrolet has developed its own coolant or requires a conspicuous coolant that is unique to particular years and models. There are many colors of coolants to help distinguish each including yellow, red, green, blue, purple and orange.
General Motors ACDelco DEX-Cool Coolant Antifreeze – 12346290 OEM New.
Critical Signs that Your Vehicle Requires a Coolant Service

Leaking coolant. Overheating engine. Steam coming from under the hood. Radiator fluid that is dirty or rusty in color.

How much coolant your car holds and thus will require depends entirely on its engine and cooling system. A relatively small displacement 4-cylinder engine could contain as few as six or seven quarts, while a large American V-8 engine might hold more than 16 quarts.
An average engine holds about 3 quarts (2 liters) of coolant, but this amount may vary depending on the vehicle`s make, model, and type. For example, some Toyota models use only 1.5 quarts (1.5 liters), while others require 3 quarts (3 liters).
This engine is found in a variety of Chevy vehicles, including the Silverado, Tahoe, Suburban, and Avalanche. The 5.3 liter engine is a V8 engine that offers good performance and fuel economy. It has a displacement of 5.3 liters and produces up to 320 horsepower.
A 5.3-liter Vortec engine takes approximately 6 quarts of oil.
The right mixture of antifreeze and water matches car performance levels and ensures the heat does not get the better of your vehicle system. Vehicles require different coolants that suit their engine, without which air in the system can cause the engine to overheat.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Replaced alternator on car 2 times each time shows it’s charging 14v let car run for a little bit then test drive and car voltage
ANSWER : There are reports that the replacement alternators will not communicate with the engine computer and will not charge correctly. I recommend using only the manufacturer approved replacement part. It can be new or remanufactured but approved for use in the vehicle. Some lower cost alternators on the aftermarket will have charging problems since they will not communicate with the ECM on the vehicle and will stop charging.

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My heat in my car stopped working two days ago and now my car is overheating. I put antifreeze in my car and it’s still overheating 2006 Pontiac Grand Prix
ANSWER : Hi there – you may have 2 related events here, a coolant leak, and a problem with the heater system. The current issue may be air inside the cooling system, which can cause overheating, and a lack of heater function. The lack of heater function could have 5 causes: the engine is not getting up to correct temperature (center of the gauge) due to a malfunctioning thermostat, the heater control valve is not letting hot coolant into the heater core, there is a restriction in the heater system that is preventing adequate hot coolant flow through the heater core, the heater fan is not working to transfer heat from the heater core to warm air for the passenger compartment, or the air blend doors inside the heater are not working properly to route warm air to the desired vents. I would recommend a heater system inspection]( by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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I had my radiator replaced also my lower radiator holes replaced and my car keeps shaking really bad when the car is still
ANSWER : The shaking could be the result of a number of issues, including the engine having a misfire (not firing on all cylinders). The radiator replacement would not have created this condition. The vehicle should be inspected in order to diagnose this issue. A YourMechanic certified mechanic can come to your home or place of business to perform a car is shaking or vibrating inspection on your vehicle.

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My car wouldn’t start after battery was just replaced my car cd player is running after I turn the car off
ANSWER : Your CD player definitely should not be running after the key is off and out of the car. It will certainly drain your battery. So the good news is you can be reasonably certain about what is killing your battery. I would remove any CD’s from the player and see if it still spins with the key out of the car. If you need to go a step further, you will need to disconnect the power wire to the stereo. It is located at the back of the stereo and this will require some dash disassembly to access the rear of the radio.

You will want to disconnect the stereo overnight to see if the battery dies. A quicker more accurate way of testing for a draw, which is what this is called, is to use an amp meter at the battery to confirm the stereo is the source of the draw. Most multimeters have amp settings that can be used up to a ten amp draw. You will need to connect the leads of the multimeter inline with the positive battery cable. Do not turn the key on while the multimeter is inline with the battery. The current will blow the fuse in the multimeter then you won’t be able to complete the test. Also, you will need to wait somewhere between ten minutes and an hour for all the modules in the car to go to sleep. Modules that are on will draw current until they go to sleep. You are looking for a draw of more than a half of an amp continuous.

With the multimeter connected, disconnect the radio connector and see if the draw goes away. You will see this reflected in the multimeter amperage reading. This draw test can be used to locate any draw that may be occurring. If you find the radio is not the culprit, you should then begin removing fused one at a time to see what is causing the draw. When the draw goes away after removing a fuse, something on that fused circuit is causing the draw.From there you will need to study a wiring diagram to see what is on that circuit.

Of course, all this takes an understanding of electricity to do these test. If you should need assistance with this, I recommend the following inspection; Battery is dead inspection from a certified technician from YourMechanic.

Good luck!

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I put the wrong key in my car and a few weeks later my car just shut down and it will not start I believe it’s the computer but…
ANSWER : Hi there. What had happened is the wrong key set the security to the vehicle. This is to prevent the vehicle from starting with the wrong keys. Try removing the battery cables (+) and (-) for 13 minutes. During that time, put the original key in the ignition and turn it on. Activate everything in the car even though there is no power. Then remove the key and hook up the battery cables. The computer should have reset and reset the security. If the security is still being tripped, then I recommend seeking out a professional, such as one from Your Mechanic, to help you

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What maintenance should I do to my 2005 Saturn Ion?
ANSWER : First off, yes your vehicle does have a timing chain. It is good that all that maintenance has been performed recently and should carry you for many miles. However, if you cannot verify the age of the coolant and fuel filter, it may be a good idea to replace them both even if they "look" good. One item you failed to mention is the brake fluid. Brake fluid is hydroscopic – it absorbs moisture. When it does, it’s boiling point is reduced which can lead to brake fade or loss, and reduce the life of components like anti-lock brake pump which can cost $2-$3000 to replace on some vehicles. Especially when it comes to vehicles equipped with anti-lock brakes, it is a good idea to have the brake fluid flushed every 2-3 years, regardless of mileage. Have a certified technician perform your maintenance needs like flushing the brake fluid for many miles of trouble-free driving.

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Jumper cables crossed.The car wouldn’t start. Found it was a fuse that blew which we replaced. The car turned on but then we had t
ANSWER : If you are very lucky, you may just need a battery. When you cross the jumper cables, you can do a lot of damage in the blink of an eye. If it just trashes the alternator and the battery, you have beaten the odds. You could try disconnecting the battery to see if it still goes dead. If it does, you may just need a battery. If it doesn’t go dead when disconnected, then you have a draw in the system. In your case, you might have damaged one or more diodes in one of the many control units that inhabit your car. Testing for an off key draw is time consuming and requires a pretty thorough knowledge of the car’s systems. You can have this thing checked out by a pro by contacting Your Mechanic. They can send a technician to your home or office to check out your battery drain and advise you as to the next step.

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2004 Mitsubishi Galant just got the starter replaced brand new car won’t turn over I have an alarm in my car can that sensor the c
ANSWER : If your vehicle was not starting but was turning over, I would have advised against the starter replacement. If the engine will turn over, the starter is doing its job. If you have an aftermarket security system on your vehicle, are unable to start your car, and are unable to lock and unlock the doors, I would recommend having the aftermarket security system inspected. The best place to have this done would be the place that it was originally installed as they would have the best knowledge of the system. This could be related to wiring, control modules, or other related components. Once the security system has been inspected, the repair procedure will be more clear.

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