Instructables

How to Burp your car's cooling system

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Picture of How to Burp your car's cooling system
This instructable will walk you through the simple process of "burping" or getting all of the trapped air out of your cars cooling system. This works for ALL Vehicles

If you have had any parts replaced on your cars cooling system (radiator, waterpump, new hoses, ect) then there is a chance that your cooling system has air trapped in it and this could make your cars cooling system operate poorly, or in worst cases minic the symptoms of a cracked  head.

So BEFORE you spend thousands of dollars at the mechanics having this done, try this and see if your cooling system operates normal (temp stays within normal , does not get hot or overheat).
 
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Step 1: Things you will need

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AnitFreeze or Dex cool, I used the 50/50 water dexcool mix

Spill free funnel ($20.00 on Amazon.com)

Rag to wipe area clean

Time and Patience

Step 2:

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Make sure that your overflow tank is at the level of coolant where the line marked "COLD" is, make sure that you car is cold, do not try this with a engine that has been running.

Open your radiator cap, insert the angled peice of the spill free funnel into the correct cap for you car, then the main peice of the funnel on that, Make sure that you have all conections on sung so that there are no leaks.

Step 3:

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Now fill the funnel a little past half way, the reason for this is when your cars thermostat opens up the level will rise and drop with the opening and closing of it and with the escaping of the trapped air.

YOUR CAR SHOULD BE OFF, DO NOT START YOU CAR YET!!

Step 4:

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Go to your car, and set the climate controll settings to the hot or heat setting but make sure that the fan/heater is in the OFF posistion.

NOW you can start you car.


kreis-mendoza3 months ago

this is kinda cool cuz the instructions arent too overloading.im a pretty inpatient woman lol

Malhecho1 year ago
a few years ago i screwed the pooch and blew my head gasket trying to backflush and burp.
amclaussen1 year ago
Hi there, I have some comments for your Instructable:

1) I don't like DEXCOOL at all! To see why, just search for it in Internet, and soon you will start to see that it is frequently dubbed "DeathCool". GM decided to order Texaco a new (then) coolant formula. Those guys developed one that produced a lot of problems; you will read about gelled coolant, damaged intake manifold gaskets, totally ruined engines and thousands of legal demands and Class Action Suites!
I suggest that first you find the kind of coolant that the engine needs, then get a recognized brand. I use Chrysler's own "Long Life" formula with very good results. Today, coolant formulas come in several colors (but sometimes color is not entirely representative of the type of chemistry of the coolant). but if engine has Aluminum, iron and other metals components, a "Long" or "Extended" life type of coolant is most probably the best bet. Be aware that even when the container says something like "5-Year" formula, after the first change, it will NOT endure for so long, because now the engine will have some corrosion, therefore the replaced coolant won't last as long as when the engine was brand new, so a more frequent replacement is desirable. I do it every 3 years when using the Chrysler "5-Year" formula, toghether with a complete flush, back-flush and complete hose and belt exchange. in that way, my cars are as reliable as possible regarding cooling system performance.
2) Coolant is made with Ehylene-Glycol as its main constituent, and this chemical EATS most factory paints right away!, thus, if ANY spill occurs over any painted surface, you will need to have PLENTY of clean water at hand to wash and quickly dilute the spilled coolant. Your Instructable says: "have a rag to wipe any coolant off of your car", that is not enough, and can get some paint damaged.
3) Modern (say, after 1990 engines) do get to proper operating temperature in much less than an hour if the ambient temp is not too cold outside, therefore, after starting, about 15 minutes of idle is enough if the thermostat is in good working order.
Best wishes. Amclaussen, Mexico City.