Question about 2003 Chevrolet Blazer

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Just replaced radiator in 2003 blazer old radiator leaked all fluid out put new fluid in to get home do i need to flush and fill or just fill ok do i need to jack up above heater coil to fill and does the v6 have a bleeder valve cant find one

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Flush & fill is best -just fill is ok,you can fill it through the over-flow tank,(may take a while ) or remove the radiator cap & fill there

Posted on Apr 09, 2011

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Posted on Jan 02, 2017

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2 Answers

How do u bleed the water system for overheating?


The most common issues with the cooling system can be broken down into 3 categories. (Fluid Type) (Fluid Purity) (Stuck Thermostat)
(Fluid Type)
If your vehicle is cooled with *Dexcool* then your system will need to be flushed regularly. About every 7k-10k miles or so. The reason being, Dexcool congeals (gels) as it gets older, and will clog the entire system from radiator, to the heater core, stopping the flow of coolant.
(Fluid Purity)
If you are replacing your coolant with tap water, it will not have the cooling capacity of a proper 50/50 mix.
(Stuck thermostat)
Coolant will not circulate if your thermostat is frozen shut. There are ways to test it, but in most cases, it is easier, and sometimes cheaper, to just replace it.
Now, to answer your original question, take the top radiator hose off at the radiator, then loosen the butterfly bolt located at the bottom of the radiator. Not all radiators are equipped with the bleeder, so simply take off both the top, and the bottom hoses. This will drain all coolant from the radiator. To do a "fluid flush" is a bit more difficult. Remove all hoses going to the radiator, remove the thermostat, and at the thermostat connection to the engine, purge the system using a garden hose tapped from your home. A shop will do the purge with 50/50 mix to flush the system and catch the old fluid as it comes out, but not needed if you do it at home. Flush the radiator the some way, using the top at the hose connection point. Just run the water through until it comes out clean. Reattach all hoses and thermostat. Go to your local parts store and buy a 50/50 premix that is appropriate for your region.(cooler for warm weather, warmer for cold) and do not add water. They come mixed ready to put in the vehicle. Make sure you fill it up where you are supposed to. If you have the old style radiator, the cap is located directly on the radiator. If you have a reservoir, fill it up to the line. *****Make sure you you start the vehicle to operating temperature to fill the reservoir to the appropriate level.***** I hope this helps. Good luck!

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Aug 17, 2015 | Cars & Trucks

1 Answer

How do i change the radiator fluid?


Most radiators have a drain plug on the bottom tank the engine block also has a drain plug . Remove the radiator cap ,open both drains ,let all the coolant run out, if there is no radiator plug remove the lower hose , remove the heater demister hoses, with the heater control on hot flush out all the coolant from the heater radiator. with a garden hose, till the water runs clean, tighten the radiator plug or re fit the hose,put a garden hose into the radiator and flush out till the water at the block plug runs clean ,refit the heater hoses, refit the block plug, fill the radiator from the hose leave the cap off , If it has a overflow tank clean and flush it. start and run engine for 5 minutes top up radiator if needed . stop engine and drain out all water. most important that all old coolant is drained out, only buy the best coolant you can . If you make up your own use only distilled water. keep some to top up with never mix with another brand. Fill radiator with coolant top up over flow tank, run engine top up coolant as needed, refit radiator cap run for another 10 minutes check for leaks,

Oct 14, 2014 | 2006 Chevrolet Trailblazer

1 Answer

Radiator leak


U need to find the leak first. I would start by checking the top and bottom hoses and then check the two heater hoses. if they r ok then look at radiator itself. u don't want to put new fluid in and then have to drain it to fix a leak

Apr 10, 2014 | 2005 Chrysler Town & Country

1 Answer

Power steering fluid in coolant


You have a bad Radiator, the Transmission Cooler that runs through the coolant tank is leaking. Replace radiator and all coolant lines as Trany fluid will eat them from the inside. Also have your Transmission Flushed and new fluid.

Jul 08, 2013 | 2003 Ford Escape

1 Answer

Car keeps overheating


Assuming the engine is ok, no leaking head gasket or exhaust problem, you need to know if the radiator fan comes on when the engine reaches 225 degrees. It should also come on when you turn the ac on if the ac works.
Its also possible you have air in the cooling system.

Jul 20, 2012 | 2005 Dodge Neon

1 Answer

Just bought 1995 lebarron radiater was really rusty inside and running hot i flushed it following directions on bottle discovered it leaks put bars stop leak silver powder in it drove fine from cali back...


Get a new radiator. Sounds like your old one is too far gone-will only keep giving you problems. Flush the whole coolant system, maybe a good strong back flush at a radiator shop or shop.
Bars stop leak is okay for an emergency, but most mechanics say don't use it as it can sure plug up a heater core.

Apr 18, 2012 | 1995 Chrysler LeBaron

1 Answer

How to change a thermometer in a 2003 toyota camry


For radiator replacement procedure and radiator problem troubleshooting. I suggest you to click the link below and follow the detailed procedure :-----


Why Transmission fluid leaks near radiator?

http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html

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Transmission fluid leaking?

http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html


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How to replace Radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-audi-and-vw.html

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HOW TO REPLACE AN UPPER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-upper-radiator-hose.html

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HOW TO REPLACE A LOWER RADIATOR HOSE

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-lower-radiator-hose.html

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How to replace Radiator on Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-acura-car.html

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How to flush cars radiator?

http://repairhelpcenter.blogspot.com/2011/11/how-to-flush-cars-radiator.html

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HOW TO PRESSURE TEST A RADIATOR AND CAP

http://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html

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HOW TO REPLACE A RADIATOR

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator.html
------------------

HOW TO REPLACE A RADIATOR SUPPORT

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator-support.html

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This details will help.

Thanks.

Feb 06, 2012 | 2003 Toyota Camry

2 Answers

The fluid from my transmission is mixing with radiator fluid. I was told that the core is burnt out in my radiator, and all that was needed to be done is to replace the old radiator with a new one and...


Hello
What happened is the tube that goes thru the radiator sprung a leak and coolant is getting in the trans and visa-vera so the answer that you got is 100% correct. But you have to change trans fluid and coolant and do NOT drive or you will be buying a new trans. Thanks

Jan 16, 2011 | 1984 GMC S-15 Jimmy

2 Answers

1999 mercury sable trans fluid in radiotor


replace radiator, the trany cooler which is part of radiator is leaking inside radiator, flush cooling system after replacing rad, also i would flush trany also to be 100% sure that theres no coolant in that oil, hope this is helpful,

Dec 13, 2009 | 1999 Mercury Sable

1 Answer

I need to know where the thermostat housing is so i can replace...


It is hard to say definitely without a make, model and year of car. But I would follow the large radiator hose to the engine block. If the hose connects to a cast iron elbow with two bolts holding it to the block smile you most likely found it. Drain the radiator fluid, unbolt the two bolts and you should see the thermostat. Clean the old gasket of the block and elbow and bolt the elbow and new thermostat and gasket to the block to the manufactures torque specs. I would buy some radiator flush if it has not been flushes for several years. Fill the radiator with the correct ratio of coolant and water replace the cap then run the engine for 15 minutes and look for leaks or listen for hissing from the leaks.

Jul 17, 2009 | 1995 Honda Accord

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