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Radiater leaking from bottom - 2000 Chevrolet Blazer

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Most likely it would be the front corner of your intake manifold.It looks like its comin from the bottom but it usually comes out under neath air conditioning pulley just above the water pump

Posted on Apr 30, 2013


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Antifreeze is leaking from the radiator? hit something, the honeycomb grill at the bottom pushed a small tube into what looks like the bottom of the radiator. Coolant is leaking. The tube looks like p

Get the coolant pressure tested, its definitely leaking coolant. You will need to get the coolant running line.

Pressure test will help you to know from where exactly coolant/refrigerant is getting leaked.


For complete step by step troubleshooting i suggest you to go through the help link mentioned below :----
Click the link below: -----


These will help.

Dec 25, 2012 | 2008 Land Rover LR2

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2003 ford explorer has leak at the bottom of the radiator between radiator and cover

Tank is plastic,warps with age. need to replace. I am 75% sure.

May 14, 2017 | 2003 Ford Explorer

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I have a radiator leak on the bottom of the radiator of my 2000 Chevrolet z71 1500. I don't know where it is coming from exactly. It is a so drip and I can see green coolant on the ground.

Coolant leaks can sometimes be difficult to locate the exact origin of the leak. That is why proffessional technicians use pressure testers, bright flashlights, inspection mirrors, and in some cases even borescopes to locate the cause.

With that said, I would say that if you have a "radiator leak" and it is "on the bottom of [your] radiator" my first guess is that it is coming from the radiator itself....check the area of the radiator where the plastic tanks are crimped to the cooling tubes (main radiator core). Sometimes the fittings in the tanks leak where the transmission cooler lines connect.

I have also seen leaking radiator caps misdiagnosed for a leaking radiator....Sometimes they will leak and the antifreeze will run along the sides of the radiator and "mimick" a radiator tank leak. Remember, the coolant almost always travels DOWN and REARWARD. Sometimes it goes way to the left or the right, but it still goes down and back from there.

A bright flashlight and an inspection mirror will verify most leaks. You may also want to detach the fan shroud and move it back for better inspection of the radiator. - start where you can see the coolant and follow the trail upward....

May 13, 2012 | 1999 Chevrolet K1500

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Check to see if your water pump is leaking, there is nothing else on the motor that can leak coolant. Check the radiator core also. You can check that by looking at the bottom of the radiator and seeing of its wet. If so, check the sides of the fins, the core will go if the radiator is pretty old and if the truck has been sitting for quite a while. If your getting no leak there, its probably your water pump. Just run your finger around and see if there is any wetness. If that also is not where the leak is, check the water neck. Its where the top radiator hose connects to the top of the intake at. That may be it too. Coolant can run down the motor and fool you of where it actually is leaking from. There is only one more place that you can check other then the ones I I have stated, check the bottom of the heads just below the valve covers and check there.
Hope that helps!

Dec 06, 2009 | 1990 Ford F150

1 Answer

Leak undeneath upper radiator hose

The radiator on your Focus is mostly plastic on the top and bottom, and the middle section is aluminum/ alloy. If you examine the radiator, and are sure it isn't leaking from the hose connection, then the radiator will need repaired. sometimes, small leaks in the middle , metal section are sealed just by using some radiator stop leak in your engine's coolant. A radiator shop can replace the top or bottom plastic piece on your radiator too, and often it is a good idea to check the price of an entire radiator at your local auto parts store, as sometimes you can buy a radiator for less than the cost to repair your old one.

Nov 06, 2009 | 2003 Ford Focus

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Oil is leaking by the bottom of the radiator

yes oil is cooled by radiator. hoses leaking are a common problem.can be difficult to change

Oct 07, 2009 | 1995 Chevrolet Astro

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Radiator hose 93 chevrolet cavalier not sure if it is upper or lowerthe one cracked comes out of bottom of radiator so i assume it is the lower

depending on how many miles you have on the car i would look at the lower hose first; the other common problem on a 93 cav would be the lower radiator neck or radiator leak; the lower hose has less pressure on it than the upper so sometimes finding the leak can be tricky. with the engine off and cold squeeze the lower hose by the radiator to see if any fluid comes out. otherwise you would have to pressurize the system to find the leak

Sep 16, 2009 | 1993 Chevrolet Cavalier

1 Answer

2003 volkswagon beetle radiater leak

Hi, you 1st have to determine the exact location of the leak, which may involve removal of the radiator to repair anyway. How bad is the leak? How often do u have to add coolant, and how much? If it's a minor leak, you can purchase 'radiator stop leak' from a parts store, that will seal it.
so, try the stop leak if it's a minor leak, you can have it removed and repaired, or purchase a new one. Having said all that, the leak could be a hose leaking, but running down and dripping off the radiator making it look like a radiator leak. With engine warm but not running, use a small mirror to hunt around to see if u can find the source of the leak. Look closely under the radiator hoses, as that could be where the leak is. It would be from the radiator bottom and up, any further back and it wouldn't show up at the bottom of the radiator, so no need to check back any further. Let me know what u find,good luck countrycurt0

Oct 03, 2008 | 2003 Volkswagen Beetle TDI

1 Answer

Oil Leak

The oil leak at bottom of radiator could be oil cooler and/or supply hose. Try check closely for wettest area .
The other leak could be thermostat cover, it only uses a sealing ring and is prone to leaking after time.

Jun 25, 2008 | 1997 Saab 9000

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