Is there a repair for a 2000 chevy blazer engine block crack? The crack is leaking coolant from around the outside of the engine.

How to Fix a Cracked Engine Block - BlueDevil Products

www.gobluedevil.com/blog/how-to-fix-a-cracked-engine-block/

Aug 9, 2015 - cracked engine block You may find out that your engine block is crack a few different ways. First you may notice coolant leaking externally.

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On the block ( the bottom part of the motor ) below the intake manifold

Theres no such thing as a diagram, here are the draining instructions, hope this helps...

1-Place a large drain pan beneath the radiator drain plug. The drain plug is located on the passenger side at the very bottom of the radiator on the engine side.

2-Make sure the engine is cool. Open the hood of the truck and remove the radiator cap.

3-Loosen the drain plug. On the 2000 Blazer, the drain plug is a wing-nut type of plug. Twist it with your fingers until the coolant begins to drain.

*To flush the block, once you have drained the radiator, run the engine for a bit untill the temp gauge goes up to normal, then the coolant will have been evacuated from the block. DO NOT leave the engine on, once it reaches normal temp, (this will happen quick) turn off right away, otherwise you'll be forking out a few hundred $$$ to fix the worped heads.
4-Tighten the drain plug with your fingers once the coolant has drained fully from the radiator. Remove the drain pan and dispose of the used coolant properly.
Some service stations will take and recycle your used coolant.
Hope this helps...

Read more: How to Drain a Radiator From a 2000 Chevy Blazer ' eHow.com http://www.ehow.com/how_6357264_drain-radiator-2000-chevy-blazer.html#ixzz1VS4RBufX

Basically, you don't "fix" cracked blocks....you replace them.

Now, having said that, is this cracked block causing a loss of coolant?

If this is the problem, there are some block sealers on the market that do a commendable job. Thing is, if it works....great! If it doesn't...well, you didn't spend an arm and a leg for the sealer.

A product I've used with some success is Head Gasket Repair and Block Seal by Bar's Leaks. It'll run around $13.00 for a 20 oz. bottle. Check www.barsleaks.com for all their products.

Good luck!

The most likely cause is the intake manifold gasket. Chevy has a problem with this there isn't enough bolts folding it down and there all in the corners two in each and if the engine over heats one time it will start to leak. Although it could be a head gasket or a cracked block but you would see white smoke comeing from the tail pipe if coolant were getting into the cylinders. The gasket isn't that much 75 dollars for everything you would need for parts and sealers but its a hard job to do correctly it would take a good mechinac all day to do it. So you have to figure at least 1000 dollars if you had a shop do. This is the 4.3 right make sure the collant system is cleaned and all issues with it are fixed that is what causes this to happen and get a warrenty with it. good luck with it i have the same engine

Ihave a 96 s10 lt blazer First of all the steering coloum is now where near the engine block and the bracket you mention is for the throttle cable and the cruise control cable and has no gasket for any kind of a seal with the intake manifold. The 4.3 and most chevy engines have a problem with the intake manifold gaskets if you are over heating then likely the intake manifold gasket is leaking you should check your engine oil for antifreeze that will look like a fomey white yellowey residue and also check the radiator for engine oil floating on the top under the radiator cap. This is a big problem with chevy you can't let espesecly the 4.3 ever over heat.There is olny 8 bolts that hold the manifold to the block and there all in the four corners nun in the middle Y ou can save the engine if you fix it now but it is the intake manifold gasket that is leaking

The freeze plugs are normally located on the side of the engine block.Make sure first thats what the problem is.This link will help you with your problem.Please rate my assistance towards your problem thanks.
http://www.autozone.com/autozone/repairinfo/common/repairInfoMain.jsp?targetPage=productsHowToInspect&leftNavPage=productsHowTo&pageId=%090900c152802140b9&subtitle=replace

you could have a expansion plug on the left side of the engine block leaking antifreeze,if your blazer is a 4x4 remove the skid plate under the front bumper and you should be able to see where its leaking from,a water pump will be a steady drip while its running usually but a expansion plug will pour out very fast

If the engine is the same as the 2002 Impala 3.8L engine, the problem is most likely cracked connectors where the coolant enters the engine block. There are two L-shaped plastic connectors that connect the coolant lines through the metal block attached to the tensioner arm to the engine block. Common problem and parts are available from the dealer for under $20, but takes several hours of disassembling and specific torque specs. Just replaced mine over the summer.

Firsdt check the radiator cap thats it tight , then check for any anti freeze visible on the engine, then check under the car for any leaks. Is the smell of anti freeze inside the car ? , check the heater core you may have a leak there. the newer heater cores are aluminum and certain anti freezes, are extra acidic , which causes the anti freeze to eat at the heater core causing leaks, it maybe be a pin hole leak in the heater core ,causing the smell.