Question about 1991 Chevrolet S-10 Blazer

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Antifreeze leak on the front of the block passenger side

I replaced the water pump soon after we bought the s-10 blazer used and the haynes manual does not even come close to the right configuration for the 4.3 v 6 now i have a leak on the front of the block and can't get the a/c unit off to see behind it to see where it is leaking. Jeff

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  • Steven Brock May 11, 2010

    So what do you want? Info on taking ac off? What the possibilties could be for the leak?

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  • 341 Answers

I had same problem missed a very small piece of gasket on block had to take back apart make sure its very clean

Posted on Oct 21, 2008

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1997 CHEVYS10 PICKUP what can cause antifreeze to leak underneath truck ?


check oil first. If it looks like a milk shake, its most likely head gaskets.
(worst case besides a cracked head/block)
could be many things.
Check upper & lower radiator hose connections. (upper to water neck...lower to water pump)
Check the heater hoses on the passenger side going from intake & water pump into the firewall. (should be a 3/8" size hose)
Those are a more common leak on the GM vehicles)

if you hear a knocking or fast tapping noise, it could be the bearing in the water pump, and you could be leaking from the water pump flange at the front of your motor.

Hope this helps.

If you find the problem and need advice, let me know.
eric

Dec 06, 2012 | 1997 Chevrolet S-10 Pickup

1 Answer

2004 chevy trailblazer leak n antifreeze from behind fan


the fan you are referring to is inside the trailblazer on the passenger side behind dash near floor wall? If this is the case it is the heater core and needs to be replaced by a professional. If is is under the hood in the engine compartment it is the water pump in need of replacement? thanks good luck on the heater core..

Aug 28, 2012 | 2004 Chevrolet Blazer

1 Answer

I am leaking antifreeze under my blazer onto the ground but not inside the vehicle. My blazer does not overheat, my heat will work sometimes while driving but as soon as I stop or slow down it blows cold....


you need to figure out where the coolant is leaking from. Some common areas are

the water pump in which case you would be able to remove the splash shield from under the front of the vehicle and using a flash light be able to see coolant coming out of the weep hole of the water pump.

The intake gaskets. Look in the corner of the intake valley where the head and lower intake meet right under the a/c compressor. If you see coolant its leaking and needs to be replaced.

The radiator, you'll be looking for wet spots on the side tanks of the radiator. Loose upper and lower radiator hoses could also cause this.

If you can't find anything visually you'll need to bring it in and have it pressure tested.

Nov 23, 2010 | 2001 Chevrolet Blazer

1 Answer

I have a problem with a coolant leak on my 2000 Chevy Blazer. It's coming from the left side of the engine, about mid to lower engine. I can't see where the leak is coming from due to the leak bouncing off...


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

Jan 18, 2010 | 2000 Chevrolet Blazer

2 Answers

1997 Cevrolet Cavalier 2.4 liter engine leaks antifreeze


If it is the water pump it will have a rad hose attached to it. There is supposed to be a small hole in the bottom of the water pump. When it starts leaking, it's time to replace the pump. You can do it yourself. A few wrenches and a couple hours is all you need. If you are unsure pick up a Haynes manual for your car when you get the new pump.

Jul 05, 2009 | 1997 Chevrolet Cavalier

1 Answer

Antifreeze/coolant leaking from under passenger side dash


If it's your heater core, unless you're a mechanic you probably should get professional help. The heater core is located on the firewall and many parts need to be replaced to get to it. Do you see water on the floor inside the vehicle, Many times a heater core will leak inside.

Mar 12, 2009 | 1993 Chevrolet S-10 Blazer

2 Answers

Water leak on the passenger side


were at on the passenger side? If its in the front floorboard,passengers side.the heater core may be leaking antifreeze.Also the a/c drain it also located in the same area.check your antifreeze,if not low,drive for a few miles with a/c on,stop on dry level place.there should be water dripping under passengers front.that is were the a/c drain is supposed to be.

Aug 12, 2008 | 1999 Plymouth Voyager

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