i have a 2000 chevy blazer (4.3 engine, 4wd). recently i had a severe coolant leak start from the upper driver side of the engine behind what i believe to be the AC compressor? but i cant seem to find exactly where the leak is...i have checked all hoses after letting it leak for a bit to see if they were wet but they are not, it seems way to excessive to be the intake manifold gasket, to high up on the engine to be the water pump please help im completely lost in this, and i really dont want to start ripping things apart that dont have to be.


PS. some photos of the general area are attached

 

Have you checked the thermostat housing?
BTW the A/C compressor is in the 3rd pic just right of center & 4th pic upper left corner.

 

i have and it seems intact (thats the semi rusted metal pipe attached to the block in picture #4?) i can get a video of it if that will help?

 

The pipe (bolted to the intake infront of the throttle body) with the hose that goes behind the A/C compressor towards the drivers door hinge then turns & connects to the radiator.
One of the 2 bolts may be loose that hold it down.
I'd wipe everything dry then let it idle up to temp & start wiping things down with a dry paper towel until I find where the leak is.

 

thats another issue im having it dosnt have to idle up to temp it starts leaking as soon as i start the truck. ill post a short video clip to show you.

VID_00000008.mp4 video by exploitu - Photobucket

 

I'd lean towards the intake manifiold gasket if the thermostat housing is dry as well as the upper rad hose.
Maybe try getting a mechanics mirror on a flexable stick, look around & try to spot where it's coming from.

 

ok will do. thanks a lot for helping me troubleshoot rotti i very much appreciate the help

 

Not at all, we all like another opinion or different view at things.
Oh yeah have a flashlight handy. Trust me there are lots of small corners were you'll need it to get a good look. Try shining it on the mirror &/or where you're looking.
Hope it helps.

 

I would clean the area around the suspect leak and check again. All that dirt and dried antifreeze gunk may be hiding the source

Joe

 

I would take it to the car wash & wash it off good. Check any & all hose clamps. On mine I had the upper radiator hose leaking because of a rust build up in the metal housing.
But my guess is as above most likely a lower manifold gasket leak. The ones I have seen leaking either leak in the front or rear corners. If it is that coolant could be leaking into the valley area. That is where thew balance shaft is.