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Coolant seems to be leaking from intake area behind ac compressor. Is there a spot that would leak

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If this is a chevy vortect it is the intake manifold gaskets upper and lower, the replacements are made of better materials.

Posted on Jul 10, 2010

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1998 for expedition 4.6 engine leaking water beteen the back of the motor and the transmission


Not very likely, check the coolant passage between the cylinder heads. (The front part of the intake, right behind the alternator) That piece which is part of the intake manifold has been a source of coolant leaks for many vehicles like yours. The alternator is pretty easy to remove... Disconnect the negative battery cable, turn the belt tensoner to remove the belt from the alternator, take out the two long 10mm bolts under the alternator and the three on top. I would check for leaks there because it was a common problem area, coolant would leak behind the alternator, fill the space under the intake manifold, and leak down right where the transmission bell housing is. There are expansion plugs, and allen plugs on the back of the cylinder heads, but they rarely leak.

Jan 24, 2012 | 1998 Ford Expedition

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1999 olds alero leaking anti freeze, looks like the leak is coming from between the oil pan and transmission pan. had transmission changed leak seemed to start after that and has gotton worse. Does not...


CHECK HEATER PIPE OR HEATER HOSE AND CHECK COOLANT INLET PIPE FROM THE THERMOSTAT HOUSING. CHECK HEATER OUTLET HOSE FROM THE RADIATOR OUTLET PIPE.SOUND LIKE COOLANT LEAK COMING OFF TOP OF ENGINE.

Aug 13, 2011 | 1999 Oldsmobile Alero

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I have a water leak. the hoses all seem good as does the "weep hole" on the water pump. The oil and trans fluid look normal and the car runs fine. The only thing I see is below the alternator...


Not all water pumps leak from the weep hole, if the water pump casket becomes worn then it will leak from behind the water pump. You can also have a leak coming from the thermastat housing. To find out exactly have a pressure test performed on your car.

Feb 28, 2011 | 2002 Chevrolet Impala

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Water pump 2004 suburban, coolant has a slow leak. Had the coolant bottle pressure tested and it was OK. System pressure tested and it was not holding pressure but the mechanic could not tell if it was...


Possible leak areas waterpump, heater core, intake manifold gasket, radiator or hoses. Waterpumps have what they call "weep holes" which is an early warning system to prevent major damage when pump fails. The weep hole needs to be inspected from below and is usual behind waterpump pulley. If it's your heater core, you should smell anti freeze inside truck and in most cases windshield will fog up. Radiator could be pin hole to front side of radiator (which is buried behind AC condenser & grill) and if it was head gasket, intake manifold symptoms would be coolant in oil OR lots of white smoke from exhaust. Try parking it on a clean dry surface and see if you can narrow down area where leak is coming from.

Feb 25, 2011 | 2004 Chevrolet Suburban

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I HAVE ANITFREEZE LEAKS FROM MY 2000 CHEVY S10 BLAZER. IT'S HARD TO TELL BUT THE LEAK SEEMS TO BE COMING FROM UNDER THE MOTOR RATHER THAN FROM THE RADIATOR OR ANY HOSE I CAN SEE.


a common V6 failure is the intake manifold gasket. coolant will usually leak behind the water pump on the drivers side, however it can leak at other locations on the intake manifold gasket.

coolant leaks from other areas include the heater core, hoses, expansion plugs, trans cooler, and coolant overflow tank.

Jan 03, 2011 | 2000 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 99 Blazer 4X4 LS 4.3L Overheating- coolant leak.


no, the lower intake is leaking(common fault with 4.3)will have to get lower intake gasket changed,there is an up dated gasket for ths from FEL PRO

Oct 05, 2009 | 1999 Chevrolet Blazer

3 Answers

1994 dodge ram coolant leak


The bypass hose from the waterpump to the intake is leaking. It is about four inches long and is directly under the ac compressor and bracket.

Jun 09, 2009 | 1999 Dodge Ram

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