Water is leakin behind the motor under the oil pan i replaced the water pump and that was not it
SOURCE: water leaking behind oil pan on a 95 chevy camaro-3.4L
If I rember correctly, there are two freeze plugs in the back of the block, behind the flywheel. They generally dont go bad often because they are pretty much protected. As that angelo guy said, more likely a hose or rear of intake gasket, but you have to look, from here I can't see it!!!
SOURCE: coolant leak on 2004 grand cherokee 4.0
might be the thermostat housing to as its right above the water pump. the best bet would be to pressure test the cooling system and inspect to see where its coming from
Since there is way more pressure from the oil pump than there is pressure in the cooling system oil can leak into the cooling system and coolant not leak back due to the pressure differential.It is very easy to have a head gasket leaking and not see where the leak was with a visual inspection after disassembly. I would inspect the head for cracks and if it is ok clean the block and head and have the head checked for warpage and if it is ok replace the head gasket and you should be good to go.
SOURCE: im losing anti freeze i looked under the car and
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.
SOURCE: oil pump replacement
all you really have to do is drop the exhaust headers in order to get the oil pan out, are you sure it is the pump though, experience sayd the pressure switch is far more likely to cause a lack of oil pressure that the actual pump.
The best way is to pull the motor out. The timing chain cover needs to come off of the front of the motor (behind the water pump) and this can be done with the motor in the car. The problem comes when you try to put the cover back on. There is a seal that fits in a groove on the bottom of the timing cover. The seal will not let the cover go back into place without damaging the seal. The oil pan needs to be dropped down and then the timing cover goes into place. The oil pan goes on after the timing cover is in place. Any other way will result in premature failure of the timing cover to oil pan seal. If you have enough room under the car and can remove the oil pan, that will work also. I hope this helps.
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