![]() Next, remove the valve covers and plenum. This is also a good time to inspect the trans cooler lines for leaks. Check and replace the lower radiator hose if needed. Disconnect the battery, remove the air filter assembly, intake plenum, upper engine wiring harness, cooling fans, and upper radiator hose. Remove the upper radiator support, and drain the coolant. I will not outline everything word for word, so if you need steps on how to remove a specific component, it is all in the service manual, available here, or I can email you a copy if you shoot me a PM. Here are the first steps of replacing the water pump. These surge tanks will crack right near where the words "MIN" and "MAX" are embossed on the sides: On this car, all that was good, and someone has recently replaced the water outlet: Of course, check other places as well, including the water outlet, and the surge tank for cracks/leaks, and all the hoses. Your oil pan will need to be dropped, the engine flushed out, and the rod/main bearings inspected and or replaced, or replacement of the engine with a rebuilt unit. If this is the case with your engine, it is likely that you will need more than just a water pump/timing chain replacement. These also have the potential to leak into the oil, and cause the oil to assume a "milkshake" appearance. If it leaks there, water will run out of the valley at the back of the engine and drip down around the transmission. There are two weep holes on a 2.7, one is pictured, the other is below the lower intake manifold. It began overheating randomly, and upon inspection I found water leaking from the water pump weep hole, just below the thermostat housing. The car is a 2003 Intrepid with 73K miles. This is not a job for the faint-of-heart, nor a job for those with no automotive knowledge. Now, here is what is involved and how to replace a water pump on a 2.7. I am posting this thread as a supplement to my "info for 2.7 owners" thread above, as this job is part of 2.7 ownership, guaranteed.
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