Re: Im leaking coolint out of bottom of motor. is it an...
Oil coolers have oil passing thru them not anti-freese. If its coming out of engine and not radiator it could be a bad frost plug, a leaking head gasket or a leaking intake manifold gasket.
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didnt specify vehicle --generic answer --start with older vehicles leaking from top check valve cover --towards bottom rear oil seal -oil filter ,housing-- bottom oil pan //newer only difference would be oil pressure sensor and oil cooler lines
you need to look at the tranny cooler located in radiator that's the only way tranny fluid can get out but how its crossing over to motor oil im not sure unless you also have a motor oil cooler in the radiator.and that will cause tranny problems ,don't try to drive till you resolve these issues., my other thought is oil is leaking out back of motor and mixing with leaking tranny fluid, try draining tranny first to see if motor oil is really in tranny.
Sounds like the oil cooler for the hydraulic suspension,and steering.I had the same problem with mine.I took out the oil cooler...found the leak,and braized it.There are onlt 4 bolts,and 2 hose clamps to remove it.
Purchase a 5/8 to 3/4 hose union and connect the two heater hoses to it. Just remove the two hoses from the heater core to do this. You will not have heat this way although the leak will be fixed
The union can be purchased at most NAPA Auto parts Stores
Mostly likely it's coming from the oil cooler lines from the motor to the radiator. My friend's Aurora has the same leak, we replaced the oil pressure sending unit, which is close by the lines, but the lines, where the compressed part of the fitting was leaking there. The oil cooler lines will have to be replaced.
Just plug one port on the engine oil cooler, and use a hand vacuum pump to put the cooler under vacuum, see if it holds, if the vacuum leaks out you hahe a leak. In the event you do not have/ can not get a vacuum pump, you can plug one port on the cooler, and put about 15 psi of compressed air in it, submerge the entire radiator in water, with the cap and hose ports open if you see any bubbles the cooler is leaking.
Oil generally will get into the coolant due to a headgasket leaking, or a cracked head.
You'll need to pressurize both systems (OIl & Cooling) to try & determine where the leak is coming from. .
Antifreeze in the oil can cause the pistons to sieze in the cylinders and if you've got oil in the anti-freeze, you more than likely have anti-freeze in the oil, or soon will.
The passenger right side of the car doesn't have any flanges for cooling system, if that's correct then your radiator has a leak or puncture.
The driver side of vehicle has both the in and out flanges for the radiator. Very common to see leak at the drain valve leaking (not closed tightly). In the same area would be bottom flange of radiator which the composite flange is degrading and causing the leak.
The middle part of the bottom engine compartment is where your oil/coolant cooler assembly just above the oil filter. A loose oil filter could be the cause 95% of the time and 5% would be a bad o-ring from the oil cooler to the oil filter flange.
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