ITS A 95 3.0 Liter and Im dripping coolant on the passenger side front of the engine. Ive crawled all over this thing and there is just too much stuff in the way to find the source. There is no coolant in the oil, oil in the coolant, runs great, plugs are clean and no overheating. Is there a coolant line or freeze plug low on the front of the head or high on the block in that area?

With no history of overheating I cant imagine its a cracked block or head, and since gaskets normally fail at their narrowest Im baffled. Its loosing about a pint a day and only when its cool. Its not radiator or hoses either.

its my daily driver so I cant just tear the accesories off it without a good estimate for down time.

 

http://personal.utulsa.edu/~nathan-b...05descript.pdf

thermostat?? water pump. all are in the front as well. some pictures would help

 

Thanks for the reply. I cannot get up in there to take a picture. The thermostat is on the driver's side of the block, this leak is near the front of the passenger's side, high up like under the exhaust manifold. Its just that the PS pump, AC compressor and all the other stuff is in the way, even from the bottom view. Im just wondering if there are any external coolant lines hidden in the area or freeze plugs in the head under the exhaust manifold. There is NO water going through the combustion system, no smoke in the exhaust or mixed oil and water so Im hoping its external not a head gasket.

 

According to the FSM the closest coolant component to the passenger side is the water pump. no hoses or anything else. It is very possible, that you have an external head gasket leak. It will only get worse. Start saving your pennies for the repair, and start doing your research of you plan to do the repair yourself. If you do the repair, I would recommend using engnbldr for the gasket set. it is quality stuff and a very good price.
http://www.engnbldr.com/toyota-3.0-v-6.html

 

Clean up the engine area and enter some UV dye and pressure test, should tell you where it's coming from.

 

just a crazy thought. check your lines that run from your washer fluid into your hood. could be dripping down from the top.

 

^-- This general area..?

Unless its leaking from the cylinder head gasket there are not a lot of items in this area...

Is the leak higher up...?

Does it seem to leak from the timing cover area...?

Its possible that one of the multiple coolant hoses/pipes in the valley of the engine have a slight leak and the coolant is making its way down the center of the block and down along the sides of the engine....

Intake manifold gaskets...

Water pump...

Timing idler pulley coolant passage...

There are 2 plugs at the front of each cylinder head as seen in picture.

 

Well of course it was the worst, head gasket leak hiding behind the ac compressor. I found a good shop thats doing a head rebuild, gaskets, crank and cam seals, water pump, timing belt and tensioner, pcv and thermostat for $1300 so im feeling hurt but not dying from the pain. The parts are speced to by aisin or oem.