4RunnerN00B

Hey guys,

I have a small coolant leak that appears to be coming from the air conditioner pump. From what I can see the bottom of the pump seems to be where it starts from, and then it just trickles down to the street. I dont have any Engine troubles, or hard starts, I have 150,500 miles on my 3.0. If I take pictures maybe you can get a better feel for what to diagnose. Any help would be great.
No white crap in my oil cap or anything. No smoke on startup also.

Thanks guys

n4ynu1010

Well I think it is safe to say that the A/C Compressor is not leaking coolant , that said you will just have to follow the trail back the the source , I would say the most common would be the water pump and possibly the fan is blowing the coolant along the timing cover and it is coming down on your A/C compressor , it could also be a freeze plug leaking above the compressor on the passenger side head as well as a longshot that the head gasket may be going bad and you have a leak from the cooling jacket to the outside of the head .
There is also a coolant tube that crosses from the frt to the back of the motor under the upper intake that "might be leaking and running down and showing itself at the compressor , alot of "maybe's" , if it were me I guess I might try a pressure test on the coolant system with the motor not running and try to find from there or pull the shroud , radiator , fan and then the timing cover to get a "good" look at the pump and the freeze plugs as well as that corner of the head .
Outside of that just get a powerful light and follow the coolant trail up and you will find it , just remember that with the fan and other factors that the leak may not be straight up from there , it could be running along covers and such before it actually goes down to drip .