So, I finally filled my radiator with enough coolant to fill it up so I could run it and get the air bubbles out.

Well, it started leaking out of the back of the motor somewhere once I get the fluid level to the top of the radiator. I'm not running the motor so it's not even pressurized. So I must have a gaping hole somewhere.

I can't find where it's coming from. But once I put coolant in about 5 seconds later it comes rushing out and down the passenger side header and down the front of the transmission. I thought it might be the heater core lines, but they feel dry, but are in that area. I thought maybe once the radiator fill line went high enough it might be leaking there. The car's nose is higher than the rear, so the whole car is at at angle. I double-checked the steam lines when I re-installed the motor. I don't think it's them. But I can't feel back there to see. I may have to pull the intake.

Any other sources of coolant on the backside of the motor? The heads and block look dry when I look from under the car. But since it's at an angle, it could be leaking form anywhere and pooling at the back of the motor. But the rest of the side and underside of the motor look dry.

New radiator, new hoses from radiator and steam line and waterpump, new waterpump, and new lines going into the overflow tank.

 

Jake, you know that port in the heads that is used to install the temperature sensor on the driver side head? You probably put a plug or bolt in the passenger side head when you installed it. Possibly that is leaking?

 

You know what. I'll have to check that. Since they were new heads I may not have done that. I figured it as something like that ha.

 

I hope it is. It'll be about an inch from the very back. Good luck

 

That was it. Except it's hard to get to with the headers in the way.

At least I know what it is. I'll work on it tonight when it's not 115.

 

Glad it was easy!

 

It's easier to get to that plug from under the car.

 

Had same thing happen to me.

 

I got it from the top. I just unplugged a few wire from the coil packs and could reach it.

Car is back on my ramps now from the huge jack stands I had it on - getting it down was terrifying lol.

I need to adjust the torque arm, tighten up the sways, and figure out what to do with a rear cover bolt that I sheared off. Tried to easy-out it tonight and it didn't work. So I need to drill it and tap. So right now, I have a 9-bolt... lol.

Then little things like topping off trans fluid, coolant, and A/C and I'll be ready for EPS on Tuesday. I just hope I can get the rearend sorted by then.