Mystery milkshake after pan gasket change

[89Suburban]

Looks like I found the problem.Driver side water pump connection was leaking.You can see in the picture how it's cleaned the front of the timing chain cover.

I must not have got the pan gasket on correctly And coolant leaked into whatever gap there might be.

Still seems odd.There was no sign of coolant leak but it seems the picture shows It might have been a pretty steady flow.

Once I Pull the motor I'll inspect that pan gasket and see where I screwed up.

Seems like the only way coolant could have got into that pan.

I will do a follow up once I get more information.

Anybody have any thoughts?

Thanks

I don't see how that is possible. But these days nothing surprises me anymore haha

 

[Instigator01]

What are we looking at here? Broken water pump bolt?

No, all the bolts came out intact. Appears it's a gasket failure.

 

[Instigator01]

I don't see how that is possible. But these days nothing surprises me anymore haha

It's all I can figure and there's clearly a leak on the driver side connection point on the water pump.

The passenger side connection is completely covered in Grease, whereas the driver's side has been washed.Clean from the leak.

The only other thought I have is.The coolant is leaking behind the timing chain cover into the pan.

I will know more once I get it pulled and tore apart.

 

[89Suburban]

It's all I can figure and there's clearly a leak on the driver side connection point on the water pump.

The passenger side connection is completely covered in Grease, whereas the driver's side has been washed.Clean from the leak.

The only other thought I have is.The coolant is leaking behind the timing chain cover into the pan.

I will know more once I get it pulled and tore apart.

I don't think that can be happening either but I wish you the best. Are you loosing coolant in the overflow tank? Like a measurable amount?

 

[Instigator01]

I don't think that can be happening either but I wish you the best. Are you loosing coolant in the overflow tank? Like a measurable amount?

Overflow tank was dry but the top hose on the radiator spilled fluid when I disconnected it..

Drained the coolant and it had no oil in it.

That leak is the only evidence I have of water intrusion into the pan. The only other thing I could figure is.The oil cooler had ruptured and filled the oil cooler lines with coolant.But that doesn't appear to be the case.

There Was no coolant in the oil until I changed that pan gasket.

 

[Mudsport96]

I would pressure test the oil cooler in the radiator before starting the new engine. I know it seems coincidence that it could have let go right after fixing the oil oring. But that really means even if you did not do that work, it was going to let go the next time you went driving.

 

[Instigator01]

I would pressure test the oil cooler in the radiator before starting the new engine. I know it seems coincidence that it could have let go right after fixing the oil oring. But that really means even if you did not do that work, it was going to let go the next time you went driving.

I.
Would have thought if there was a corruption in the oil cooler that the oil would also be mixed with the coolant.

 

[89Suburban]

Do you have a picture of the contaminated oil pan we can look at?

 

[Instigator01]

Do you have a picture of the contaminated oil pan we can look at?

No it's still on the motor.

Little good news for me though, I was just able to loosen all three torque converter bolts.

The first one was rough but then the next two went well.

All the YouTube videos show using a socket and everybody rounds off those bolts. But I've never seen one. YouTube video where they actually used a hex key socket, which is what I did. I didn't even have to hold the flywheel, still. Feeling lucky now!

I'm gonna call it a day for now and yank that motor tomorrow

Thanks everyone

 

[89Suburban]

No it's still on the motor.

Little good news for me though, I was just able to loosen all three torque converter bolts.

The first one was rough but then the next two went well.

All the YouTube videos show using a socket and everybody rounds off those bolts. But I've never seen one. YouTube video where they actually used a hex key socket, which is what I did. I didn't even have to hold the flywheel, still. Feeling lucky now!

I'm gonna call it a day for now and yank that motor tomorrow

Thanks everyone

Why do you have to unbolt the converter?