Coolant leak

[Eric Wettschreck]

Late 90's Bonniville, 3800 motor.

Its not mine, it's a friends of mine, and it's leaking coolant.

For the life of both of us, we can't see a leak.

Just wondering if anyone of yous GM guys know of any history/trends of coolant leaks on these motors? In the morning there is a small puddle underneath the car but for the life of us, we cant find a leak.

Any suggestions on where to start lookin?

[CAMAN]

What area of the car is it under?

[Scott K]

I believe on the passenger side of the car, belt side of the engine, there is a 90 degree elbow that tends to leak on these.

[Eric Wettschreck]

What area of the car is it under?

It seems like passenger side but honestly, all we see is a small puddle. Neither of us can find a wet spot under the hood.

I thought it might have been a water pump thing so I wiped everything off clean, and layed underneath it to watch. I thought it may have been following a hose but I'm not sure. We don't have a pressure test kit so we're just in the driveway trying to find it. It's sneaky.

[Eric Wettschreck]

I believe on the passenger side of the car, belt side of the engine, there is a 90 degree elbow that tends to leak on these.

We'll check it out. Thanks!!!!

[Jeremy airjer W]

The 90’s 3.8 should have a straight nipple coming out of the lower intake right above the water pump. They are really common failures.

[Eric Wettschreck]

The 90’s 3.8 should have a straight nipple coming out of the lower intake right above the water pump. They are really common failures.

That's what it was.

Thanks for the tips fellas.