johnlv6

iTrader: (3)

I've searched around and I'm just throwing in the towel here...I've got a '99 LS1 with 96k. This evening I discovered a small amount of what appeared to be engine oil on the coolant dipstick. There is, however, no coolant in the engine oil (as I would expect if it were a head gasket leak).

If there is indeed engine oil in the coolant, but no coolant in the engine oil, what is leaking? I'm going to have the coolant flushed and the engine pressure tested tomorrow. I'm hoping that this is just a result of the coolant needing to be changed BADLY.

Zaxz28

As far as I know it can go either way or both ways depending on where the leak is....Do you have a power steering cooler on the car...

johnlv6

iTrader: (3)

Ah...bingo. I'm pretty sure that '99's have a power steering cooler. The power steering fluid has a slow leak. I bet that's where it came from...not the engine. I'll address that first.

Zaxz28

Give it a shot and let us know....

johnlv6

iTrader: (3)

Yup. I feel stupid for not thinking of that on my own, but that is actually a far more likely cause (in my case). The engine runs GREAT...I find it hard to believe that it would be the culprit.

Zaxz28

It's human nature to think the worst, which is why it's nice to have an objective person lookin in from the outside.

trans_am7935

iTrader: (15)

you said 99 LS1's have a power steering cooler, do you know where it is?

orangeapeel

iTrader: (18)

Its right behind your radiator. The metal section in the middle of your radiator hose.

johnlv6

iTrader: (3)

Thanks for the info. I'll post up after the dealer takes a peek at it.