[rosenbarn]

I really hope somebody can help me out with this one. Getting ready to take the car to the shop tomorrow evening, and I think I'm getting ripped off. Here's the problem. I have a 97 Chevrolet Lumina 110,000+ miles on it. No problems. Normal driving, come to a stop, get off the highway, steam rolls out under the hood. No overheating on the guage, or bubbling over in the radiator or resevoir. Park the car, I see small drips under the car appearantly coming from somewhere under the top hose, but can't really see for sure. Antifreeze was a little low. Add distilled water, park, same thing going home. So I flush the radiator, bleed the valves, refill, (I didn't check the thermostat--gets plenty of heat and shuts off alright). I let it sit in park for 30 minutes, and again, no overheating, no drips, no problem. Get on the highway and it's the same old thing. This time I've lost quite a bit of coolant, and it seems to come out from somewhere on the driver side around the top of the motor. A guy from the shop said it sounds like the intake manifold or head gasket. BUT there's no oil or air bubbling in the resevoir or any appearance of water or sludge in the oil case. Oil levels are fine, oil looks good. It's going to cost 900+ to fix it if I go ahead and let the guy fix it. If anybody has any idea, PLEASE let me know.