I had a leak at the lower radiator area that caused low coolant light to come on.I replaced the radiator two years ago thats not the problem.So I supposedly had a Manifold gasket set , valve cover gasket, some hoses and t-stat replaced. As soon as I put it on the interstate going to work the low coolant light comes on. I had it purghed and it was fine for 4 days until it started again. I put a new radiator cap on it and the problem still continues. The garage says I need a head gasket now but it runs fine , doesn't smoke out the rear and the oil is not milkey. I had another mechanic look at it and he says he wouldn't replace the head gasket either. We found that it's pumping out of the radiator but not back in.The hoses are clean too. The fans working but the reservoir is full of coolant and the tempature gage never runs hot but stays at medium. Thanks, I went and had it pressure checked and found it was working fine but it appeared to me that it wasn't. The radiator shop found that it was a bad censor in my radiator, and nothing more.
Add coolant light comes on on 1996 Chevrolet Lumina APV
the fact that the coolant is going to the recovery tank and not returning says 2 things. either the radiator cap is bad or you have a leak and there is no vaccuum pulling the coolant back into the radiator. have your system pressure tested for leaks. it is going somewhere.