Trouble Code P0125

Year, make, model, engine, mileage???????????????

Doc

You need a different radiator shop. There's only 3 places for coolant to go. It can leak out on the ground, get into the oil pan, or go through the exhaust.

Sorry i thought i had put that in the subject. I?ve got a ?98 Chevy Tahoe 4x4 with about 107,000. The shop i took it to did a pressure test on the coolant system and it didnt show a pressure drop. They crawled all over the engine and didnt see anything. They took the plate off the bottom of the radiator to look around and still didnt see anything. Today was the first time Ive actually seen small pools of antifreeze under the car in the driveway. There were two spots, both passenger side, one just even with the back of the tire, the other another foot and a half back. Anyway, I hope that all helps. Should I be worried about driving it? Temperature guage doesnt show any overheating and the engine doesnt appear to run/smell any differently. Thanks for your time.

Intake manifold gaskets most likely. Super common problem with this engine, and at 107K it's about due.

Doc

take a good look at the heater hoses too. sometimes a leak in one of them is hard to spot. Then when its all fixed and that code comes back.....change the t-stat, its probably stuck open.