Hey so I have a 2002 Monte Carlo ls and noticed a coolant leak it seemed to have gotten worse and at first I thought it was the cap got that replaced today and it’s still leaking I’ve identified that it’s coming from underneath the engine but under the aluminum part so I don’t have the best view. I’m not too well versed in this particular engine with the coolant lines and not too sure exactly if the leak is a hose or something else entirely if you can help I’d be very grateful. Thank you. If you need more photos let me know it’s late right now and I’m tired and just wanna head to bed.

 

Your best option is getting a radiator pressure tester (free loan-a-tool at most auto parts stores), hook it up, put some pressure on it and look/listen for the leak. At the age of these cars, could easily be anything from a hose, radiator, etc.

 

If your car came with a block heater, a northern car, there is a block heater plug kinda like a freeze plug on block, low, behind radiater. I recently had a mystery coolant leak/loss and it was that !!

 

Ditto