There are in fact more than a few places to leak coolant; you're not giving us much guidance here. G12 coolant leaves a crusty white deposit when it leaks out and dries; I'd take the belly pan off, climb under with a strong light, and search for those deposits.

Pro tip: Popular spots for mystery leaks are cracks in the underside of the overflow tank, and leaks in the plastic cooling flange at the back of the engine. Start with those.

Also, any freshly-replaced part is always suspect. Check around the water pump.

 

A lot of times coolant leaks when pressurized only, so harder to spot if the engine is not running, or even idling. As Scott said, a crusty residue helps locate any leaks. If I'm having a hard time finding a leak, I use a bike pump, a large rubber bottle cap that I drilled a hole in the middle for the pump, and that way pressurize the system at the expansion tank. Only a few PSI's are enough. It helps to have another person looking for leaks while you pump the air and hold the plug. This way you can work around the engine while cold, so you won't burn your hands trying to locate the leaks.

 

Thanks for the info. Unfortunately the belly pan is long gone and back issues will prevent me from going under to look. I can and will check your pro tip.

 

(GRIN) Have big holes in your front fender liners, do you?

 

????

 

In addition to reducing noise, improving aerodynamics, and keeping water and debris out of your low-hanging engine accessories, the belly pan also supports the front edge of the fender liner. Without it (or improvisation like zip-ties) the slipstream at highway speed pushes the liners back into the tires, wearing holes in them. Like this:

 

Where does the coolant end up on the garage floor? passenger or drivers side? Like scotts13 said I would check the coolant flange first, IMO the flange fails more often then other spots. I had a leak there once and the coolant was dripping off the back end of the flange hose making it very difficult to spot where the leak was coming from.

 

Well, if it isn't your coolant tank, there's few places it could be that are going to be easy on your back to fix. (The water pump or the rear flange are the two most common.) Check the tank, and if it looks good just take it to a shop.

 

I will check that out.
Thank you