The condensate drain for my A/C is plugged, and in the summer, every time I make a sharp turn, the water overflows and spills into the passenger or driver's footwell.

 

Where is the drain tube and what is the best way to access it/clean it?

Look under the car on the passenger side you should see the hose. You can either shoot some compressed air up the hose, or use some thin wire to clear it out. Dont use anything super stiff to avoid damage.

 

nipper

The condensate drain for my A/C is plugged, and in the summer, every time I make a sharp turn, the water overflows and spills into the passenger or driver's footwell.

 

Where is the drain tube and what is the best way to access it/clean it?

 

What Nipper said with one addition---it's down low on passenger-side of firewall--it's a rubber hose that sticks thru the firewall and the end of the hose is "closed off" to prevent stuff from going backwards thru it. Only problem with that design is that the slightest amount of dirt will restrict the hose where it closes off and it becomes plugged.