Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David. has it been raining where you are?
there is a TSB(technical service bulletin) addressing this concern. There is a 90degree extension tube that needs to be installed at the end of the drain to keep the condensation from weeping back into the vehicle.
from underneath the vehicle, towards the passenger side on the firewall is the drain exit. It will be almost straight across from where the right cv axle meets the transfer case.without the elbow there, you will have to reach up and feel along the firewall for the exit drain hole. once you find it, use a vacuum hose to suck out the debris, or even use a short length of coat hanger wire to insert into the drain and try to clean out the debris.you will need to have the elbow installed to prevent this from happening again
its really tough to locate. let me see if i can find a better diagram
there has to be. its actually not a hose. its a hole.
and im telling you where it is
it may be under a small cover behind a line
did you look at the attached diagram?
gimme a sec
if you cant find it, then you will need to pull back the carpet and look for where the drain hose goes to the firewall. that diagram is the best one i got.
i cant be there to show you where it is. i told you and gave you a diagram of the location. you are missing it. it is very difficult to locate but its there. how is that not solving your problem? you need to move things around and find it.