I just got my truck back today from getting the A/c fixed. I had the EVAP. replaced. And whenever i shut the truck off, the evap (imguessing, cause its comming from the dash on the passengerside) makes a kshhhhhhhhhhhhhhhhhhhhhhhhh sound when i shut the truck off. I'm just wondering if thats normal or if that means im gonna loose my A/C for the third time.



Thanks.

 

Hey Dak my 2001 does the same thing - but now I noticed that after I have either had the A/C running or just air out of the vent, I get my passenger side carpeting soaking wet.

 

Thats what happens to me. Does yours still work? How long has it been doing it?

 

Most likely your HVAC box drain is clogged, or, draining back into the box when you are driving. Try cleaning it out with a shot of air or a tool that gets in there. If no luck after cleaning it out, do a search on here. Many people have put an elbow on the drain to prevent it from blowing back in the box.

 

My truck has made the vent noise since I got it 2 yrs ago- but the drain problem is recent.

 

Where is the box drain? Is it easy to get to?