Smoke test for leaks
 

Hi, just wondering what would be the best and most accessible place to attach the lines to smoke test the evap system for leaks.

Look for the green threaded cap.


https://cimg1.ibsrv.net/gimg/www.hum...97912f1d0e.jpg

Awesome thanks

Seems my 3.7L doesnt look like that and i have no line there with a green cap

HummerZ pic shows a black line going into the side of the TB. That is where I've done it b4. Also, a great spot to put in whole system cleaner. After the MAF.

15850249 (#12) connects evap line to the purge valve.

https://cimg5.ibsrv.net/gimg/www.hum...581284232b.jpg

https://cimg7.ibsrv.net/gimg/www.hum...703882c4bd.jpg
https://cimg8.ibsrv.net/gimg/www.hum...340e30d989.jpg

Hummerz, is that the same for all year 3.7L? Mines an 08

https://cimg1.ibsrv.net/gimg/www.hum...d3f3a2ade4.jpg

well it seems the guy who owned it before must of used a different line there, he took out the one with the green cap and just put one with a 90 bend on each end. no idea what vehicle he got it from, going to see if i can buy just that line or if i have to buy the whole. thanks for all the help

HummerZ where did you get the photo of the evap lines? do you have a part number for that?