As the title says: some might have an ses p0446, evap emissions vent circuit low. If you take it to the dealer they want 300-400.00 to fix the problem. GM has a service bulletin on this condition and have the updated part for 180.00, thats suppose to eliminate this issue. Basically the problem...

Hello All, So has anyone had any luck in figuring out what is causing the battery drain issue son our trucks? I've googled the issue until my fingers have bleed and still have not found an answer. In the mean time I will continue to troubleshoot and take readings.

History: Bought truck new- 2007 Silverado Crew Cab LTZ Z71 4x4 with 5.3 and active fuel management. All was great for a while, first new vehicle I'd ever owned. At 54,500 miles check engine light comes on and has misfire-dealer diagnosed as no compression on cylinder7, Replaced collapsed...

I did browse the first thread on here but my 05 Suburban has never thrown a code. bought it with 91k and it now has about 165k http://www.gmtruckclub.com/forum/threads/how-to-fix-code-p0449-evap-pics-video-and-part-s.110446/ Issue is as stated. Can fill about a half gallon at a time unless i...

I have a 2016 Silverado I bought used last yr. last month, i started having issues with what I'm assuming is the transmission (not a car/truck guy). the truck will start up and run fine as long as its kept at a constant pace. if I have to slow down after driving it for a while, when I step on...