2015 Chevrolet Colorado Fuel system Problems

“Engine stalls intermittently when beginning to accelerate from red light/stop sign. Stalls occurred within 1 mile distance from where vehicle was started. First stall was at red light moving forward lightly. Sifted the vehicle to park, turned key, vehicle turned over and was able to drive once put in park. The vehicle was immediately taken to the chevy service center. The service advisor was able to read an error code p0506 even though the check engine light was not illuminated. …”

“Engine Control module-PO442 leak detected and PO496 Evaporated Emission System Flow during non-purge. Also, Inflatable Restraint Sensing and Diagnostic Module -1.B1425-03 Control module power circuit. When we fill the gas tank it takes multiple times to start And Stalls While Driving, almost causing accidents. We have diagnostic report by Firestone, Advanced Auto. First believed gas cap problem when started 2020-2021?Problem has become more constant to point of us not being comfortable driving far for fear of accident or getting stuck somewhere.”

“Beginning in 2018, perhaps earlier, I noticed that often when I would press the accelerator all the way, the engine would (and still does) make a sound (I’ve since learned, through many dealership interactions and internet searches, that the sound is referred as pinging or knocking from pre-detonation), and it SEEMED that the car’s computer would (and still does) electronically back off the throttle, and the rpm’s reduced in terms of speed of acceleration (sometimes the rpm’s even DECREASED as opposed to merely increasing less rapidly). …”

“Just purchased vehicle in early March of this year(2022).Vehicle has low mileage for a 2015.But first problem is an air or evap problem that seems to be a large problem with other owners as well.Unable to fill vehicle with fuel pump nosil without it splashing out of vehicle.Came out on my shoe the first time!!You have to let it trickle into tank to get gas in it.Had it at dealer 2 weeks after i bought it to have a active un-related recall done,so I had them look into the filling problem.They replaced a part that said was bad(evap solinoid)that didnt fix fueling problem,and costly to remove…”

“My 2015 Colorado z71is experiencing moderate to severe hesitation concerns. It's progressively getting worse. I first brought it back to the dealership to have it checked out around1000 miles, 6000 and now 20000. Each time they claimed they can't do anything because the diagnostics reveal no trouble codes, although, per aforementioned bulletin, there's proof that a problem exists. I inquired if it could be a mechanical issue, but they refused to because no diagnostics produced no codes/proof.”