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My 2013 Silverado 2500 has been misfiring & jerking under acceleration for a little while now & the CEL finally came on last night at startup. I took it in to Autozone & it showed for P0442, small evap system leak, canister purge valve, with the recommendation of replacing the evap emissions purge solenoid.. Could this be the reason for the misfire &, more recently, random gas smell? I'll attach a pic of the print-out. Also, not sure if it means anything, but is there something wrong with the ABS too?? There's no code but I just don't get why it would be on the print-out then... Thanks in advance!

I have a 98 Silverado z71 with 5.7 350. The check engine light came on giving p0405 code. (low egr voltage). I have replaced the egr and nothing changed. I tested the wiring with the egr unplugged and it tests fine, but if I plug the egr in I lose the 12 volts. If I unplug it I have 12 volt. Now that's with my ohm meter. If I put a load on it, ie hook a headlight to it, it wont power it. I have traced all of the wires back to the ecm. They all are fine. I even unplugged the wiring from ecm and put 12volts from the battery thru the 12volt wire going to the egr and the wire is fine. A friend who is a mechanic by trade said it could be the ecm. I replaced the ecm today.(not a brand new one. one from a used parts/salvage yard). I got the truck to run and the check engine light came on within a few minutes. Same as before, with the ohm meter I have 12 volts going to the egr with the plug unplugged, as soon as I plug it in it goes to 0.03 volts. I even bought another egr thinking it could possible be a bad/shorted one. I'm at a total loss. any help would be great. Thank you!!

Anyone have a check engine light show up then go away and come back? Code uo129 lost communication with brake control module, UO101 lost communication with transmission Control Module. Went to bed with no check engine light, woke up in the morning for work and noticed the truck would not remote start. When I go in to head to work noticed check engine light. After work ran codes. Shortly after getting codes and using google to research check engine light was gone. Went for a drive never came back on. Woke up this morning it was on again. Can anybody relate?

I did a search here for it but came up empty. Last week, my Check Engine Light came on briefly while on the highway. Just before and after that I noticed a reduced lack of response to giving it more throttle. I had a local guy pull the CEL code and said it came up as #7 Cylinder Misfire. I'm at 55,000 miles and am off warranty. The truck is a '14 with a 5.3. Any suggestions, or thoughts how serious this may be ?

Hello I got a baffling problem with my 2017 Chevy Silverado 1500 LT with the 5.3 L and Z71 package in it. I got a U1510 code and U1501 code. The U1510 says it’s a LIN on bus communication issue. Now this was about the end of August when that happened. Looked at a few things couldn’t really figure it out and didn’t have the time to look because the truck seems to be running fine. About 4 days ago my service brake trailer starts flashing on my dash when I’m not even towing a trailer (the last time I did was about 5 days before this). Now I take it to my step father who owns a garage and has worked on chevys for years. Now the U1510 code is still there when we scanned it but the U1501 code is gone but now on top of those codes there’s a U1037 code which is lost communication with trailer brake control module, P0562 which is low system voltage for Chasis Control Module, B127E code which is Front video display output signal, and C0800 code which is control module power circuit below voltage threshold for the power steering control module. The truck driving it runs perfectly fine, nothing abnormal at all. So thinking the trailer brake might be a separate issue we checked that out all the wiring etc and nothing wrong with it. So for the other codes we went and checked all the grounds on the truck thinking it might be a ground issue and all them seem to be good. We are starting to think maybe it’s a PCM, ECU problem because of all the random codes being thrown in every direction as well as codes in the system before disappearing. Any advice or help would be appreciated!!