Valve cover gaskets are exactly what they sound like, a gasket that goes between the valve cover and cylinder heads. Fairly easy repair to do yourself provided you have knowledge of engines. The codes indicate exactly what the mechanic told you, the speed control sensor is malfuntioning or possable the harness that conects to it.Dude said up to 4 hours labor for whatever gasket(s) he thinks is/are the culprit, but that was for the "best case scenario"......just looked at the report and it said "valve cover gaskets"...wherever those are ...But my husband is the one who noticed some oil on the left side of the engine which is why we asked them to take a look.
But the reason we brought the van in to begin with was because the check engine light had gone on and we needed to change the tires and get an oil change....when he looked into the history there were three codes that came up.
P0519 speed control 2
P0579 speed control 1
P0456 Evap small leak
Dude said that it most likely requires a new speed control switch.
As for the evap small leak...I think it points to the exhaust system or something? But when looked at, the leak could not be found...so we are waiting...for now. There was some corrosion on the gas cap hole thing that he grinded out and that seemed to have fix it...we'll see what happens.
We are waiting to bring it back in until the check engine light comes on again so the guy fixes the right part that is setting off the engine light. At the time when we brought the van in the check engine light was not on so he could only see what the history said.
Evap is part of your emmissions system, means there either is a sensor acting up or possably a fuel leak. Evap is specificaly the gas tank or any part of its connection up to the engine. Keep gas fumes from leaking into the atmosphere.
Are you sure it was oil leaking and not gas? Either way not something you want leaking out.