I have a 2005 Chevrolet Silverado 1500 and the other day the engine light came on. The Chevy dealer said the check engine light is related to the emission control system and that I could keep driving the car. I took the truck to Auto Zone and they let me borrow their engine code reade...
The first thing to check with this code is the gas cap. If it is left open or loose, close it tight and the "Check Engine" light should reset itself after a few drive cycles. Sometimes the gas cap itself can go bad. Have a closer look at it, if there is visible damage to the ...
Check under the hood to make certain no vacuum lines are disconnected, check your fuel cap if it isn't sealing correctly or is missing or the wrong one this will cause that code to set, You may have a bad vent valve causing the problem. What this code means is that the computer has ...
We took it in, scanned code P0456, checked for leak in EVAP, could not locate leak. They told us we should check out service bulletin 18-028-3 and reset the codes again. It had been 6 days when the light came back on and this time the codes are 1684, P0442 & P0455. This is...