1998 GMC Sierra "clear check engine line 2013" Questions

Check engine light and ETS light keep coming on at the same time. I cleared them off three times in less than 1 month. It says P0440 Evaporative Emission System with a red light on. I wonder what this

...engine, A/C, etc, appear to still be working). Since the heat the battery drains in a few hours, but I have no owner manual to find individual fuses to check them, only the main fuses by the pedals ...

...Check all electrical connections in fuel delivery components. If the ecm is touchy it might not be sending the signal for the injectors to shoot gas into cylinders. But I think you have a bad ...

...clear the DTC(s). 2. Start the engine and run until operating temp is reached. (Closed Loop) 3. If the DTC does not reset it may be necessary to test drive the vehicle. Does the P0016 return? Yes Go ...

...check the timing marks. The marks on the pulleys and housing lined up just fine but the 3 lines on the belt did not line up with the pulley and housing marks. Is this a problem? The directions were ...