A couple weeks ago I bought a used 06 3500 5.9 mega, and today the check engine light came on. When I try to get an error code on the odometer it comes back blank. After the ----- it goes blank for a few seconds then says -done-. Any ideas?
Generally if the "Check Engine Light" has come on there will be a code stored in the vehicle's computer and it will be stored until erased using a scan tool or the truck has completed a sufficient number of drive cycles without having seen the problem reoccur. In this case it has done a self test seen no fault and erases the code.
looks like it may have been the gas cap after all, light went out after sitting overnight. thanks for the quick feedback yesterday
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