Check engine light has been on for a year and a half or more. A couple months ago the truck began starting rough in the morning. (Backfiring, smoking unless I give it gas). I put in new spark plugs and wires and it started nicely and check engine light was off. One day later check engine came back on and three days later and it had rough morning start. Could this be under tightened spark plugs?
have the same problem?
Thursday, June 30th, 2016 AT 2:54 PM