i have a 2002 gmc seirra 1500 single cab short bed step side…4.3 liter v6…i pull a 16 foot landscaping trailer for my company…my trucks check engine light has come on but thats not unusual….but what makes this scenario bad is when i put the pedal to the floor the check engine light comes up blinking for maby 10 seconds then goes back to solid…please help me…my friend said plugs and wires? any other ideas….the check engine thats currently on is for my cat's…..please get back to me ASAP
