My truck starts then dies after 1 second and my security light is blinking when key is in on position I have aftermarket alarm and its just laying in there and when I go over bumps it knocks against the plastic piece where my knees are never had any problem 2 years but sound bothered.me so I mounted it just with a zip tie and now truck wont start it was running just fine before I can hear fuel pump checked fuses everything is good any ideas I have so much to pay for this came at a horrible time