Recent content by Katsslvn

  1. K

    Excessive fuel pressure while not running

    We changed the on start switch but still doing the problem
  2. K

    Excessive fuel pressure while not running

    We have a 2007 gmc denali and it will display excessive fuel pressure 100 psi when truck/key is off. Mehcanic has supposably changed th fuel pump and module and vehicle wont start after driving for a few miles. Found if I release fuel pressure from fuel rail the vehicle will start. No codes...
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