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  1. General
    I have a 2007 TrailBlazer LT 5.3 V8 with the following problem: When I measure the pressure with the key ON, the fuel pressure is at 50psi, ignites with difficulty and once it ignites the fuel pressure goes to 95psi immediately and when the key go back to ON the pressure drops to 0. No idea...
    2007 fuel pressure trailblazer
  2. OEM Issues
    So while repairing a coolant issue I found that my vacuum line from my resonator to my fuel pressure regulator was broken. It broke right where the line enters into the rubber elbow. I have read that having this little line broken will cause your vehicle to idle rough or not properly. I have...
    fuel pressure resonator vacuum
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