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The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
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Fuel leak

Old June 26th, 2019, 5:48 PM
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Fuel leak where vacuum line goes in to the vortec cover. Anyone deal with this? Any help in how to fix it would be appreciated.
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Old June 27th, 2019, 9:28 AM
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Originally Posted by Jeff Frahm View Post

Fuel leak where vacuum line goes in to the vortec cover. Anyone deal with this? Any help in how to fix it would be appreciated.

Looks like a vapor line to me. It's not the PCV. Likely you are going to need a new vapor canister which is why you smell gasoline. No way that is a gasoline line..
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Old June 27th, 2019, 10:50 AM
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Yea, This is my son's vehicle, so I have not seen it other than this photo. After some research on the web. I believe the other end of that vacuum hose is connected to the fuel pressure regulator. I have a feeling the fuel pressure regulator is leaking and the fuel is going up that vacuum line and leaking out at the top where it goes in to the air resonator. I don't think there should be any fuel in that vacuum line. Pretty sure we just need to replace the fuel regulator.
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