Question about 2002 Chevrolet TrailBlazer
If it is on the fuel rail, it sounds like the fuel pressure regulator. Pull the vacuum hose off it and check for evidence of gas there. There should be no gas in the vacuum line, but if there is, it is a failed regulator. If the gas is coming from where the regulator sits, the o-ring is probably bad. Pull the device off and check the o-ring, and replace it with a new one.
Posted on Dec 30, 2012
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Posted on Jan 02, 2017
That hose is the drain hose for the air conditioner evaporator. If it is leaking coolant, there's a good chance that your heater core is leaking, as it is in the same 'box' that the air conditioner evaporator is in. You'll need to replace the heater core.
Posted on Apr 24, 2009
I have the diagram you need. If you send me your email I will scan it off and send it to you. firstname.lastname@example.org
Posted on Sep 12, 2009
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