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Old 06-29-2006, 04:16 PM   #1
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Vapor Lock???

My 97’ Mazda B-4000 has failed on me twice in the last two weeks, a friend was with me the first time and said that it was vapor lock when it started acting like it was running out of gas on a full tank. He showed me how to bleed off the air from what looks like a tire valve on the left side of the engine so I knew what to do the second time it happened. Is this what it is? Can it be prevented? What causes it? Thanks for the help.
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Old 06-30-2006, 05:13 AM   #2
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where exactly is that valve? the only ones i can think of are the ones for the AC. i don't think i have ever heard of newer vehicals having vapor lock problems.
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Old 06-30-2006, 12:08 PM   #3
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If you are facing the engine it is on the left side about halfway down the block, here is a picture, it is circled and has a blue cap and then a closer picture of the valve stem (I dont know what else to call it).
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Old 06-30-2006, 04:56 PM   #4
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never seen anything like that before, sorry.
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Old 06-30-2006, 05:12 PM   #5
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Thats where the technician hooks up a gauge to pressure test the fuel system.
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