Vapor Lock??? -
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post #1 of 2 Old 07-04-2001, 03:35 AM Thread Starter
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1999 XJ Cherokee 
Join Date: Apr 2001
Location: Albuquerque New Mexico
Posts: 831
Vapor Lock???

Hey, again, as in my last question it was about a fuel problem, i cleaned out all the lines and there was a chunk of rubber in the tank, i highly doubt that was why my Jeep would die and or not start, so what i am wondering, since it does pump fuel and work, if it could be Vapor Lock or something quitting, can anyone explain vapor lock or help me with my problem? Thanks

1998 TJ
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post #2 of 2 Old 07-04-2001, 05:18 AM
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1992 YJ Wrangler 
Join Date: Feb 2001
Location: Northern California
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When a fuel is heated, vapor is driven off, which in turn reduces the volatility of the remaining fuel. This is usually caused by a preexisting cooling problem. As the engine over heats it causes the fuel to boil. A fuel line too close to the exhaust might also do it. If you shut the engine off for a while and let it cool, it should restart.

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