Shirley Mattocks Posted on Aug 14, 2014

My 1999 pontaic Montana starts but wont stay on what could that be?

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Buddy

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Posted on Aug 14, 2014

Buddy

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Joined: Apr 20, 2013

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There are many symptoms which could cause this problem... electrical, fuel, ignition, etc... determine your error codes and start from there. If the Van has been sitting for some time I would add an octane booster and gas dryer, disconnect the fuel filter and allow ~ 1 gallon of gas to drain into a 2 gallon gas can, replace the fuel filter and see what happens. If that didn't work I would work through the ODB II codes to find the probable cause.

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