Buick Repair Questions? Ask a Mechanic for Answers ASAP
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It is not likely that your car is vapor locked. On modern vehicles the fuel pressure is much higher around 60 psi and this prevents vapor locking.
I would try unplugging the mass air flow sensor, and try to stat your car. It is somewhat common for the mass air flow sensor to fail and cause a no start.
It is possible you got some bad gas but it is not very common. Have you filled up at the same gas station before.
Other possible causes for a no start for this vehicle is,
-no fuel pressure caused by a failing fuel pump. The fuel pressure can be checked with a fuel pressure gauge you can rent from most auto parts stores.
Also sometimes the crankshaft position sensor has been known to fail when hot. This will also cause your concern.
A scan tool is needed to check for a bad crankshaft position sensor. A fault code will normally be set and engine RPM'S can be monitored while cranking the engine to see if the sensor is good.
Mass air flow sensor is number 6 in the diagram.
Hi i am just checking back in. Have you had any luck with your Buick?