Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** it need to cool down before it starts again? Thanks.
3.6 or 3.5 engine?
P0496 usually means purge solenoid has failed and can also cause the P0455 with stalling so I'd start by replacing purge solenoid and cleaning out throttle body. You can get throttle body cleaner from parts store, spray onto rag, and wipe out. If problem was fuel pressure related it wouldn't restart right away so I wouldn't even bother testing pressure. Let me know if you have more questions, thanks.
Sounds good, let me know. Thanks.