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Dan, Technician
Category: Buick
Satisfied Customers: 24574
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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06 buick rendezvous stalls or dies after its warmed up only

Customer Question

06 buick rendezvous stalls or dies after its warmed up only codes is p0496 and p0455. Where is schrader valve located so i can hook up fuel pressure gauge.
Submitted: 1 year ago.
Category: Buick
Expert:  Dan replied 1 year ago.

Hello, my name is***** it need to cool down before it starts again? Thanks.

Expert:  Dan replied 1 year ago.

3.6 or 3.5 engine?

Customer: replied 1 year ago.
No usually put it in park or neutral starts right up. 3.5
Expert:  Dan replied 1 year ago.

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.

Customer: replied 1 year ago.
Thank u will let u know
Expert:  Dan replied 1 year ago.

Sounds good, let me know. Thanks.