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Dan, Technician
Category: Buick
Satisfied Customers: 23704
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: 8 months ago.
Category: Buick
Expert:  Dan replied 8 months ago.

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

Expert:  Dan replied 8 months ago.

3.6 or 3.5 engine?

Customer: replied 8 months ago.
No usually put it in park or neutral starts right up. 3.5
Expert:  Dan replied 8 months 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 8 months ago.
Thank u will let u know
Expert:  Dan replied 8 months ago.

Sounds good, let me know. Thanks.