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Discussion Starter #21
Update re. the o-ring sealing/replacement (as needed). It has been several months now since the problem of the o-ring seals. My car has continued to run extremely well since my last update. At startup and just a few seconds of warmup I can just tap the gas pedal and the engine idles right down and runs smoothly. It never did that early on, in fact the 07 GXP I had from new (only for a year) never ran that well. Only had 7K miles when I traded it in on my 09 G8 GT.
Just thought I'd let all know about this "fix" and its continued results.

Happy Thanksgiving guys and gals!!

grandpop07
 

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Discussion Starter #22
Another update on my "repair" by lubricating the O-rings on the purge solenoid and MAP sensors: my car has had no further problems with rough running on startup and idle to date - May 2020 - I intend to re-lubricate the O-rings from time to time as a maintenance item. The car is continuing to perform like new! Happy motoring guys and gals - stay well and enjoy your cars.
 
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