I had it done on my 03 at Cerritos Hummer in So Cal. I read on a thread somewhere here that it would solve the problem of the cruise control causing the engine to rev way up to 5000 RPM or more on mild up hill grades. Well, it didn’t solve the issue and I haven’t noticed any change at all.
It seems strange that your dealer would be hesitant based on the fact that Cerritos told me it was a normal part of the Throttle Body and Emissions service.
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thank god we have ammo
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