95 Buick Regal - High RPM when in neutral

mruschmann

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Let me give you some description:

I know that i have been getting transmission error codes for a couple years now, but they have recently become more frequent. I have not recently check the error codes with the new symptoms. The problem that I am trying to figure out is "why does my car have high RPMs when put in neutral?" this only happens after I have driven the car for 15-20 mins plus.

I am completely stumped on this, I have cleaned the throttle body 1 year ago. Does anyone have any experience with this?

1995 Buick Regal
160,000 miles

Thanks,
mike
 
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