what should rpm be when in neutral and in drive 91 thunderbird with a v6 automatic transmission

1991 FORD THUNDERBIRD
150,000 MILES
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MIRCALE
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wright now when i put it in drive its at about 600 rpm
Feb 7, 2012 at 11:33 AM
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KHLOW2008
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For V6 engine version, no idling speed specifications is available in our database as the idling speed is non adjustable and controlled by the PCM.
Feb 7, 2012 at 2:18 PM