Idle rpm for 3.9 liter

71,500 MILES • 3.9L • V6 • RWD • AUTOMATIC
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FULTONMAN
  • MEMBER
  • 7 POSTS
My truck has an automatic transmission. What would be the recommended idle rpm while in neutral as well as in drive?

Thanks agaIn
Jun 9, 2016 at 3:00 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
it does not matter because it is non adjustable anyhow, but it is around 750 rpm's for an automatic maybe 900 rpm's with air conditioner on.
Jun 9, 2016 at 5:36 AM
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