Idle bogging down too low when placed into gear after warm up.

1997 FORD THUNDERBIRD
76,000 MILES
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GMSPOA59
  • MEMBER
  • 1 POST
Where does the signal originate telling the computer to raise the idle r.p.m. when automatic transmission is placed into gear ?'97 T-Bird 4.6L . It is not the idle control valve. Replaced .
Oct 31, 2011 at 5:53 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
It comes from the PCM based on information from other sensors. Have you checked for vacuum leaks?
Oct 31, 2011 at 7:12 PM
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