2005 Ford Escape eratic rpm

2005 FORD ESCAPE
88,000 MILES • 6 CYL • 4WD • AUTOMATIC
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WCONVERSE
  • MEMBER
  • 1 POST
When driving at between 50 and 60 miles an hour,
I let up on the gas and the rpm drop and come back
up then drop and come back up several times. I tried one time to put the car and neutral and the rpm did
not drop all the way down. I had the code checked
and no codes are showing?
Jun 8, 2010 at 5:28 AM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard
Jun 8, 2010 at 5:30 AM