
2000 Ford F-250 Super Duty Lariat 5.4L Poor Idle Quality
Why would the PCM command the TPS to open the throttle to 2500 rpms at idle. Unplug the TPS, idle is perfect. Keep the TPS plugged in and unbolt it from the throttle body, idle is perfect. The PCV hose is not leaking. Cannot locate any vaccum leaks,propane all...
Summary posted 5/26/2009
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Message Closed w/Summary
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VIN | 1FTNX21LXY |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |
Message Closed w/Summary
Vehicle Data
2000 Ford F-250 Super Duty Lariat
VIN | 1FTNX21LXY |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality |
Occurs | Always |