SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2005GTREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1636 (PINPOINT TEST HF: CATALYST EFFICIENCY MONITOR AND EXHAUST SYSTEMS THROUGH PINPOINT TEST HX: EVAPORATIVE EMISSION (EVAP) MONITOR AND SYSTEM - (EXCEPT DIESEL & HYBRID))PINPOINT TEST HU: INTAKE AIR SYSTEMSTEST PROCEDURE
2005 Ford GT

Test Procedure

2005 Ford GTSECTION Test Procedure
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Milan, and 2006 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
  1. HU1 CHECK FOR DTCS 

    Are DTCs P0660, P1512, P1513, P1516, P1517, P1518, P1519, P151A, P1520, P1537, P1538, P1549, P2004, P2005, P2006, P2007, P2008, P2014, P2015, P2019, P2020, P2070, or P2071 present? 

    Yes No
    For DTCs P0660, P1549, P2070 or P2071, GO to  HU43.
    For DTCs P1512, P1513, P1516, P1517, P1518, P1519, P1520, P1537, P1538, P2004, P2005, P2006, P2007, P2008, P2014, P2015, P2019 or P2020, GO to  HU15.
    For DTC P151A, Mustang 4.6L, Explorer 4.6L and Mountaineer 4.6L.
    GO to  HU18.
    For DTC P151A, GO to  HU17.    		 For lack/loss of power, GO to  HU43.
    For all other symptoms without DTCs, GO to  HU2.
  2. HU2 PART THROTTLE SYMPTOM 

    Are any part throttle concerns present? 

    Yes No
    GO to  HU7. GO to  HU3.
  3. HU3 CHECK THE BASE IDLE SPEED 
    NOTE: The vehicle must be at operating temperature and at idle for a minimum of 1 minute.
    • Key ON, engine running.
    • Determine if the idle speed is incorrect. Refer to the TYPICAL REFERENCE VALUE CHARTS , if necessary.
    • Access the PCM and monitor the RPM PID.
    • If equipped, read the vehicle tachometer.

    Is vehicle idle speed correct? 

    Yes No
    GO to  HU5. GO to  HU4.
  4. HU4 CHECK THE THROTTLE ARM CONTACTS 
    • Key in OFF position.
    • Check that the throttle arm contacts the return stop.

    Is the idle speed high? 

    Yes No
    GO to  HU9. GO to  HU10.
  5. HU5 CHECK FOR BINDING OR STICKING IN THE THROTTLE SYSTEM 
    • Gently cycle the throttle from fully closed to fully open and back to fully closed. Check for sticking or binding during rotation.

    Is a stick and bind condition present? 

    Yes No
    GO to  HU6. GO to  HU7.
  6. HU6 ISOLATE THE BINDING AND/OR STICKING CONCERN 
    CAUTION: Do not attempt to clean the throttle bore and plate area. Cleaning damages the throttle body assembly.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.