Question about 1988 Ford F 150

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How do I replace the throttle position sensor?

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To be exact one would need to know the type/year of auto/engine. but basic would be to look at the bottom/side of your throttle boby and you will see a sensor with two screws bolted on. there will be an electical wire attached to it. The sensor will, when screws are loose, move a little for adjustment. Hope this helps,
P. Ford

Posted on Jan 10, 2013

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Hey Rick,here's a link on how to test and replace the throttle position sensor,hope this helps.

Posted on Jan 10, 2013

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Posted on Jan 02, 2017

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SOURCE: 1990 f150 truck cranks up but got to press gas

Have you checked for a vacuum leak? Be suspicious of the solenoids you see with vacuum lines going to them. I think it has 3 or 4 of them. don-ohio

Posted on Oct 09, 2011

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Throttle Body Assembly
The throttle body assembly contains the following components:
?€¢
The throttle blade


?€¢
The throttle actuator motor


?€¢
The throttle position (TP) sensor 1 and 2

The throttle body functions are similar to a conventional throttle body with the following exceptions:
?€¢
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?€¢
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?€¢
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Throttle Body Assembly
The throttle assembly contains the following components:
?€¢ The throttle blade ?€¢ The throttle actuator motor ?€¢ The throttle position (TP) sensor 1 and 2 You have to replace the Throttle Body Assembly !
Disconnect the negative battery cable. Remove the inlet hose assembly from the throttle body. Disconnect the throttle body electrical connection. Disconnect the hose clamps from the plenum-to-runner connector using theJ 43914 .
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How to fix a 2003 dodge durango trouble code 0121


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My Hyundai Santa Fe 2004 doesn't shift down from overdrive when driving at 70 mph. Recently replaced the crankshaft sensor and timing belt. It is an automatic and the other gears seem to shift alright....


You might try testing the tps. It may have a dead spot at the high end of the throttle opening. Make sure the resistance continues to change as you open the throttle all the way.

Throttle Position Sensor

Operation The throttle position sensor is a rotating type variable resistor that rotates with the throttle body-s throttle shaft to sense the throttle valve angle. As the throttle shaft rotates, the throttle angle of the sensor changes and the ECM/PCM detects the throttle valve opening based on the TPS output voltage.
Removal & Installation
  1. Disconnect the negative battery cable.
  2. Disconnect the sensor connector.
  3. Remove the sensor retaining screws. Remove the sensor from its mounting.
To install:
  1. Installation is the reverse of the removal procedure.
Testing 2.4L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 1 (sensor ground) and terminal 2 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 1 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
2.7L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 2 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 1.6-2.4 kohm.
  4. Connect and analog ohmmeter between terminal 2 (sensor ground) and terminal 3 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.
3.5L Engine
  1. Disconnect the sensor connector.
  2. Measure the resistance between terminal 3 (sensor ground) and terminal 1 (sensor power).
  3. Specification should be 3.5-6.5 kohm.
  4. Connect and analog ohmmeter between terminal 3 (sensor ground) and terminal 2 (sensor output).
  5. Operate the throttle valve slowly from the idle position to the full open position, and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
  6. If the resistance is out of specification, or fails to change smoothly, replace the sensor.

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Sep 24, 2017 | 2004 Hyundai Santa Fe

2 Answers

How to change a throttle position sensor on a 94 ford f150 5.0 4x4


How to Replace a Throttle Position Sensor
(DIY & Save up to $135.75 ) - Time: 2.1 hours

Parts:
1. Throttle Position Sensor - $ 55.44

Tools:
1. Scan Tool
2. Screwdriver
3. Multimeter

Procedure:
1. Locate the OBD data link connector (DLC). Refer to your owner’s manual for the specific location.
  • Tip: The OBD-I data link connector is usually located in the engine compartment near the battery or the fuse box. The OBD-II connector (post 1995 cars) is usually located beneath the instument panel next to the steering column.
2. Turn your key to the“ON” position. Do not start the engine.

3. Plug your scan tool into the OBD data link connector. Turn on the scan tool and select the appropriate steps to read the diagnostic trouble code (DTC).

    6db8845.jpg

Scanner plugged into OBD-II data link connector.
  • Tip: The OBD-II diagnostic trouble code (DTC) is a 5 character alphanumeric code. The first digit is a letter that indicates the component group, the second digit is OBD mandated or manufacturer specfic, the third digit is a subgroup, and the fourth and fifth digits define the component and basic problem.
  • 4. Locate the throttle position sensor.
6182d26.jpg

  • Throttle position sensor

  • 5. Disconnect the electrical connector from the throttle position sensor.
fc565b1.jpg

  • Electrical connector removed
6. Test the resistance of the throttle position sensor (TPS) with a digital multi-meter. If the resistance is out of specifications, the TPS must be replaced.
  • 7. Remove the throttle position sensor.

  • d3a8007.jpg

    Removing sensor mounting screws

    8. Install the new throttle position sensor. Tighten the mounting screws and attach the electrical connector.
  • 9. Erase the diagnostic trouble code (DTC) with the scan tool using the“delete” or“erase” command. Road test your vehicle to see if the check engine light returns.
fde01cf.jpg

    Check engine light

  • Tip: If the check engine light returns, repeat the diagnostic process for additional DTCs or take your vehicle to a certified repair shop.
Direct OE replacement

Hope helped with this. Good luck (remember rated this help).

Nov 05, 2009 | Ford F-150 Cars & Trucks

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