Question about 1995 Mercury Grand Marquis

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Cant remove the screws of the throttle position sensor I'd tried everything. I don't have any power tools

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  • angelique_cr May 22, 2011

    thanks for the info now all i need is a change of my valve gaskets now since my plugs have oil on them only 2 #1 and #6 plugs



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Have you tried putting the screwdriver or torx bit into the screw and lightly tapping on it to break the corrosion on the screw threads?? By lightly, I mean hit it hard enough to make something happen but not hard enough to break anything.

Posted on May 21, 2011

Testimonial: "thank it help very but had to use vest grips"

  • 4 more comments 
  • Richard Scordino May 22, 2011

    Your thanks is appreciated but you didn't rate the answer. Hope the valve cover job goes easier than the tps did!.

  • angelique_cr May 22, 2011

    I hope so to but it looks like it will cost me 1300 for the job.

  • Richard Scordino May 22, 2011

    What I said didn't help??? It nearly always works! The rating you gave is nearly a bad one!!!
    Oh well, can't make everyone happy I guess.

  • Richard Scordino May 22, 2011

    Whenever you need to resort to vise grips it usually means you don't have the right tools to do the job. Vise grips are a tool of last resort. As for the price for the Valve cover gaskets, Thank the engineers that design this junk....They would certainly change it if they had to work on what they design!!! With a good manual and the right tools though, it's not impossible to do it yourself!! You do need to write down (and mark) electrical plug and fitting locations so you don't mess things up though.

  • angelique_cr May 22, 2011

    ok I will leave it to the experts then. Turning signal on the left flashes faster then the right side. What cause that to happen?

  • Richard Scordino May 22, 2011

    Most times its caused by a bulb being out on one end or the other.



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3 Answers

Throttle position sensor screw is stripped

Cut off the head with a dremel tool

Remove the Sensor

Then work on the screw

Have you used at least a volt meter to test the sensor?

I can tell you a volt meter & a professional scan tool is
not much use, on that sensor

Only an oscilloscope will catch a bad or open spot

So maybe you don't need to change it

I would remove the throttle body & work on it,on
your work bench

Sep 13, 2013 | 2004 Dodge Ram 1500

1 Answer

My 2004 avalanche accelerator pedal don't do anything

Replace the T.P.S. sensor." throttle position sensor"

Feb 06, 2013 | Chevrolet Avalanche Cars & Trucks

1 Answer

What tools would be needed to replace a throttle position sensor on a 1995 Oldsmobile Silhouette 3.8 V6 van?

The two screws and the electrical connector are all that need to come off the TPS to remove it. I dont know of any other componants that you need to remove to get to it. The screws are either a 7mm socket or a T15 or T-20 Torx bit. It is normally on the backside of the throttle body, so on the van you'll have to "crawl-in" to reach it.

The TPS only goes on one way, just line up the "D" shaped slot on the sensor with the throttle shaft. Don't over tighten the screws, snug is good. You don't want to break them.

Aug 27, 2011 | 1995 Oldsmobile Silhouette

1 Answer

2001 chev venture when i start it acelarate by itself they toll me to check the throttle control sensor can you tell me how to change and where to find it

The throttle position sensor will be mounted on the side of the throttle body which is where the intake air is pull thru.There is 2 screws to take out and a 1 wire connection to disconnect.After you replace the sensor you have reset the computer either with a scan tool or pull the ECM fuse out and put it back.If you don't the computer will not reconize the new sensor and therefor it will run the same way it did before you changed it.

May 04, 2011 | Chevrolet Venture Cars & Trucks

2 Answers

1992 K1500, code 22, clicking noise from throttle body, will not accelerate properly, changed TPS with no change

OBD Code 22 - Throttle Position Sensor Error (Signal Low)
The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve. The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

* Extended cranking, possible no-start condition
* Lack of power
* Erratic transmission operation

Common Problems:
* A failed Throttle Position Sensor (TPS) would be the most common causes for code 22
* Testing the TPS circuit would involve checking voltage and ground from the ECM-5v is the normal reading between the ECM reference circuit and the ECM ground circuit at the TPS connector. Checking the TPS signal circuit to the ECM would involve monitoring the TPS signal on a scan tool while jumping the 5v reference and the signal circuits. The TPS reading should go from high when the circuit is "jumpered" to low when the jumper is removed.

Keep us updated.

May 04, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

Changing throttle position sensor on a 2004

Removal & Installation
  1. Disconnect the negative battery cable.
  2. Disconnect the throttle position (TP) sensor electrical connector.
  3. Remove the screws and the TP sensor.

Throttle position (TP) sensor electrical connector

TP sensor

To install:
  1. Install the screws and the TP sensor. Tighten screws to 7 inch lbs. (3 Nm)
  2. Connect the throttle position (TP) sensor electrical connector.
  3. Connect the battery ground cable.

Apr 25, 2010 | 2004 Ford Taurus

2 Answers

Throttle position switch. how much for the part? is it easy to repllace?

This sensor sends the ECU an output signal which corresponds to the opening of the throttle valve. Using this output signal, the ECU precisely controls the air/fuel ratio during acceleration, deceleration and idling. The TP sensor and the throttle switch are combined as part of an assembly. The switch signal turns ON only when the throttle is opened to the idle position or at Wide Open Throttle (WOT) acceleration.

( see Figures 2, 3, 4 and 5 )


Fig. 2: Disconnect the wire harness from the throttle position sensor-Legacy


Fig. 3: Paint a matchmark on the sensor and throttle body for ease of installation and adjustment


Fig. 4: Remove the sensor retainer screws


Fig. 5: Lift off the throttle position sensor
  1. Disconnect the negative battery cable.
  2. Disconnect the throttle sensor electrical harness.
  3. Place a matchmark on the throttle position sensor and throttle body mounting surface, so that during installation, the sensor can be properly aligned.
  4. Remove the 2 screws securing the throttle sensor to the throttle body assembly.
  5. Remove the throttle sensor by pulling it in the axial direction of the throttle shaft.
  6. Remove the throttle sensor O-ring and discard.
To install:
  1. Using a new throttle O-ring, install the throttle sensor, aligning the matchmarks. Install and hand-tighten the retainer screw.
  2. Connect the throttle sensor electrical harness.
  3. Connect the negative battery cable.

Hope this help (remember rated and comment this). Good luck.

Mar 19, 2010 | 1993 Subaru Legacy

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

1. Throttle Position Sensor - $ 55.44

1. Scan Tool
2. Screwdriver
3. Multimeter

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).


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.

  • Throttle position sensor

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

  • 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.

    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

1 Answer

High Idle

The Throttle screw is located on the throttle (obiously) its in a clinderical shaped channel located on the throttle just oposite or obliquely opposite the the throttle body position sensor. In some mazda vehicles (IN TRINIDAD) you need to loosen the throttle body position sensor and slightle adjust it eighter to the right or left to tuen the idle (For electronic controlled axcelleration) in some cases it can be adjusted via an ODB2 diagnostic tool (only in some vehicles that has electronic controlled axcelleration)

You can tell what type your vehicle is by looking for an axcelleration cable connected to the throttle body. If the throttle body has a cable it isnt electronically controlled and has an idling screw. If there is no cable but wires to the position sensor its electronic.

Oct 31, 2008 | 1993 Mazda MX-3

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