Question about 2001 Ford Explorer

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2001 Ford Explorer Sport Throttle Position Sensor

The check engine light was on for a few months on my 2001 Ford Explorer Sport. I finally located and repaired a vacuum leak but now I think the TPS is bad. Using the Haynes test recommendations, it should read from 1v with the throttle closed to 5v with the throttle open. It stays at 5v throughout. I replaced the TPS but the new one gives the same readings. Note that prior to locating the vacuum leak, I checked the TPS and it tested within specs.

Is there another way to test the TPS? Did I just get a defective new one? Is the TPS good but possibly the Power Control Module (PCM) bad?

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  • dougb134 Oct 07, 2008

    I too have the same problem. After warms up, the engine is at 2000 rpms then when fully braked, will drop down to 1000 rpms. I took it to AutoZone and checked error code because after I replaced the TPS, I got the check engine light. There are two different TPS sensors for this model and I had gotten the wrong one. That still did not fix my problem so, the guy brought out a IAC motor and that did not fix it either. Needless to say, I made an appointment this morning with Ford

  • dbellis Dec 04, 2008

    tps out of range code keeps coming up after I changed tps

  • Ismael Ricardo Chvez Mendoza

    Is very easy, you need to buy and replace the tps, it is not expensive.

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I have a problem with my truck it runs fine but when i put it in drive or reverse it blogs out for a second but when iam doing 23/30/40/50 what ever its fine...

Posted on Feb 25, 2010

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The Ford company replaced the thermostat and the IAC motor. It fixed my the problem.

Posted on Dec 30, 2008

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Hi , i have the same problem , and i fix it i just change my intake gsket

Posted on Dec 30, 2008

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Hi, Take a little time to check all earth mounts,There are some fine earthwires under the looms running from air intake if one of these is broken or dirty it can cause all the symptoms you describe. All the best. Phil

Posted on Sep 11, 2008

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ok, sounds like you covered the basics with spark. I would check in this order; 1-Throttle position sensor, sometimes it wears out and you get poor signal back to computer, 2-clean MAF sensor, 3-check/clean IAT (intake air sensor). If this still doesn't help then I would check your fuel flow....but i'm thinking its your tps. Two screws will change that out quickly.

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I have a 2005 Ford explorer xlt sport and it won't start.It ran fine until one night I put gas in,parked it,got up the next morning and it wouldn't start.It acts like it wants to,but won't.So far we have...


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You have both a fuel pump relay and an ECC relay in the Powerbox.
If this is a Double Overhead Cam V-8, the are parts called "Cam Phasers" which can stick and throw off timing.
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Most of the items I mentioned will not throw a diagnostic Code. You did not indicate whether a Code was set. The throttle position sensor can be checked by disconnecting the electric lead and using an Ohmmeter on the part while you move the throttle. The Ohms should change smoothly.
Would like to know what you find.

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2001 ford sport trac put it in drive or reverse and let it idle and it shakes real badlike the motor is about to fall out give it gas and goes away check engine lite not on and no codes found only...


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I have an Explorer Sport trac 2001 (2005 in Venezuela)... last week I took her to complete a service on the fuel injectors and also replaced spark plugs as she is very slow to pull up.. I have checked...


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Since you are demanding more EGR flow with higher speeds the blocked groove is causing a restriction and causing the other components to trip a warning.

I do not know your Pollution equipment. On older U.S. cars there were airpumps that were belt driven and some had a type of air filter that needed cleaning.

Another part called a (TPS) throttle position sensor can affect the engine performance.

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