Question about Ford F-150

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2001 f250 4x4 5.4lL changed speed sensor truck runs worse o/d light flashing .

Got a 720 code output speed sensor , changed sensor, started truck o/d light flashing idles rough will resetting computer clear this up?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 625 Answers

SOURCE: obd code po200 and po300. 2002 chevy 2500 hd

this trucks have very coming problem with the injectors stuck open or close, and some times they just works great and some does not, dealer has an updated injector assembly, i recomend you to install this update and spark plugs and plug wires, if you had replace plugs and wires recently just redo the spark plugs with the injectors

Posted on Jun 15, 2008

  • 1 Answer

SOURCE: truck starts, dies. truck runs good some days,bad the next

I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!

Posted on Oct 06, 2008

emissionwiz
  • 74945 Answers

SOURCE: engine runs rough at certain speeds 3.0 v6 flex-fuel 1999 ranger

Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..

Posted on Nov 23, 2008

  • 636 Answers

SOURCE: Rough Idle/Runs Rough and low power

I would take it in and have them do a diagnostic on it, sounds like the cam shaft sensor to me.

Posted on Sep 19, 2009

  • 532 Answers

SOURCE: My 1996 Ford F150 4.9l 5spd. rough idle, poor drivability, stall

try replacing the throttle position sensor

Posted on Oct 24, 2009

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1 Answer

Would a code 720 cause the following problem?


No the speed sensor will not cause misfires at higher speeds and this sensor is located on transmission case up high and towards the tail shaft Not in the tail shaft that one is the vehicle speed sensor and it sets a po500 code.

Apr 30, 2014 | 2003 Ford F250

1 Answer

P0720 stratus codes


code p0720 refers to output shaft speed sensor(OSS)--circuit malfunction====causes--wiring--OSS sensor--ECM/TCM
of it has just happened check the wiring and connections to the transmission for water and corrosion or replace the OSS sensor in the transmission.

May 08, 2013 | 2002 Jeep Liberty

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1999 jeep cherokee laredo code po 720


Code 720 is a problem with the output speed sensor on the transmission.
The sensor would need to be tested.

Dec 22, 2012 | 1993 Jeep Grand Cherokee

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P0720 speedometer and car speed problems


if it worked for a short time then check the wiring around the sensor you would have moved them around changing the sensor

Aug 12, 2012 | 2002 Ford Escape

1 Answer

What does code 720 diagnostic mean


P0720 = output speed sensor malfunction.

This is a sensor on the transmission that shows output shaft speed. Either it is malfunctioning or the wiring to the sensor is faulty.

Mar 14, 2011 | Dodge Ram Pickup 1500 Cars & Trucks

1 Answer

The 4x4 green light is flashing so the gear changed frist and second only,[automatic gear]


Sounds like a bad output speed sensor, you will need to have the codes pulled to confirm this.The 4x4 transfercase is monitored through the transmission computer and the flashing light is a flag to let you know there is a problem.Let me know if I can help.

Feb 18, 2011 | 2001 Mitsubishi Montero Sport 4WD

2 Answers

I had my Honda checked because the engine light came on and it came back with the codes (P700)(P720) I know I need to replace my transmission speed sensor but what is the other code tell me.


is this a generic code or manufacturers code as i cannot find these number in any of the codes

P0700....Transmission Control System (MIL Request)


P0720....Output Speed Sensor Circuit

hope this helps

Nov 03, 2010 | 1998 Honda Civic

1 Answer

2001 f350 7.3 overdrive light is flashing and speedodometer is jumping erratic


it indicates an insufficient output from the OSS sensor.The output shaft speed (OSS) sensor is a magnetic pickup that provides transmission output shaft rotation speed information to the powertrain control module (PCM).
I suspect RFI, affecting the OSS signal to the CPM. I will post the actual PCM rationality test, it will help you understand what the PCM looks for before setting the code.Possible sources of strong RFI are the alternator, Battery cables corroded, fuel pump faulty, and any other wire running next to the returning wiring harness, the return signal from the OSS signal is tied to your transmission solenoid, TSS, and a few other electrical systems, any of them will send an unwanted voltage that can interfere with the signal.

Jul 30, 2009 | 2001 Ford F350 Super Duty SuperCab

1 Answer

2001 ford escape check engine light possible failed speed sensor


Yes. Replace the output speed sensor on the transmission.

May 13, 2009 | 2001 Ford Escape

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