Question about 2002 Hyundai XG350

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Po720 slams into gear replaced input and output sensors on tranny.....

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  • Hyundai Master
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Code p0720 refers to out put shaft speed (OSS) sensor-circuit malfunction===causes wiring OSS sensor --ECM/TCM
Having replace both sensors means that you still not have fixed the fault. Check the wiring and connectors for moisture an damaged pins and the TCM plays a big part in your problem ( transmission control module)

Posted on Dec 31, 2013

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Posted on Jan 02, 2017

michigan man
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SOURCE: replacing output speed sensor on 2002 sonata

try autozone.com to see if they have your car listed for diagrams pictures and step by step instructions if your car is not listed then try your local library they have all the car manuals and even copy them for you

Posted on Mar 20, 2009

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The output shaft sensor is where the TCM gets its info. And what the speedometer runs off of. It is best to have a diagnostic ran on this first. But shooting from the hip, I would go for the output sensor.

Jul 03, 2011 | Plymouth Voyager Cars & Trucks

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Po720 code and po733 code plus leaking oil


P0720-OUTPUT SPEED SENSOR ERROR

WHEN MONITORED
The transmission gear ratio is monitored continuously while the transmission is in gear.

SET CONDITION
If there is an excessive change in output RPM in any gear. This DTC can take up to five minutes of problem identification before illuminating the M.I.L.

POSSIBLE CAUSES[*]Output speed sensor signal circuit open[*]Speed sensor ground circuit open[*]Output speed sensor signal circuit short to ground[*]Speed sensor ground circuit short to ground[*]Output speed sensor signal circuit short to voltage[*]Speed sensor ground circuit short to voltage[*]Output speed sensor[*Powertrain Control Module (PCM)[*]Intermittent wiring and connectorsi cen get you a full flow chart on how to check it out if you wish

p0733 Gear 3 Incorrect ratio

Jan 03, 2011 | Chrysler Voyager Cars & Trucks

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I have a 2001 f350 4x4 7.3 powerstroke with 250,000 miles! DTC codes showing are p0720, p0732,p0781,p1247,p1316. Need help! Hard to start unless heater cord plugged even in warm weather, rough idle, loss...


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Aug 18, 2010 | 2008 Ford F 250 Super Duty 4WD

1 Answer

I'm coming up with codes Po700, Po732, Po605, Po720 when I run a diagnostic on my Dodge Grand Caravan Sport, 3.3, 6cyl. Could the TCM (Transmission Control Module)be bad or it just need re-flashing?


I dont think reflashing will help this, the first thing that comes to mind is the output speed sensor, i would replace the sensor and reset the codes and go from there, the out put speed sensor can make all this codes come up, the po720 is the out sensor, when this goes bad the trany doesnt know when to shift gear at the right time so if it shifts at the wrong time you get the other codes like the po732 2nd gear error or po605 internal trans controller, replace the sensor first and see what happens after that, good luck and hope this helps.

Jul 07, 2010 | 2002 Dodge Durango

1 Answer

Intermitten po720 2001 maxima is the input and output the same do you think its the sensor , wiring or tcm or ecm


This code can be caused by all of the things you mentioned, plus a damaged parking pawl ring on the transmission. This is what the sensor reads. For my money, I'd try replacing the sensor. They are relatively cheap compared to the alternatives and Nissan sensors have a reputation for early failure.

Hope this helps,
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Jun 26, 2010 | 2001 Nissan Maxima

3 Answers

Ive been driving at 45mph twice now over the last four days and the car slams into third gear and wont come out, the problem goes away after i turn the caroff but the check engine light is on


I have this car and had the same problem. Trans slams int 3rd from 5th gear and wont come out. First Pull the codes out of he computer. My problem was solved by replacing both the input and output speed sensors on the transmission. Simple exterior sensor replacement. Good luck

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1 Answer

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check the speed sensor,the output sensor,and the input sensor on the tranny

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