2001 Chrysler 300M Logo
brenton lucas Posted on Jun 27, 2012

Code p0720 sometimes car want change out of 2nd gear, speedodometer stops working, and then it'll start working fine

1 Answer

Anonymous

Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

Problem Solver:

An expert who has answered 5 questions.

  • Contributor 5 Answers
  • Posted on Feb 25, 2013
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

New Friend:

An expert that has 1 follower.

Problem Solver:

An expert who has answered 5 questions.

Joined: Feb 24, 2013
Answers
5
Questions
2
Helped
1592
Points
5

I looked up the code in the Haynes Repair Manual due to having the same car this is what it says for your code-P0720 Low Output SPD sensor RPM, Above 15 MPH. The relationship between the Output Shaft Speed Sensor and vehicle speed is not within acceptable limits.

4 Related Answers

jandjbtx

  • 32 Answers
  • Posted on Apr 22, 2009

SOURCE: car will be running just fine i ll stop to get gas

Sounds like the problem is with the battery, probably bad connections with the cables. Clean the cables and posts. If this does not do it, you probably need a new battery. Other possibilities are bad starter brushes or a bad starter solenoid.

Ad

Anonymous

  • 1392 Answers
  • Posted on May 31, 2009

SOURCE: 94 Lebaron GTC 2nd gear limp in mode

It has an electical problem. You need to take it to the dealership if you want it diagnosed correctly. It will need to be in limp in, and don't turn the car off as this is clearing the code out of the computer. Leave it running, tell the service advisor your situation and not to turn it off till someone can hook the scan tool to it. This will give them the cause of limp in, and should be able to be resolved after.

Robert Debison

  • 412 Answers
  • Posted on Sep 16, 2009

SOURCE: car wont upshift out of 2nd gear, sometimes when

it sounds like you have a faulty ignition switch

Anonymous

  • 7353 Answers
  • Posted on Aug 25, 2011

SOURCE: I have a 2001 Chrysler 300m... And after a few

its in LIMP MODE because there is a trans problem, have a trans shop check it out. ASAP.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

I have a 2005 Dodge Stratus that sometimes will shift into 2nd gear and sometimes won't. The codes read P0700 and P0888.

Question edited for clarity. Code are P-Zero, not P-Oh (letter)

This is a well documented issue. See the articles and video.

https://www.google.com/search?q=Dodge+Stratus+P0700+and+P0888

..
0helpful
1answer

OBD 2 ERROR CODE P0720

Here's a link to your code P0720. P0720 OBD II Trouble Code
0helpful
1answer

Code P0705 & P0715

Code 705 is for the transmission range selector problem, and code 715 is a problem with the input speed sensor circuit.
You'll need someone to check these two sensors to proceed.
0helpful
1answer

I have an 98 montero sport ls v6 3.0 auto 4x4. It starts up good and runs great but it won't shift out of 2nd gear! Sometimes it may take a few seconds to kick into 1st gear after I've taken off...

Probably the oil filter is blocked.
Warm it all up with a 30-45 minute drive & then change the oil in the gearbox whilst it's still hot. Make sure you also change or thoroughly clean the gearbox oil filter at the same time.
After that you're looking at the tension bands & the dog-clutches, which are a specialist mechanics job.
0helpful
1answer

Error code P0720

The P0720 is a transmission code (sorry...I couldn't find a complete code description). Take it to the dealer or a good ****** shop.

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.
0helpful
2answers

96 chrysler town country wont shift into third gear

If it starts out in 2nd gear & dosn't shift, it is probably in a limp in mode. the system will need to be diagnosed & computer satisfied. sometimes disconnecting the battery will reset the computer & allow the trans to shift untill it sees the problem again. I recomend getting the codes read first so the memory will not be erased.
1helpful
2answers

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
3helpful
1answer

Hard Shift to 2nd Gear/next gear

Your going to have to get your car scaned for codes. Auto Zone can scan it for you for free and tell your what you'll need to fix it.
It sound's like your VSS Sensor (speed sensor) is not working and your ECM is not getting the signal from the transmission to know when to shift the gears.
Becareful not to burn out the transmission till you get it fixed. The sensor it self is not that expansive and to replace it is easy and takes about 30 min to do.
If you get a P0720 or a P0722 code, then it's your speed sensor. It's an esy fix and Auto Zone can give you instrction on how to change it. 
Good luck, it takes about 30 min to change and hope this helps.
0helpful
1answer

Fault code P0720

code po720 is the output speed sensor malfunction
Not finding what you are looking for?

583 views

Ask a Question

Usually answered in minutes!

Top Chrysler Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

john h

Level 3 Expert

29494 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...