Question about 2001 Nissan Maxima

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Have replaced speed sensor and speedometer, but speedometer still does not work. Do you have any suggestions on what to try next?

Engine idles rough when cold and shifts eratically. Check engine light is on. It says replace speed sensor.

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  • Master
  • 603 Answers

There are usually TWO speed sensors on modern day vehicles, INPUT and OUTPUT. You may have changed one of these , but you may need to change the other. Ask your parts supplier, they will help you with the other. GOOD LUCK FRIEND.

Posted on Nov 08, 2014

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Check Engine Light 1996 Nissan Maxima

The best way is to use a scan tool to clear the codes, that will turn off the light, also disconnecting the battery over night may work, but no completely sure about that, it varies from year to year.

Posted on Sep 23, 2008

  • 2 Answers

SOURCE: 2003 nissan altima 2.5s transmission rough shift

Probably sensors! I have already replaced the crankshaft positioning sensor once, nissan replaced it once under recall and now it is bad again! Plus my speed sensor is bad too! Go to any part store and get diagnostic test ran, it will tell what sensors are bad.

Posted on Oct 02, 2008

  • 3 Answers

SOURCE: 2003 Nissan Altima 2.5S, Check Engine Light Problem.

this problem could be caused by the mass air flow censor, i had the same problem with my car. it is really pricey at the dealer so you might want to check elsewhere for this part. I found one at a scrap yard for 85% less that the dealer and i also got life time warranty, the dealer does not offer any warranty on this part.

Posted on Oct 22, 2008

hiseyj
  • 99 Answers

SOURCE: 1996 Nissan 200SX Speed Sensor

It is possible that this code can be caused by the speedometer head itself. The signal from the speed sensor is processed in the speedometer and then sent to the ECM. Check the two screws on the back of the speedometer to see if they are loose. If so retighten and drive to see if the check engine light comes back on. If they are tight, replace the speedometer assembly( I think you gave to purchase the entire meter assembly). If the light still comes on, which is unlikely, you will need to check the wire going to the ECM.

Posted on Dec 01, 2008

Molson02536
  • 3854 Answers

SOURCE: Speedometer/odometer/cruise control isn't working.

It's your speed sensor at the transfercase on the drivers side i believe. Check the wire and clip to the sensor for any break or loose contacts. 
Easy fix and is about a 30 min job to do with simple tools. Un-clip the wire conntection, remove the retainer bolt and slide and sensor out. To install just do everything in reverse and add transmisson oil if needed.

Most of the time, it's going to be the sensor. Keep in mind that there are two sensor's so make sure it's the one on the output shaft at the transfercase. The other one is closer to the front of the transmission on the same side with is the input Volosity speed sensor.
If it was your ABS sensor, you ABS light would come on in your dash.
Good luck and hope this helps

Posted on Apr 23, 2009

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Rough idle in drive, correct rpm


Car idle is rough Inspection Service & Cost A rough idling engine can be caused by a number of issues, some of them are serious while others tend to be minor, but the symptoms remain pretty much the same. The car will feel rough and bouncy when the engine is running. The car will also idle below its regular speed, display inconsistent RPMs and may produce a shaking, skipping or slipping sound when the vehicle is running.
While a rough idling engine may seem to be a simple inconvenience it often indicates a deeper problem within the engine. The vehicle should be inspected and repaired as soon as possible because small problems have a way of turning into expensive repairs. How this system works: The idle speed of an engine is basically the rotational speed the engine runs on when it is un-coupled from the drivetrain and the throttle pedal is not being depressed. The idle speed is measured in the revolutions per minute of the crankshaft.
When an engine is running at idle speed it generates enough power to smoothly operate equipment such as the water pump, alternator, and power steering but not enough power to move the vehicle itself. A passenger car will usually idle between 600 RPMs and 1000 RPMs. A properly functioning idle should run smoothly without skipping or slipping. Common reasons for this to happen:
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Sep 28, 2016 | AC Cars & Trucks

1 Answer

Replaced input and output speed sensors for erratic speedometer. Now the speedometer remains at 0. Anyone have a suggestion on what else could be wrong?


input and out put speed sensors tell the TCM and the ECM the difference between engine rpms and transmission input roms so that the correct gear ratio can be selected
A speedo sensor reads the out put shaft (drive line ) shaft and refers to road speed for speed and odometer readings and to calculate the fuel consumption rate
it is possible that you have replaced the wrong sensor
Talk with an accredited transmission specialist shop and have the problem diagnosed

Aug 10, 2015 | 2003 Dodge Neon

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A/c doesn't work, temp gauge doesn't work, speedometer doesn't work until it gets to 30 mph, and rough idle in the mornings. could all this be the result of a bad computer?


Very unlikely that it would be a computer problem, it does not control the A/C, or temp gauge. Sounds like multiple problems. A/C could be just low on Freon, if pressure is low, it will not turn on. Temp gauge and rough idle may be related, if temp sensor is bad, the computer wont know the engine temperature and thus not mix the fuel correctly. But there are many things that can cause rough cold engine idle, like dirty throttle plate, or bad idle air control valve. You did not say what engine you have, so this is just general information.

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I have a 1993 olds cutlass ciera.. the speedometer was working erraticly and i replaced the speed sensor and now the engine races and i have to keep foot on the brake and the speedometer still not wor


Are you sure you replaced the speed sensor in the transmission ?
You could try unplugging the sensor to see if that affects the engine speed.
It sounds like you disconnected a vac hose or a wiring harness some where. A large vac leak would cause the engine to rev high and so could a wiring problem.

Jan 10, 2013 | 1989 Oldsmobile Cutlass Ciera

1 Answer

Service engine light is on, speedometer jumps back & forth, idles rough at stop, radio clock light dims & goes off. Just replaced alternator & car ran fine for about 4 days...then, all these...


Hi:

I am not sure if everything is related, but here are a few suggestions:

Have an auto parts store download your code from the service engile light,and see what system it is pointing too. They usually will do this for free.

Your speedometer is driven off a speed sensor, in the top of the transmission.

not sure about your clock dimming, but I would have your new alternator checked out, too, and make sure it is still charging as it should.

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I cleared this by replacing the sensor mounted on top of the rear differential housing.

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