Question about 1998 Plymouth Neon

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Speedometer in my 1998 plymouth neon is not working after i replaced the speed sensor and i cant find the problem

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Check speed sensor on transmission

Posted on May 13, 2009


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Where is the speedometer on a 1998 dodge neon

The speedometer is in the instrument cluster. The speed sensor, I suspect this is your true question, is located in the transmission. If you look down, I know its difficult to see, where the dipstick tube goes into the transmission you will see a big electrical connector just to the right as you standing in front of the car. You will see the two rubber cooler hoses right above it. There will be a white plastic piece with a two wire connector right under those. That is the input speed sensor. This is not the part that needs to be replaced. The output speed sensors, the part that sends the speed signal to the computer, looks exactly like the input speed sensor but is located about 6-8" more to the right of the input speed sensor. Sometimes it is easier to spot from under the car.

If that sensor is bad it should flag a P0740 code in the pcm letting you know there are transmission codes stored in the TCM. A higher end scan tool (not a code reader) will be needed to get the codes from the TCM (transmission control module)

Hope that helps.

I’m happy to assist further over the phone at

Oct 02, 2014 | 1998 Dodge Neon

1 Answer

Speedometer not working on my 1998 Plymouth Neon what could it be?

Replace the speed sensor and your problem would be solved

Mar 27, 2012 | 1998 Plymouth Neon

1 Answer

Just purchased 1998 neon sport speedometer jumping and not giving correct odometer readings

Check the transmission connection first. And then check for a good ground to your speedometer.

Jul 01, 2011 | 1998 Plymouth Neon

2 Answers

The speedometer is jumping up and down why?

your vehicle speed sensor malfunction is intermittently working you should replace the sensor

Mar 19, 2011 | 1998 Dodge Neon

2 Answers

Speedometer and odometer both are not working. if i hit a bump my speedometer might work but not all the time

This sounds like your speed sensor may be bad. It's located usually toward the top of the transmission. Also make sure the cabling going to the sensor itself is tight and the connections are clean. The speed sensor shouldn't cost any more than around $20 and is available at just about every auto parts store.

I hope this helps! :)

Mar 09, 2010 | 1997 Plymouth Neon

1 Answer

Just my speedometer and odometer does not work

I think if you pull the cluster unbolt the curcuit board from it and look at sordering at the plugins there will be very small cracks in the ones an the ends look real close just take a sorder iron melt it back Nathan

Aug 24, 2009 | 1995 Plymouth Neon

1 Answer

Speed control sensor

No speed control sensor on your vehicle. What is the reason u with to replace it? Speedometer not working? Vehicle not shifting?

Jul 26, 2008 | 1999 Plymouth Voyager

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