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1984 dodge speedometer fluctuates wildly. Needle bounces wildly. Odometer and cruise work.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1991 Dodge Daytona Speedometer and Odometer not working.

I had the same problem with my 90 daytona. The tach and the speedometer would work intermitantly. I took the whole gauge cluster out, and heated all the soldering with a solder gun to reflow the connections. It seems that this is a common problem with the connections cracking. You may not be able to see the cracks in the solder.

Posted on Oct 31, 2008

  • 26 Answers

SOURCE: 1995 honda accord speedometer and odometer not working

Sounds like either your speedometer cable, your nylon gear on the side of the tranny where the cable ties in, or the odometer itself is shot. One of those three will set you straight. If you are able, remove the cluster, take the cable off the back, and pull it out of the sheath. You will see if its broken or not from there. If not, slide it back into the sheath, then you have to find out where the sheath meets the tranny, and pull it off of there. Then, you can get someone else to watch the speedo as you turn the cable from the bottom. If it works, great, if not, then its your cluster/odometer/speedo. If it does work, the small gear in the transmission is shot.

Posted on Feb 14, 2009

STEVIE_N_24
  • 147 Answers

SOURCE: speedometer not working on my 2005 kia sorento

Probably bad vss (vehicle speed sensor). No Cruise operation without speed sensor input to engine control module.

Posted on Mar 29, 2009

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

Outofworkjoe
  • 216 Answers

SOURCE: I'm having a problem with my 1990 Volvo 740's

Check the connection at the speed o sensor. It's in the differential cover, about 3" above the filler plug. Be sure it's mechanically secure, and check the contacts (both sensor and connector) for signs of corrosion or oxidation. As much as possible, examine the harness for any signs of a break or tear, or for signs the wire might have been cut. If it's not wiring, then it's either the sensor or the speedometer head (which is electronic). Possibly, the power supplied to the speedo head where it's mounted in the dash cluster is intermittent. The speedometer in my 745 with 160K has been jumping around a little on the highway. The cruise control would try to follow the erratic speedometer, then disengage. I suspected a broken wire at the sending unit. What I found was a burnt wire at the sending unit. The wire had grounded out on Volvo's safety wire. I suspect that the safety wire slowly eat through the insulation on the wiring, causing it to ground out. The plug was melted and an inch or so of insulation on the green stripe wire. Make sure the safety wire is not cutting into the two wires on the sending unit at the back of your rear end. [Response: Scott] Check the instrument cluster grounds under the dash and in the right footwell. In 88 there were some 700 series cars that would register up to 60 mph while sitting still and the grounding problem was the cause.

Posted on Jun 29, 2009

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1 Answer

The speedometer bounces and sometimes does'nt work at all, and odometer hasn't changed sametime


Right off the bat it sounds like a broken speedometer cable. As the cable spins from the gearing of the transmission it is clicking against the broken part of the cable running to the speedometer gauge. The frictional clicking is what's causing your needle to bounce around. Since the cable is probably broken and cannot spin long enough to move the odometer numbers. Raise your vehicle safely and disconnect the speedometer from the transmission. then see if you can pull the cable out of the housing. If only a portion of the cable comes out, then that should answer your question. Be careful when you disconnect the speedometer cable from the transmission as not to lose any small pieces that cause the drive mechanism to work.

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There is a plastic helical gear in the transmission, where the speedometer cable attaches. Start there. Usually 2-3 bolts that hold it in, when it comes out, some fluid will escape. Check that gear for wear, and broken splines. Then follow the cable up to the cruise control module. Some cars route the speedometer cable to the cruise control transducer, then to the firewall to the instrument cluster. That transducer goes bad. Thats what happened on my 81 olds. The speedometer would bounce around at speeds less than 15 mph. I replaced that transducer and it is steady now.

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the cylindrical part may be a cruse control servo . the problem is more the likly in the cruse servo . thjere are gears in there witch wear out . you could buy a sppedo cable for a car with our cruise and by pass it . or replace the cruse servo

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1 Answer

1991 Dodge Daytona Speedometer and Odometer not working.


I had the same problem with my 90 daytona. The tach and the speedometer would work intermitantly. I took the whole gauge cluster out, and heated all the soldering with a solder gun to reflow the connections. It seems that this is a common problem with the connections cracking. You may not be able to see the cracks in the solder.

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1 Answer

Speedometer erratic


I have the same problem with my car..It is the speedo in the car that is bad...check into getting that replaced it should work fine after that.

Jul 22, 2008 | 1995 Mercury Sable

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