1991 Volvo 740 "speedometer drops occasionally" Questions

Speedometer/Odometer Failure I'm guessing that this is the result of a bad speed sensor on the rear diff.; but if that is the case - I thought that the odometer would still function. I was wondering ...

drops to zero for no apparent reason. ... helping me resolving my speedometer problem on my 406 3.0 v6 1999. Peugeot 406 (1999 - 2004) - 00 2.0 intermittant fault Feb 10, 2010 Peugeot 106 (1991 - 2002

...speedometer will occasionally shoot from 0 so 120 (enitre speedometer) and then drop back down to 0. When the speedometer is not working the odometer also stops. All connections are firmly connected ...

...night. Got in this morning speedometer would go up to 40 occasionally then drop to 0. This afternoon check engine light came on. Where do I start? first find why your engine lit is on and go from ...

...speedometer drops to zero mph and cruise will then stop working. The "surge" is so bad that you can not drive with cruise on. 2.0 liter AEG.. automatic I would take a blind guess and sat the speedo ...

...speedometer works then drops to zero only occasionally leave well alone untill it packs up completely as it could be the head and if it is then it will cost quite a bit so leave well alone ,it could ...

...speedometer drops to zero or jumps erratically plus cruise control stops. This only happens occasionally when at highway speeds. Rarely in town. sounds like a bad speedo drive gear or speed sensor ...

...occasionally, wnen it stops and goes at traffic light, it's speed may dropped from 30 m/h to 0 within a couple of seconds as the speedometer showed that too. Now, this becomes pretty frequent while ...

...speedometer: not working but occasional sporadic movement to stick at reading 60 mph then drops back to 0 mph. Remote door locks: not working, rear door and glass opening: not working, cannot open ...

...drops to zero whilst driving, the car runs roughly at low revs. I don't want to replace the speedo if that isn't the real problem. Any ideas? Your problems sound like they are electrical, i would ...