speedometer quits every once in a while

[edman1000]

Anybody got any ides?
'96 4cyl 4x4 stick - I'll be driving along and the speedometer just drops to 0. then It'll start working again the next time I drive???

 

[edman1000]

ok been a while, still doing it!

 

[Wicked_Sludge]

most likely a bad vehicle speed sensor (VSS). located in the rear differential, right on top of the hump.

 

[edman1000]

In the rear diff? Doesnt it pick up the speed in the tranny? I swapped out the abs diff for a posi unit out of my Capri. you think thats the prob?

 

[dougs3.0L98]

mine did it too. i took the gauges out and cleaned all the connections. works fine now!

mine would stop/start working when i would punch the dash....

 

[Wicked_Sludge]

you know, it might be the one at the trans case...i cant remember.

i guess you could unplug it and move the truck....if the speedo doesnt work at all then you'll know.

 

[edman1000]

Yeah, on the rear diff I think its for the ABS sensor not the speedo.


I havnt tried punching the dash yet, I guess I'll just pull out the guages and see what I got.

 

[mudflp200s]

speedo prob

some of those electro speedometers reset if you turn them off a while then turn them on...why?...i don't know...maybe it re-boots the computer?...

 

[mudflp200s]

Old-style speedometer?

If it has those little wheels that go round and round, maybe it needs some greece in the cable???

 

[Wicked_Sludge]

his speedometer is electronic, not cable driven.