I'm a girl-know very little about cars...my speedometer doesn't always work, sometimes does, sometimes flickers, sometimes the check engine light will come on when it doesn't work. I don't know if there is some kind of sensor on the engine or what?? When the speedometer doesn't work, neither does the odometer. Everything else seems to work ok, or as ok a 93 civic can work..any help/thought would be appreciated!!

 

its your speed sensor, it probably got wet.

 

ah, guess I will have to take it in, thanks

 

it probably isnt broken. this happened to me over this last weekend cause of all the rain. all i did was clean out the corrosion in there and dryed it off, plugged it back in and it was fine. make sure to get a seal to keep water out of it.

 

Can some one post a parts diagram of where the sensor is?

 

the speed sensor is near the transmission near the throttle body its black

it looks like dis
http://static.am-autoparts.com/item/e174a0f71d.jpg

 

 

Thanks guys I got it. I had similar symptoms as the OP. My speedometer would work fine for a few minutes and then just drop to zero.

I ordered THIS. It cost about 20 bucks after shipping and fixed the problem.

 

well it seemed fine for a bit but now its back to the same old behavior. Does any one else have any tips on what to check?

 

check for corosion inside the plug. My last car was so bad i had to soder in a new plug onto the wiring harness

 

There is no corrosion that I can see. Any other ideas?

 

buy a new one lol i just picked one up for 5 bucks. It's brand new too!