I have a problem with my MPH gauge, All of my other gauges work but the MPH one does not.
Afterm driving for a while the check engine light comes on and then after about 5 minutes it goes off and the MPH gauge starts working.
It is almost like it needs to hear up first?

I have already replaced the cluster and the same thing is happening.

Does anyone know how to fix this?

 

i would check your vss its most likely the culprit...does your odometer work?

 

Yes, the odometer works fine,
Just not the speedometer

 

Looks like the odometer is not working after all,
This is starting to be a real problem.

 

humm i have that problem too. Do u still have a plastic push button for the tripometer? Push it in a few times, hear like a gear noise? Now drive the car. Speedo should work. If the piece is broken us a paper clip, toothpick or what ever. Im not sure why mine does that, even didnt work after i replaced the cluster. Shoulds like the same deal on both our cars, espically since they are so close in age.

 

Seems like my issue is the same as yours,
I have put in 2 different gauge clusters and still have the problem.
I think it might be the sending unit that makes the gauges work

 

Ok what about just the speedometer cable altogether? Could it have got damaged somehow..i dont no just an idea

Only reason im saying this is because i just learned to replace a speedomoter cable and did it today...but that was because my speedomoter needle keep bouncing all over the place and making wierd nosies but i im not sure if just changing it would fix ur problem

 

Seems like that is the next step for me,
I just don't know how to change it because I have never dont it before.
Any help?
:lala:

 

your 92 doesnt have a speedo cable. When u drive with the heat off windows up radio off, can u hear a noise from the speedo, like a clicking?

 

I use to,
I think it has stopped but it use to make a kind of a grinding or clicking noise kinda like gears rotating

 

yup it only does it when the speedo works. try what i said about the tripometer, its a good temp fix, or permant, i have to mess with mine maybe once every 2 weeks