1993 Camry speedometer problem.

[Jim.]

The speedometer in my 1993 Toyota Camry read much higher than the actual speed when I first get in the car to drive it in the morning. It stays like that for 1/2 hour to 1 hour of driving.

After that, it settles down to at least approximately the correct reading, using my tachometer as a second speed indicator.

Can someone advise what might be going wrong with it? I don't even know if it electronic or cable driven. I cannot find a cable, so I'm assuming it is electronic.

My first suspicion is that it has a faulty capacitor or two. They warm up and then stop leaking.

Before I pull it out of the dash, I would be interested in reading if someone else knows about these, or has had the same problem.

Jim.

[campbeam]

Following YouTube video URL may be applicable. I have just looked at the opening and some of the comments. Hope this is of some assistance.

https://www.youtube.com/watch?v=LbPCbuzaG4o

 

[Jim.]

Thanks campbeam.

I suspect that is the problem. Heats up, then comes good.

I will post back after my investigation.

Edit: I found the sensor. Easy to get at. Now I have to find a new one.

 

 

Jim.

Edited June 23, 2019 by Jim.

[Jim.]

When time permits, I am going to remove mine and see how it works and if it might be serviceable.