Hi, everyone.  Getting ready for my next project and wanted a sounding board before I get started.  My speedometer works perfectly, but the mileage counting odometer hasn't worked since I owned car.  Trip reset has never worked either.  Before I spend a day taking things apart, has anyone else had this and if so, what was the cause?

If it's something as simple as cleaning/lubricating or tightening a contact, then fine...but if I should start looking for a new cluster then better I find out now.

Let me know what you think and thanks!

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Take it apart and see what you see and if you think  you can repair it based on what  you see is broken in there 

The worst that can happen—- is that you need a new used working unit which I think could be the way to go in the end 

I do know from my own experience you can set the mileage at that point to what ever you would like it to be while having it apart 

Best to be prepared to do any other task that needs doing once the dash cover comes off - radio work and front speaker replacement  - bulb replacement - defroster ducked tubing -gauge  replacement —  or what ever else 


Yes, will do, thanks.

Lee, The gear mechanism for the odometer & trip odomenter is probably damaged or come apart. There's really is no real way to get to it and repair or replace without removing the speedo head unit. I have posted a couple of pictures of one out to show what the head unit looks like from the rear. It has been a while since I took one apart but remember the odometer assembly comes out and apart really easy once speedo head unit is out. I am sure you know this, but to cover the bases, to use the trip odomenter  you have to firmly press in on the button at base of dash.  I would push in firmly and turn several times to see if you see any movement in the trip odometer dial?  Not an easy task to get to, and might be something you want to attack when there is something else you want to tackle behind the dash.

If you do end up removing, repairing, replacing I would set the main odometer as accurately as possible to your knowledge. It is never a good idea on these cars with only 5 digits to show some low number unless the car actually has the low mileage. I am sort of proud that my 64 CDV has about 163K miles on it... you will even hear me brag about it, especially next to the car where the owner is claiming 63K miles and looks in about 1/2" the condition as mine! :-)

This is really helpful to see these photos before I start work - thanks Jason!  Will probably tackle next weekend when the frigid weather up here lets up a bit.  The first time I tried pushing in and turning the reset knob the numbers flinched a little but then stopped, and I've never been able to get them to budge again.  Feels like something in there just isn't making contact, but I guess I'll find out!  


It is really not at all  fair to compare your Cadillac CDV to any other 64 Cadillac on this planet 

The blood sweat tears—- and your knowledge of the subject just makes your Cadillac CDV entirely in a class by itself 

Not to mention the endless list of pristine parts that have gone into the car and those in the wings to be installed as needed for the next 100 years 

I do understand your southern humble approach —Always—- but do get over it !!!!!!!!

YOUR CLASSIC ANTIQUE 1964 CDV ——-IS TO DIE FOR —just because it’s yours 

Gotta Love You  the more I get to know you my friend 




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