Speedo interment not working and Odometer lites diming
When i start my car for the first time in the afternoon the speedo
doesnt work. then after i stop and start again it works. A nd then
recently the Odometer , half the numbers are going dim?? Anybody run
into this yet??
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most old cars have a speedo cable.
is the odometer dead too. (we need that answer now)
there are 3 class evolutionary systems.
electric sender to cluster
and sender to PCM and PCM drives cluster.
but honda does this on diffr, dates than most cars. (i learned)
so lets do that. we login to alldata.com and look , so can you at any time,
once a month i do random cars.
what engine, sometimes this varies by engine, and trans.
neither stated so Ill toss coin each time.
has electronic (hall) speed sensor VSS and runs
engine, cruise. odometer and cluster.
the 96 has no speedo cable, and works in modern mode, very advance for this time
also any scan tool on earth fits the PCM scan port
and if VSS is dead, it tells you that with a DTC , vss dead.
saving all that work wondering why it dont work.
PCM must see it work
if only cluster fails, and both speedo and odometer then its bad.
if only speedo fails but not odometer , then speedo meter is bad.
its that easy.
the cable has snapped
or the gear drive at bottom end bad or fell loose?
the top end of cable fell off.
usually the speedo head is good if both odometer and speedo fail at same time (its 2 differnent meters in sided cluster)
If the odometer doesn't work, then you have a bad speedometer head assembly. The speedo head is a microprocessor that gathers the info coming from the vehicle speed sensor and translates it for you on the speedo and the odometer. If one is working, but the other isn't, then it is getting the VSS signal, it just isn't processing it right. You have to replace the brake light switch(It would have been wet with brake fluid from having done brake jobs)
would change the ECU with the chip from the key from a car in scrapyard ,but before you get carried away try another seperate earth on the back of the speedo printed circuit board ,i wouldnt mind betting this is your problem
the Speedo in your car is electronic, the problem is the tiny motor that moves the needle is most likely defective, there are no parts for the Speedoavailable to the consumer from Ford, you must remove the Speedo and have it repaired by a authorized Speedo repair shop. here is a link to a good one I know about. http://dnaspeedometers.com/
Sounds like either your speedometer cable, your nylon gear on the side of the tranny where the cable ties in, or the odometer itself is shot. One of those three will set you straight. If you are able, remove the cluster, take the cable off the back, and pull it out of the sheath. You will see if its broken or not from there. If not, slide it back into the sheath, then you have to find out where the sheath meets the tranny, and pull it off of there. Then, you can get someone else to watch the speedo as you turn the cable from the bottom. If it works, great, if not, then its your cluster/odometer/speedo. If it does work, the small gear in the transmission is shot.