The meters are rolling but the speedometer works on my 97 f150 what is the cause of this??

 

Meters aren't rolling I meant to say

 

VSS gear? But, if your speedo needle is working that would mean the VSS gear is okay?

Hummm... Since it's a 97, it's got the actual rotary (analog) odo/trip, but no actual 'cable' to the gauge like in the old days...

The VSS gear sends an electric signal to the computer which sends it to the cluster via the wire harnesses..

Not knowing which wire goes there, it's hard to say what it could be, but more than likely, it's something with the cluster itself...

Good luck!

Mitch

 

Would it be easier to go to a junk yard and pull a new cluster off of another 97 and install it?

 

But the odometer miles won't be the same

 

It is probably the worm gear, or the gears are just binded up. Mine did the same thing so I pulled out the dash and tore it apart. It becomes a pretty delicate process, my gears were all perfectly fine so i took the small motor out and spun it, and made sure the other gears moved freely. I assembled it all back together and once I put it back in it worked.

The worm gear though is the one attached to the motor powering the odometer, and is made of plastic. It is a common problem in all Ford's with the rolling odometers.

Here's instructions on it from an explorer, but it is basically the same:

http://m.odometergears.com/howto/FOR...EPLACEMENT.pdf

There's also a youtube video of a guy taking it apart from his ranger. He shows you how to get to the worm gear, but it is a tad different.

 

Also, Mitch is correct. If it was the VSS the speedometer would not be working as well.

 

Awesome thanks I'll check it out. I noticed it didn't work after I reset my trip meter when I filled up. It rolled back to zero and then never turned I was like uhm what? Haha

 

I have a 98 with simular intermittent odometer issues. I can get the odometer rolling again by pushing the reset several times but figured it will soon fail completely. Was thinking of getting an ebay or junkyard speedo but wondered if they are linked to the vin# through the ecm or something.
Mike

 

Not on a 98 model. You could just order the worm gear and swap that in and be done with it, though.

http://www.ebay.com/itm/94-99-Odomet...-/160949541756


34 sold? You are not alone, I reckon.

 

Thanks for the link, funny Ford would go through the trouble to use a motor to turn a mechanical odometer gear.
Mike

 

After all the BS problems with the digital PSOM in the '92-'96 that you can't fix and lose your mileage, I'll take changing a lil plastic gear.



Adrianspeeder

 

90mph, 1600 rpm and getting great mileage. ....

 

I'd like them rear axle gears then. I think the last time I touched 90, my 4.2L was spinning about 2300 RPMs. :\

 

That calculates out to 2.50 gears with 33 inch tires........