Speedometer not working - speedo drive gear

Old September 23rd, 2018, 06:28 PM
Registered User
Thread Starter
Join Date: May 2018
Posts: 54
Speedometer not working - speedo drive gear

My speedometer stopped working suddenly yesterday.
I am able to turn the cable and see the speedometer as I do it.

Thus the drive speedo gear or the inner shaft speed gear is likely bad right?

What would cause either of these 2 gears to strip? I did shift down to low yesterday at low 10mph speed.... gently D to 2nd and then 2nd to Low. (TH350 automatic) . Driving in low seemed a little rough but cant tell for sure.

I dont want to go changing a plastic gear for it to just strip again if there is something causing this, that I have another issue.

Thanks in advance for input.
Via3d is offline  
Old September 23rd, 2018, 07:33 PM
same but different
don71's Avatar
Join Date: Jun 2007
Location: Central Missouri
Posts: 2,413
The cable is stamped into a square shape and fits in the gear. I'd suspect that the female end of the driven gear has gotten worn more so than a stripped gears scenario. But it could happen. You're going to have to have a look and see. Pretty easy to repair....er replace.
don71 is online now  
Old September 23rd, 2018, 10:42 PM
Old(s) Fart
joe_padavano's Avatar
Join Date: Mar 2007
Location: Northern VA
Posts: 31,741
Actually the root cause is usually a bad speedo cable. This causes excessive drag on the gears, and one or both wear out.
joe_padavano is offline  
Related Topics
Thread Starter
Last Post
November 3rd, 2016 06:07 AM
Uncle Hulka
April 21st, 2014 05:37 PM
Transmission and Driveline
September 23rd, 2013 01:47 PM
November 18th, 2012 10:51 AM
March 18th, 2010 11:31 PM

Thread Tools
Search this Thread
Quick Reply: Speedometer not working - speedo drive gear

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.