Having problems with your 1993 GMC Sierra K1500 ?

Speedo stopped working last night. Stuck in first!

\015 My question has 2 parts. Is my truck equipped with a 700r4 or a 4l60? And second will the speedo not working cause it to not shift? Truck has a tranny that has about 1800 miles since rebuild. Was working fine till the speedo stopped working!\015 Posted / edited by AnonymousUser on : 18-12-2017

Answers :

Your Trans should be the 4L60. If your speedometer quits working and the truck won't shift out of 1st gear, the "Speed Sensor" is probably bad or the wiring is bad where it plugs into the sensor. The sensor will be towards the back of the trans or on the tail shaft. An easy way to test if the wiring is bad at the plug is to pull on the wire 3" or 4" from the plug and watch closely to see if it stretches. If there is any stretch the wire inside the plastic sheath is broken.
Repair Help & Product Troubleshooting for 1993 GMC Sierra K1500

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0107 seconds