How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Cat Man Your Own Question
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8672
Experience:  I am ASE Master Truck Certified.
Type Your Medium and Heavy Trucks Question Here...
Cat Man is online now
A new question is answered every 9 seconds

Speedo and Odom out.t a bump and it went dead. : No power to

Customer Question

Speedo and Odom out.hit a bump and it went dead.
JA: We'll do all we can to help. Tell me a bit more about what's going on so the Heavy Equipment Mechanic can help you best.
Customer: No power to speedo sensor. Where does power originate.
JA: Is there anything else important you think the Heavy Equipment Mechanic should know?
Customer: Have no power to speedo sensor.
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Heavy Equipment Mechanic about your situation and then connect you two.
Submitted: 10 months ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 10 months ago.

Thanks for asking your question. I will try and help you out.

The two wire vehicle speed sensor does not have power going to it. It is a passive sensor. An AC signal is generated from the sensor interfacing with the chopper wheel in the transmission. Most often I find the problem a ailed sensor or a break or short in the wiring that connects to the sensor.

Please reply back if you need more help or have more questions. I am happy to assist.

Related Medium and Heavy Trucks Questions