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 Dan Your Own Question
Dan
Dan, Technician
Category: GM
Satisfied Customers: 23589
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
17871496
Type Your GM Question Here...
Dan is online now
A new question is answered every 9 seconds

Crankshaft position sensor is bad if my check engine light is not on?

Resolved Question:

How do I know if my crankshaft position sensor is bad if my check engine light is not on?
Submitted: 4 years ago.
Category: GM
Expert:  Dan replied 4 years ago.
Welcome to JustAnswer, my name is XXXXX XXXXX I'm here to help get your problem resolved. Ask follow up questions, thanks. Crank sensor will usaully cause a no start, not make it run rough...I would remove each spark plug to see if all wires have good spark..If not replace coil that spark plug wire with no/weak spark leads to. Let me know if you have questions, thanks.
Customer: replied 4 years ago.
If the coils are functioning what would you look at next?
Expert:  Dan replied 4 years ago.
I would check injector resistance next to see if one is out of spec but coils are most common problem. Let me know if you run into questions, you can reply at any time even after you click accept without additional fee's. Thanks.
Dan and other GM Specialists are ready to help you

Related GM Questions