No spark?

2007 CHEVROLET COBALT
168,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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RUSSTY
  • MEMBER
  • 1 POST
Have compression.
No spark no codes.
Tachometer worked.
Now it doesn't.
I suspect crank sensor.
Jul 24, 2022 at 5:36 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

I agree with you. If you have no spark and the tach isn't moving, the first suspect is the crankshaft position sensor.

Here is a link that explains in general how to replace one:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

If you look below, I attached the directions specific to your vehicle. On this engine, you will need to remove the starter motor to access the sensor.

Let me know if this helps or if you have other questions.

Take care,

joe

See pics below.
Jul 24, 2022 at 10:39 PM