No spark?

2007 CHEVROLET COBALT

168,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC

RUSSTY

MEMBER
1 POST
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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

AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 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.

Images (Click to enlarge)

Jul 24, 2022 at 10:39 PM