Crank sensor

2007 CHEVROLET COBALT
185,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
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TYPRESTON1996
  • MEMBER
  • 1 POST
I’ve had the crank and cam sensor replaced. rough idle, no tachometer and hiccup like shifting air flow problem. not sure what else to try.
May 1, 2019 at 8:35 AM
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SCGRANTURISMO
  • ✓ASE Certified Mechanic
  • 4,897 POSTS
  • ASE Certified Mechanic
Hello,

This could be a problem with G #103 in the left front of your vehicle's engine compartment under the left headlight. Please check this ground ensuring that it is clean, corrosion free, tight, and making good metal to metal contact. I have included location information for this ground in the diagrams down below for you as well. Please get back to us with what you are able to find out.

Thanks,
Alex
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May 1, 2019 at 9:08 AM
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