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post #1 of 5 (permalink) Old 01-31-2018, 05:39 PM Thread Starter
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2006 Chevy Cobalt Will Not Start

Any help please. I parked my 2006 chevy cobalt and then went to move it and it will not start. All the dash lights up, radio on, etc. The only thing that doesn't move is my fuel gauge, it says empty but it is not empty. The anti-theft lights up and then clears like normal. When you turn the key, the starter does not click or crank. The fuel pump does start. When we jump started the starter, the car ran for 3 seconds and then turned back off. We have ruled out the battery and starter. We have checked all fuses and the only one blown was the air/sol fuse and it has been replaced. We replaced the ECM/TCM (#25) fuse even though it was good. We tried to use a code reader today and it only sends back no link. Tomorrow we plan on checking and cleaning all the ground wires. Any suggestions as what else we should check. We are thinking it has something to do with the signal between the BCM and starter.

Last edited by hdesimpe; 01-31-2018 at 05:43 PM.
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post #2 of 5 (permalink) Old 01-31-2018, 11:37 PM
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Did you check the big fuse in the trunk?

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post #3 of 5 (permalink) Old 02-01-2018, 03:12 AM Thread Starter
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Yes, we checked the 50 amp fuse in the trunk. It is good.
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post #4 of 5 (permalink) Old 02-03-2018, 10:30 AM
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Are you getting any fuel pressure? It sounds like a Air or fuel issue if it will start up and die immediately. Maybe check the MAF sensor. Fuel pump can still be kicking but not have pressure. I would start there.
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post #5 of 5 (permalink) Old 02-05-2018, 03:48 PM Thread Starter
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We order a new PCM from Flashmasters. We connected everything and tried the relearn process but the security telltale signal turns right off. We ran through the process anyways with the 10 minute wait window and still will not start and code reader still reads no link with the new PCM.
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2006 cobalt , bcm , won't start

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