GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Cobalt 🢒 Bulletins 🢒 SES Light On or Various Driveability Concerns - keywords backfire cold DTC G103 hesitate idle INT intermittent light low MIL rough stall start SES various warm

SES Light On or Various Driveability Concerns - keywords backfire cold DTC G103 hesitate idle INT intermittent light low MIL rough stall start SES various warm

Subject:SES Light on or Various Driveability Concerns

Models:2005-2006 Chevrolet Cobalt
2005-2006 Pontiac Pursuit


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A customer might comment about a SES light on or Various driveability concerns intermittently.

Recommendation/Instructions:

The first thing to check is Ground G103 for it being loose, If it is tight then proceed with current diagnostics.

Note: This ground is located behind the left front head light assembly on the top of the frame rail.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.