For 1990-2009 cars

# Engine Dieseling/Run On When Engine is Turned Off Cold - keywords characteristic crank delayed diesel DTC key normal runon stop warm

Subject: | Engine Dieseling / Run On When Engine is Turned Off Cold

Models: | 2006-2007 Chevrolet Cobalt

| 2006-2007 Chevrolet HHR

| 2006-2007 Chevrolet Malibu

| 2006-2007 Pontiac G6

| 2006-2007 Pontiac Pursuit (Canada Only)

| 2006-2007 Pontiac Solstice

| 2007 Saturn Aura

| 2006-2007 Saturn Ion

| 2007 Saturn Sky

| 2007 Saturn Vue

| with 2.4L Engine (VIN B or P - RPO LE5)

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

### Condition/Concern:

When the key is turned off, this ignition system will continue to operate until the engine RPM drops near 0 RPM. As a result, the engine may diesel, or run on, if there is residual fuel in the intake manifold due to normal cold start fueling of the engine. No DTCs will set as a result of this concern.

### Recommendation/Instructions:

If this concern is encountered and there are no DTCs stored, this should be considered a normal characteristic of the vehicle and no repairs should be performed.

Important: If this concern is encountered, please submit a field product report by following 02-00-89-002D.

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.