| Subject: | Intermittent No Crank No Start or Delayed Crank |
| Models: | 2005-2006 Buick Rainier |
| 2005-2006 Chevrolet Trailblazer Models |
| 2005-2006 GMC Envoy Models |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment of a no crank no start or delayed crank concern. This concern may be intermittent and difficult to duplicate. Vehicle will store no DTCs and display no indicators for any fault or failure. Battery will be fully charged and show
no evidence of being weak. This concern may be caused by a poor ground solder joint at the starter solenoid. This is the connection between the starter motor and the solenoid.
Recommendation/Instructions:
Using a test light, check for power on circuit 5 at the starter motor solenoid when the concern is current. This is the purple wire from starter relay to the starter solenoid. Refer to SI document 1615124 as needed. If power is present at the starter solenoid,
suspect a poor ground solder joint at the starter solenoid. Replace the starter motor with current SPO parts.
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.
