Service Engine Soon (SES) Light DTC P0327 P0332 Or Spark Knock - keywords 3.8 3800 accelerate code detonation DTC L26 load MIL
| Subject: | Service Engine Soon (SES) Light, DTC P0327, P0332 or Spark Knock |
| Models: | 2008 Buick Lucerne |
| Equipped with 3800 Engine RPO Code L26 (VIN Code 2) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment that the SES light is on. Others may comment that they hear spark knock when the engine is accelerating or under a load. Upon inspection with a Tech 2 you may find DTC P0327 (Knock Sensor (KS) Circuit Bank 1) or DTC P0332: Knock Sensor (KS) Circuit Bank 2.
Recommendation/Instructions:
If your diagnosis leads you to replacing either knock sensor then contact Jim Kelly on (586) 492-5612 and he will supply you with a parts waiver and shipping information on where to send the old knock sensor(s). The correct labor operation for replacing the knock sensors is J4437.
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.
