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Tapping Rattle Or Spark Knock Noise Underhood - keywords cable clip cover hood intake knock L26 manifold shift spark transmission under

Subject:Tapping, Rattle, or Spark Knock Noise Underhood

Models:2006- 2008 Buick Lucerne with L26



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

Condition/Concern:

Some customers may comment they can hear a tapping, rattle, or spark knock type of noise from the underhood area. The cause may be the transmission shift cable making contact with the intake manifold cover due to the cable clip opening (1).


Object Number: 2035205  Size: SH

Recommendation/Instructions:

Remove the clip (1) and replace it using a tie strap to secure the cable into position.

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.