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For 1990-2009 cars only

Vehicle May Not Start Or May Not Stay Running Intermittently - keywords crank hard intermittent no nostart stall start

Subject:Vehicle May Not Start or May Not Stay Running Intermittently

Models:2005-2006 Buick LaCrosse and Allure (Canada Only)



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

Condition/Concern:

Vehicle may crank and not start or may not stay running intermittently.

Recommendation/Instructions:

Cause:

The 4 bolts that hold the underhood bussed electrical center (UBEC) may become loose, causing a poor connection at the back of the UBEC.

Correction:

Tighten the 4 bolts that hold the UBEC to the inner fenderwell.

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.