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If the spike damages the PCM, the vehicle may not restart. If this happens while the vehicle is moving, a crash could occur without prior warning.

Engine And Engine Cooling

Summary
Some sport utility vehicles equipped with an electronically controlled air suspension (ECAS) have a condition in which the ECAS may produce a brief electrical spike while the vehicle is operating. This electrical spike can disrupt the powertrain control module (PCM) causing the vehicle to stall.
Actions
Dealers will install a wiring harness. The recall will begin on August 19, 2004. Owners should contact Oldsmobile at 1-800-630-6537 or GMC at 1-866-996-9463.
Documents (14)

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Date Announced
JUN 23, 2004
Vehicles Affected
29,951
GMC Recall #
04048
NHTSA Campaign #
04V289000
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