Introduction
Some owners of vehicles equipped with the 2.8L engine and 6-speed automatic transmission have reported a “flaring” sensation during upshifts, particularly when the engine is cold and under moderate load in lower gears. Flaring is when engine RPM increases unexpectedly during a shift.
Problem
The primary symptom is a noticeable increase in engine RPM during upshifts, giving a “flaring” feel, most commonly experienced when the engine is cold and during light to moderate acceleration. This issue appears to be more prevalent in earlier models.
Solution
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Software Update: The most commonly reported solution is to have the vehicle’s transmission control module (TCM) software updated by the dealership. This update is specifically designed to address the shift behavior.
It is important to note that a software update may not completely eliminate the issue in all cases, with some owners reporting the flaring reoccurring sporadically, particularly during cold starts.
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