Century Estate Wagon L4-151 2.5L VIN R TBI (1987)
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Shift Modulator: All Technical Service Bulletins
Harsh 3-2 Shift Low Altitude Only
III. HARSH 3-2 SHIFT **Low Altitude* Only **
1986-1990 Century, Electra/Park Avenue, Riviera/Reatta, LeSabre and Regal models
1991 Century, LeSabre and Regal models
1992 Century and Regal models
*Areas other than the Designated High Altitude Counties listed in Figure 4.