Century Estate Wagon L4-151 2.5L VIN R TBI (1987)
![background image](/buick/century_estate_wagon/l4-151_2.5l_vin_r_tbi/Page-779001.png)
Firing Order: Specifications
Ignition Firing Order
Spark Plug Wiring
Firing Order ................................................................................................................................................................................................................ 1-3-4-2