Buick Regal: Firing Order and Cylinder Identification
NOTE: This information is intended as a quick reference for firing
order and
cylinder identification only. The information provided covers many
vehicles and may include some information that does not apply to the
vehicle you have currently selected.
3 CYLINDER ENGINE

4 CYLINDER ENGINE

5 CYLINDER ENGINE

IN-LINE 6 ENGINE

V6 ENGINE
3.5L VIN 4 V6 Engine

3.8L & 4.3L V6 Engines

All Other V6 Engines Except 3.5L (VIN 4), 3.8L & 4.3L

8 CYLINDER ENGINE
4.0L, 4.4L & 4.6L V8 Engines

5.0L, 5.7L (VIN R & VIN K) & 7.4L V8 Engines

6.6L Diesel V8 Engine

All Other V8 Engines Except 4.0L, 4.4L, 4.6L, 5.0L, 5.7L (VIN R & K), 7.4L
& 6.6L

READ NEXT:
Specifications
FASTENER SPECIFICATIONS (OFF VEHICLE)
Single Use Non-Threaded Fasteners/Components
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced
with NEW
after rem
SEE MORE:
Warning:
If the HUD image is too bright or
too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the v
Warning:
Engine exhaust contains carbon
monoxide (CO), which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas
with poor ventilation
(parking garages, tunnels,
deep snow that may block
underbody air