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

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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:
1.
Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room
Temperature Vulcanizing
(RTV) and Anaerobic Sealant.
NOTE:
The oil pan sealing surfaces must be free of contamination prior
to
applying the sealer.
Install and align the oil pans within 20 minutes of applying th
Special Tools
CH-45405 Pipe Flaring Tool Kit
For equivalent regional tools, refer to Special Tools.
WARNING: Refer to Brake Fluid Irritant Warning.
WARNING: Always use double walled steel brake pipe when replacing brake
pipes. The
use of any other pipe is not recommended and may cause brake system