What is the firing order on a 99 buick regal 3.8 vin code k naturally aspirated motor

call or notify a bone/junk yard they have the cross reference charts for vehicle parts or try a gm dealer these are a few that are compatible 97-99 Pontiac Bonneville SE 6Cyl 3.8L 231CID VIN K Fit Note Engine VIN: K, Naturally Aspirated 97-99 Pontiac Bonneville SSE 6Cyl 3.8L 231CID VIN K Fit Note Engine VIN: K, Naturally Aspirated 98-99 Buick LeSabre ALL ALL 97 Buick LeSabre ALL ALL Fit Note With Harness Codes: HEN, HER 97-99 Oldsmobile 88 ALL ALL 97-99 Oldsmobile LSS ALL ALL Fit Note Engine VIN: K, Naturally Aspirated 97-98 Oldsmobile Regency ALL ALL

theres no distributor and the firing order for your 3.8 is 1-6-5-4-3-2-the following link shows the coil pack
Buick General Motor 3800 V6 Engine Firing Order DIS IDI ignition timing 3.8 Buick Engine Coil Pack Firing Order Spark Plug Wire Location Which way do the spark plug wires go on & what cylinder is what?
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For the Buick V6 231 3.8 liter turbocharged engine:
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Answers!
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Firing order:
1 - 6 - 5 - 4 - 3 - 2.
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Spark plug wire location on coil pack:
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Closest to the back of the car, left to right: 1 - 5 - 3.
Closest to the front of the car, left to right: 4 - 2 - 6.
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Spark plug wire location on engine:
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drivers side, front to back of car: 1 - 3 - 5.
passenger side, front to back of car: 2 - 4 - 6.
.----and this link shows the coil pack to cylinders
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3 8 Buick Turbo Engine Coil Pack Firing Order Spark Plug Wire Location

1981 Buick Regal 4.1 liter V-6 VIN "4" 4-bbl




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To get it right the first time, remove and tag the spark plug wires one at a time, for replacement.
3.1L (VIN M) engine
Firing order: 1-2-3-4-5-6

1995 Buick Regal 3.8 liter V-6 VIN "L"




1995 Buick Regal 3.1 liter V-6 VIN "M"




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1988 Buick Regal 2.8 liter V-6 VIN "W"



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For 1990 Buick Regal 3.1 liter V-6 VIN "T" check this...




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1-6-5-4-3-2 is for the 3.8 liter engine
1-2-3-4-5-6 is for 3.1 liter engine

1998 Buick Lesabre 3.8L SFI OHV 6cyl



Fig. 1: 3.8L (VIN B and 3) Engines Firing Order: 1-6-5-4-3-2 Distributorless Ignition System


Fig. 2: 3.8L (VIN C, 1, L and K) Engines Firing Order: 1-6-5-4-3-2 Distributorless Ignition System

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Hi,
The firing order is 123456
1-3-5 is in back and 2-4-6 is in front.
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