What is the Spark Plug order on Coil Pack on a 1995 Mitsubishi Montero LS 3.0 liter 24 valve? .

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3.5L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system.

Mitsubishi Montero, Sport 1998-06 Firing Orders Repair Guide

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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

Because a head gasket are not valve seals. What color of smoke is coming out of your tail pipe? if it's burnt oil, have your valve seals replaced. Head gaskets seal the space between block and the cylinder head. I don't know why your head gasket was replaced when a shop told you your valve seals need to be replaced...makes no sense.

Mitsubishi Montero 3.5 V-6n24 valve

Looking from the front of engine to the rear on the passenger side 1-3-5
Looking from the front of the engine to the rear on the drivers side 2-4-6


The engine has coil over plug with coils only on the drivers side. The spark is shared via spark plug cables to the plugs on the passenger side. So If you are replacing the spark plug cables:

#2 cyl.coil drivers side shares spark with #5 passenger side-
#4 coil drivers side shares spark with #1 passenger side-
#6 coil drivers side shares spark with #3 cylinder passenger side.

Leaking spark plug well seals are a pretty common issue on the 2000-2002 LS's. Since that coil is near the firewall, it could be moisture due to the location of the cowl and possible lack of sealant on the coil covers, but that would be very intermittant as the heat of the head would boil off the water after driving post-rain or car washes. If you find oil on the coil(s), you will want to consider replacing the valve cover gaskets and at least that particular coil. You may find replacing the valve cover gaskets on the V8 to be easier than the thermostat. so if the voltage is low! check the coils out. they may need changing.
Remove the plastic engine cover that covers the valve covers and ignition coils by turning the four quick-disconnect fasteners, located in the corners of the cover, using a screwdriver. Lift the cover up and off the engine. Lay the cover aside. Remove the electrical connector from the coil by pinching the pocking tab with your thumb and index finger as you slide the connector off the coil. Remove the 7 mm retaining screw that attaches the coil to the valve cover. Lift the coil out of the valve cover by twisting the coil as you pull off the spark plug and valve cover.
Replace the spark plug at this time if you are performing a tune-up in addition to a coil replacement. this is for a 2001, but the procedures are the same. from 2000 to 2004. GOOD-DAY !

1.your valve cover's spark plug chamber seal is leaking. Which requires removing the valve covers and replacing the gaskets and seals. 2. Excessive oil spills on to the valve cover and ignition coils when adding oil.

**This excess oil on the plug boots can cause the coils to short and eventually fail.

check the jack pins condition, check for brakes, check the harnhes for broken wires, try an other ecm from a junked or salvage or borrowed and see if it makes any difference

Most likely an oil leak around the ignition coil packs in the valve covers. Remove the center covers on the valve covers and remove the coil packs and see if you have oil in the spark plug wells and on the coil pack boots. If so you will have to replace valve cover gaskets and the orings around the coil pack holes. You can also get the coil pack boots separately if the are oil saturated.

This I believe is a SOHC (12 valve) engine. If in fact new valves are required I would purchase rebuilt heads and use yours for cores (each head will cost @ $250) I have done this job on my 1990 montero over a weekend. Just get the right parts, keep it clean, take your time and be patient.
I hope this may have helped,
Tom

please try checking the contiunity of the ignition cable (spark plug cable) and the spark plug itself, if ok check the distribution cap and rotor for the contacts, good luck