Not all spark plugs firen

1996 Dodge ram 1500 NO ENGINE TOLD OF 5.GAS ENGINES
3.9 TO 8.0LITERS. AND A DIESEL NOT YOURS.
POST YOUR VIN AND WE KNOW WHAT ENGINE IS THERE. X5

SO IS AN AUTOMATIC TRANSMISSION?, YOU DID NOT SAY DRIVE IS STUCK IN 1ST GEAR.?
PRNDL
DOES REVERSE AND LO(L) WORK?
CHECK FUSES?
SCAN IT YET?
CHANGE SPARK PLUGS 1 AT A TIME?
IF YOU MESSED UP SPARK THE ENGINE WOULD SHAKE SUPER HARD AND HORRIBLE POWER AND NOT GO FAST ENOUGH TO GET TO 2ND GEAR.
IF ENGINE (NONE TOLD ) HAS COIL PACK WITH 2 OR MORE SPARK WIRES, THOSE MUST NEVER BE MIXED UP.

3.9 LITER
SPARK
The front coil pack fires six cylinders and the rearward coil pack fires four cylinders.
NEVER MIX THESE UP
5/10, 9/8, 1/6, 7/4 and 3/2.
END 3.9L EXAMPLE.


ONLY CHANGE SPARK PLUG 1 AT A TIME.
ONLY CHANGE COIL PACK HV SPARK WIRES, 1 AT A TIME
OR FAIL YOU WILL. (OR BUY NGK COIL PACKS THAT ARE MARKED CORRECTLY )

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

It could be the computer (called the PCM) that is defective since it grounds the coils and fires the plugs.

check for spark in cylinders 1 and 4 if none, replace coil pack. If spark is present replace spark plugs in cylinder 1 and 4

The fact that this issue began after you changed the air filter and that it idles higher than it used to sounds like you accidentally knocked off a vacuum line while changing the filter. Look around for any hoses or small rubber lines and connectors that are no longer attached.

disturtor module most likley but check the rotor to

Hi,
REMOVAL
Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.

• Prior to removing the spark plug, spray compressed air around the coil area and spark plug.
• Remove electrical connector from ignition coil.

On 3.5L engines, it is necessary to loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.

• Remove 2 fasteners from ignition coil.
• Remove ignition coil assembly.
• Remove the spark plug using a quality socket with a rubber or foam insert.
• Inspect the spark plug condition.

INSTALLATION
Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.

• To avoid cross threading, start the spark plug into the cylinder head by hand.
• 3.5L engines tighten spark plugs to 28 N·m (20 ft. lbs.) torque, 2.7L engine tighten spark plugs to 17.6 N·m (13 ft. lbs.).
• Install ignition coil assembly onto spark plug.
• Install coil screws and tighten: 2.7L engine to 6.2 N·m (55 in. lbs.), 3.5L engines to 6.7 N·m (60 in. lbs.).
• Connect the electrical connector.

Start Small work to Big = Saved Money!
The Code(s) should be telling the specific cylinder(s) that are misfiring. Do you know waht the code is?
Target those cylinders 1st before testing the unaffected cylinders.
The following should isolate the problem(s).
1. Spark plugs - take out-reconnect back to wires and test spark plugs for getting sparks. If none: Don't replace them yet. GO TO 2. If the spark plugs are worn, dirty them replace them.
2. Remove spark plugs form end of ignition wires and test for spark from the wire. If none: Don't replace them yet. GO TO 3.
3. Remove the wires from the coil connection and test the coil for spark for each cylinder. If none: Don't replace it yet.
4. Test each spark plug and wires this way.
5. Coil Packs normally provide fire for 2-cylinders at the same time. The two are paired across from one another.
6. Test the coil for fire, amount of fire and if there is both cyclinders firing.
Misfire and the O2 Sensor got replaced??
Good Luck and get back with me if you need additional help or if this solved the problem.

YOUR CAR ONLY HAS COIL PACKS. CHECK VOLTAGE AT HARNNESS, IF OK REMOVE COIL PACK FROM SPARK PLUG REMOVE BOOT CHECK FOR VOLTAGE THERE, IF NONE POSS. COIL PACK.

If none of your coils are firing then it is possible you have lost the ignition module. It mounts under the coils and is not hard to change. Good Luck