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Chrysler 200 Spark Plugs Replacement Guide
How to check or change the spark plugs in a 2nd generation 2015, 2016 or 2017 Chrysler 200 with the 2.4L I4 engine.

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2015 Chrysler 200 2.4L I4
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Pull Off Engine Cover
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Plastic Cover Removed

This automotive maintenance tutorial was specifically written to assist owners of the second generation 2015, 2016 and 2017 Chrysler 200 sedan in checking or changing the spark plugs in the Tigershark MultiAir 2 SOHC 2.4 liter inline four cylinder engine.

Owners of other Chrysler, Dodge, Jeep, RAM or Fiat vehicles such as the 300, Pacifica, Town & Country, Avenger, Charger, Challenger, Journey, Dart, Durango, Magnum, Grand Caravan, Fiat 500, Fiat 124 Spider, Grand Cherokee, Renegade, Wrangler, Compass, Liberty, Patriot, ProMaster, 1500 and C/V Tradesman minivan may also find these DIY instructions to be helpful.

The OEM spark plugs were the Champion 9775 (also known as part number REC10WMPB4).

A few other compatible replacement spark plugs with their part numbers are as follows: Denso Iridium 5343 IKH16, Autolite AP5325 and Denso (4703) IKH16TT.

The tools and other items needed to complete this procedure include a pop rivet removal tool or a flathead screwdriver, a 10mm socket with a 1/4" drive ratchet, a 5/8" spark plug socket, a 6" extension bar, a 3/8" drive ratchet and a tube of dielectric grease.

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Tigershark 2.4L I4 Engine
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Part of Air Intake Assembly
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Remove Plastic Pop Rivet
The first few steps are to park the car on a level surface and engage the emergency / parking brake.

Allow the engine to cool down for at least an hour or two.

Open the hood and gently pull off the plastic engine cover.

The plastic cover is held in place by four rubber friction fasteners attached to metal pegs on the top of the engine.

Set the engine cover aside in a safe place.

Part of the air intake system is obstructing the two spark plug ignition coils on the right (driver) side of the engine.

Use a pop rivet removal tool or a flathead screwdriver to gently pry out the fastener that secures the air intake to the top of the engine.

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Swing Up Air Intake
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First Ignition Coil
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Slide Back Red Lock Tab
Carefully swing the air intake up and off the top of the engine.

If you have access to compressed air or a wet/dry shop vacuum, thoroughly clean off the top of the engine to help prevent from having debris fall down in to the cylinder block.

I recommend only checking or changing one spark plug at a time to further reduce the risk of having something fall down in to the engine.

Slide out the red locking tab on the ignition coil electrical connector to release it.

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Pull Off Power Plug
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Loosen Counterclockwise
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Remove Single Bolt
Push the release button on the electrical connector before sliding it straight off the ignition coil housing.

Remove the single bolt that secures the ignition coil to the top of the engine by turning it counterclockwise with a 10mm socket and a 1/4" drive ratchet.

Set the 10mm bolt aside in a safe place.

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Pull Out Ignition Coil
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Spark Plug Socket & Extension
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Loosen Counterclockwise
Rotate the top of the ignition coil housing back and forth a few times to make sure that the rubber dust boot is not stuck or "frozen" to the top of the old spark plug.

Lift the ignition coil out of the spark plug well and set it aside in a safe place.

Attach the 5/8" spark plug socket to the 6" extension bar and the 3/8" drive ratchet.

Lower the socket over the top of the old spark plug. Push it down to secure it in place.

Carefully loosen the old spark plug by turning it in the counterclockwise direction.

Try to avoid using excessive force to loosen the old spark plug to prevent from cracking the ceramic portion of the plug.

If you have trouble loosening the old spark plug, spray a small amount of penetrating oil such as PB Blaster, Liquid Wrench or Kano Kroil and wait at least 15 to 30 minutes before trying to loosen it again. If you don't have any penetrating oil, try spraying some WD-40 or warm up the engine for a few minutes to expand the metal engine block.



 

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Spin Out Old Spark Plug
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Old Spark Plug Removed
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Empty Spark Plug Well
To avoid having the spark plug socket pop off and become stuck down at the bottom of the well, I like to secure it to the extension bar with some painter's tape.

Once the spark plug is loose, detach the ratchet and spin it out the rest of the way by hand.

Lift the old spark plug out of the well and detach it from the socket.

The OEM iridium spark plugs in this 2015 Chrysler 200 were the Champion # 9775 (also known as part number REC10WMPB4).

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Inspect Old Spark Plug
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Spin In New Spark Plug
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Tighten Clockwise

Carefully inspect both ends of the old spark plug.

If the electrode end of the old spark plug appears to be ashy white, the plugs may have been exposed to high temperatures such as overheating or they might be the incorrect heat range for your driving conditions or environment.

If the electrode tip of the old spark plug is grey or covered in dark black soot, the engine might be burning oil and should be inspected by a professional mechanic.

If you have a spark plug gap gauge, check that the new spark plugs are gapped to the manufacturer's specification listed on the box.

Push the new spark plug in to the socket.

Your spark plug socket should have a rubber insert or a strong magnet to securely hold the new spark plug in place.

Lower the new spark plug in to the well and tighten it by hand in the clockwise direction until it makes contact with the cylinder head.

Attach the 3/8" drive ratchet and tighten the new spark plug to just past the point when you feel the new crush washer collapse.

If you are re-installing the old spark plugs, just tighten them a small fraction of a turn past finger tight.

Try to avoid over tightening the spark plugs to prevent from cracking the ceramic portion of the plug or damaging the aluminum threads.

Double check that the spark plugs are tight before moving on to the next steps.

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Apply Dielectric Grease
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Lower In Ignition Coil
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Push On To Spark Plug
Apply some dielectric grease to the opening in the rubber dust boot at the bottom of the ignition coil.

The dielectric grease will help ensure a reliable electrical connection by keeping out dust and moisture.

Lower the ignition coil down in to the spark plug well.

Push it down to secure the rubber dust boot to the top of the new spark plug.

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Spin In Bolt
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Tighten Clockwise
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Push On Power Plug
Spin in the 10mm bolt a few turns by hand in the clockwise direction to help prevent it from becoming cross threaded.

Tighten the bolt in the clockwise direction with the 10mm socket and the 1/4" drive ratchet until it is snug.

Try to avoid over tightening the bolt to prevent from cracking the plastic ignition coil housing.

Push the electrical connector back on to the ignition coil until it clicks securely in to place.

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Slide In Red Locking Tab
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Push On Plastic Engine Cover
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Spark Plugs Replaced
Push in the red tab to lock the electrical connector in place.

Line up the rubber friction fasteners on the underside of the plastic cover with their corresponding metal pegs or "spikes" on the top of the engine.

Push the engine cover down in to place.

Start the engine and listen closely for any strange sounds that might indicate a loose spark plug or a disconnected electrical connector.

Be sure to record the spark plug change in your car's service records.

For more, please check out all of my 2015-2017 Chrysler 200 DIY Repair & Maintenance Guides.
 

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