Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER2003300M V6-3.5L VIN MREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSPARK PLUGSPARK PLUG TUBESERVICE AND REPAIR
2003 Chrysler 300M V6-3.5L VIN M
Spark Plug Tube: Service and Repair
2003 Chrysler 300M V6-3.5L VIN MSECTION Service and Repair
SPARK PLUG TUBE
REMOVAL
1. Remove cylinder head cover(s).
2. Using suitable locking pliers, remove the tube from the cylinder head and discard tube.
3. Clean area around spark plug with Mopar Parts Cleaner or equivalent.
INSTALLATION
1. Apply Mopar Stud and Bearing Mount to a new tube approximately 1 mm (0.039 inch) from the end of tube, in a 3 mm (0.118 inch) wide area.
2. Install sealer end of tube into the cylinder head. Then carefully install the tube using a hardwood block and mallet. Install the tube until it is seated into the bottom of the bore.
3. For spark plug tube seal replacement, Refer to CYLINDER HEAD COVER(S) - REMOVAL.
4. Install cylinder head cover(s).
REMOVAL
1. Remove cylinder head cover(s).
2. Using suitable locking pliers, remove the tube from the cylinder head and discard tube.
3. Clean area around spark plug with Mopar Parts Cleaner or equivalent.
INSTALLATION
1. Apply Mopar Stud and Bearing Mount to a new tube approximately 1 mm (0.039 inch) from the end of tube, in a 3 mm (0.118 inch) wide area.
2. Install sealer end of tube into the cylinder head. Then carefully install the tube using a hardwood block and mallet. Install the tube until it is seated into the bottom of the bore.
3. For spark plug tube seal replacement, Refer to CYLINDER HEAD COVER(S) - REMOVAL.
4. Install cylinder head cover(s).
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.