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.
2021 Dodge and Ram ProMaster 1500FACTORY OEM SERVICE PROCEDURE
Coil, Ignition: Installation: Left
- Using compressed air, blow out any dirt or contaminants from around the top of spark plug.
- Check the condition of the ignition coil rubber boot (1). Inspect the opening of the boot (2) for any debris, tears or rips. Carefully remove any debris with a lint free cloth.CAUTION:
Do not apply a silicone based grease such as Mopar® Dielectric Grease to the ignition coil rubber boot. The silicone based grease will absorb into the boot causing it to stick and tear.
- Place a small, 360° bead of Uniflor 8172Â
lubricant (1) along the inside opening of the coil boot approximately 1 to 2 mm from the chamfer edge but not on the chamfered surface.
- Position the ignition coil (2) into the cylinder head cover opening. Using a twisting action, push the ignition coil onto the spark plug.
- Install the ignition coil mounting bolt (3) and tighten to the proper torque specification. Refer to TECHNICAL SPECIFICATIONSÂ .
- Connect and lock the electrical connector (1) to the ignition coil (2).
- Install the insulator and the upper intake manifold. Refer to MANIFOLD, INTAKE, INSTALLATION .
- Connect the negative battery cable.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
