The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

Persistent 'HEMI Tick' on my 2018 Charger R/T - What's the deal?

0

Mike T. · rep 0 · May 25, 4:15 AM · 1 replies · solved · Question

Vehicle: 2018 Dodge Charger R/T

Hey everyone, I've got a 2018 Dodge Charger R/T with the 5.7L HEMI, and for the past few weeks, I've been noticing that infamous 'HEMI tick' noise, especially on cold starts. It seems to quiet down a bit once the engine warms up, but it's still audible and frankly, it's making me pretty nervous.

I'm diligent with my oil changes, always using the recommended synthetic oil and filter. I haven't seen any check engine lights, and the car seems to be running fine otherwise, no noticeable loss of power or strange idling. However, the sound is definitely getting more pronounced.

Has anyone else experienced this with their 2018 Charger? Is this just a characteristic of the HEMI, or should I be genuinely concerned about a potential lifter or camshaft issue? Any advice on what I should check or if I should head straight to the dealership would be greatly appreciated. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:15 AM

0

The 'HEMI Tick' is a well-known concern among 5.7L and 6.4L HEMI owners, often indicating an issue with the valvetrain, specifically lifters or the camshaft. While some level of valvetrain noise can be normal, a persistent or worsening tick is cause for investigation.

Here's what you should consider:

  1. Identify the Source: The tick can originate from various components. Common culprits include:

    • Collapsed Lifters: This is the most frequent cause, where a hydraulic lifter fails to maintain proper oil pressure, leading to excessive play.
    • Worn Camshaft Lobes: A failing lifter can also damage the camshaft lobe it rides on.
    • Exhaust Leaks: Sometimes, a small exhaust manifold leak can mimic a valvetrain tick, especially when cold.
    • Oil Viscosity/Level: Ensure you're using the correct oil viscosity (e.g., 5W-20 for many 5.7L HEMIs) and that the oil level is consistently full.

  2. Diagnostics: While a CEL might not be present, a mechanic can perform more in-depth diagnostics:

    • Stethoscope Check: Pinpointing the exact location of the noise.
    • Oil Pressure Test: To rule out low oil pressure issues (though less common for just a tick).
    • Cylinder Drop Test: To identify if a specific cylinder is producing the noise, often indicative of a lifter issue.

  3. When to See a Shop: You should definitely have your 2018 Charger R/T inspected by a qualified mechanic or dealership as soon as possible, especially since the noise is worsening. Ignoring a lifter or camshaft issue can lead to more severe engine damage, including metal shavings contaminating the oil system or catastrophic engine failure. Early intervention can save significant repair costs. If misfires start occurring (which would trigger a P030x code), it's an even more urgent matter.

Menu

Help & account