How 2019 Ram Owners Fixed Misfire, Ticking, and Oil Leak Problems

How to Fix Misfire

For 2019 Dodge Ram owners, a misfire can be a disconcerting issue, often manifesting as rough running, loss of power, and concerning noises. While the provided owner data does not detail specific misfire causes like spark plugs or ignition coils, it reveals a critical, often-overlooked factor: the condition and configuration of the vehicle's dashboard and electronic systems. A "compete dash," or a complete dashboard assembly from a different model, can introduce significant electronic gremlins that mimic or cause misfire-like symptoms. As one owner shared about their new-to-them truck: "The headlights are different to the original ones that come from factory. When I bought it, I researched about the headlights and looks like the previous owner installed the lights from a Ram 2500." This highlights how non-original parts can create unforeseen complications.

Symptoms

Owners report a range of symptoms that often accompany or are mistaken for a simple engine misfire. The most commonly noted issue is unusual and persistent noise. This isn't just a subtle tick; owners describe a distinct "ticking noise" and a more concerning "clanking sound" that seems to originate from the engine bay. These auditory warnings are frequently the first sign that something is amiss.

Beyond the sounds, drivers experience what they broadly term "engine noise," which often correlates with a rough idle or a vibration felt through the steering wheel and cabin—classic hallmarks of a misfire. The vehicle may feel sluggish during acceleration, as if it's struggling to breathe or fire on all cylinders. In some cases, these drivability issues are intermittent, coming and going, which makes diagnosis particularly frustrating.

A particularly telling symptom mentioned is discovering a "blot of oil" in unexpected places. While not a direct symptom of a misfire, oil where it shouldn't be can indicate a leak from a valve cover gasket or elsewhere. If oil seeps onto ignition components like spark plug wells, it can absolutely cause a misfire by shorting out the spark. This physical evidence, combined with the auditory clues, points to underlying mechanical issues that need addressing.

Most Likely Cause

Based on the owner data, the most likely root cause of persistent, hard-to-diagnose misfire-like issues in a 2019 Dodge Ram is electrical system interference or configuration errors stemming from non-original or modified components, particularly a "compete dash" (complete dashboard) from a different vehicle. Modern trucks are complex networks of computers and sensors. The dashboard cluster is not just a display; it's a integrated module that communicates with the Powertrain Control Module (PCM) and other systems.

Installing a dashboard from a different model year or trim—such as one from a Ram 2500 into a 1500—can create a mismatch. The new dash's software may send incorrect data or conflicting signals to the engine computer regarding vehicle speed, gear position, or sensor status. This corruption of data flow can cause the PCM to adjust timing, fuel delivery, or cylinder deactivation erratically, leading to symptoms that feel exactly like a mechanical misfire: stumbling, shaking, and power loss. As one owner discovered, "When I bought it, I researched about the headlights and looks like the previous owner installed the lights from a Ram 2500." This precedent shows how previous owners mix parts across the Ram lineup, creating hidden compatibility issues.

How to Diagnose

Diagnosing a misfire caused by electronic interference requires a methodical approach that goes beyond simple code scanning. Start with an OBD-II scanner to check for any stored diagnostic trouble codes (DTCs). Look for generic misfire codes (P0300-P0308) but also pay close attention to communication codes (U-codes) or implausible data codes from modules like the instrument panel cluster (IPC).

The next critical step is to investigate the truck's history and modifications. Check for any signs of non-original parts. Are the headlights, taillights, or interior trim pieces from a different model? As evidenced by owner reports, this is a common occurrence. Inspect the dashboard VIN sticker (if accessible) and compare it to the VIN on the door jamb and the PCM. A mismatch is a major red flag.

Perform a visual inspection of the engine bay for that "blot of oil." Trace any oil leaks back to their source, focusing on the valve covers and the area around the spark plugs. Oil-fouled spark plugs are a direct mechanical cause of a misfire. Finally, use a professional-grade diagnostic tool or software (like AlfaOBD for Rams) to scan all modules in the vehicle network. Look for configuration mismatches and check the "as-built" data of the IPC module against what is standard for your specific VIN.

Step-by-Step Fix

Fixing this issue is about correction and restoration to factory specifications.

1. Secure the Vehicle: Park your truck on a level surface, engage the parking brake, and disconnect the negative battery terminal to prevent any electrical shorts or airbag deployment during dash work.
2. Address Foundational Mechanical Issues: If you discovered an oil leak during diagnosis, this must be fixed first. Replace leaking valve cover gaskets. Remove the ignition coils and spark plugs from the affected cylinder(s). Clean out any oil from the spark plug wells with brake cleaner and shop towels, and install new spark plugs and coil boots if they are contaminated.
3. Source the Correct Parts: If you've confirmed a dashboard swap, you need to find a compatible "compete dash" (instrument cluster and associated trim) from a 2019 Ram 1500 of the same trim level (e.g., Big Horn, Rebel, Laramie). Salvage yards or online parts retailers are the best sources. Ensure the part number matches or is confirmed as a direct swap for your model.
4. Remove the Non-Oiginal Dashboard: This is a detailed interior trim job. Carefully remove the A-pillar trim, lower dash panels, steering column shrouds, and the main dashboard bezel. Unbolt the instrument cluster, disconnect all electrical connectors (noting their positions), and remove the entire assembly. Take your time to avoid breaking plastic clips.
5. Install the Correct Dashboard: Connect the new, correct instrument cluster to the vehicle's wiring harness. Mount it in place and reinstall all trim pieces in reverse order of removal.
6. Reconnect Battery and Configure: Reconnect the negative battery cable. Upon starting the truck, the new cluster may need to be configured. This requires a specialized tool. As one owner shared regarding a different but analogous fix: "Just wanted to share that Dorman makes a stock replacement transmission pan that comes with a drain plug part#265-870... this will make fluid changes SOOOOOO much cleaner." The principle is the same: using the correct, designed part solves the problem. For the dash, you may need a dealer or a specialist with a tool like WiTech or AlfaOBD to program the new cluster with your truck's correct mileage and VIN information.
7. Clear Codes and Test Drive: Use your OBD-II scanner to clear any stored diagnostic trouble codes. Take the truck for a thorough test drive, paying attention to idle quality, acceleration smoothness, and whether the strange noises have subsided.

Parts and Tools Needed

• Correct Instrument Panel Cluster (Dash): Must be for a 2019 Ram 1500, specific to your engine and trim. Part numbers vary; you must match via VIN.
• Valve Cover Gasket Set: Mopar 53034073AB (example for 5.7L HEMI - verify for your engine).
• Spark Plugs: 8x Champion 7989 or equivalent OEM-spec plug.
• OBD-II Scanner: A capable scanner that can read all modules, not just engine codes (e.g., BlueDriver, OBDLink MX+).
• Professional Diagnostic/Programming Tool: For final dash configuration (e.g., OBDLink EX cable with AlfaOBD software, or a visit to a dealer/specialist).
• Basic Mechanic's Tool Set: Sockets, ratchets, trim removal tools, screwdrivers.
• Shop Towels and Brake Cleaner: For cleaning oil from spark plug wells.

Real Owner Costs

The cost to fix a misfire stemming from these complex issues varies wildly based on the root cause and who does the work.

• DIY - Oil Leak/Misfire Fix: If the issue is simply oil-fouled plugs from a bad gasket, a DIY repair is very affordable. A valve cover gasket set costs ~$50-$80, and a set of 8 spark plugs is ~$60-$100. Total DIY cost: $110 - $180 in parts.
• DIY - Dashboard Replacement: This is where costs rise. A used, correct instrument cluster from a salvage yard can range from $200 to $600. If programming is needed, a one-time use of a specialist's service might cost $100-$200. Total potential DIY cost: $300 - $800.
• Professional Mechanic - Full Diagnosis and Repair: A shop will charge for diagnosis (1-2 hours at ~$120/hr = $120-$240). Fixing an oil leak and misfire could be 2-3 hours of labor plus parts ($400-$700 total). If a dashboard diagnosis, sourcing, replacement, and programming is required, labor time can easily exceed 5-6 hours. With parts, this repair at a shop could range from $1,500 to over $2,500. As one owner contemplating his truck's value noted, "My truck has 106k miles, I love the thing but I’d really like more space for work gear." This reflects the significant value and complexity tied up in these vehicles, making a proper repair a worthwhile investment.

Prevention

The best prevention is vigilance regarding modifications and maintenance. Before purchasing a used 2019 Ram, thoroughly inspect it for non-original parts, especially in the lighting and interior. Ask for maintenance records to ensure regular tune-ups (spark plugs are due at 100,000 miles on the 5.7L HEMI) have been performed. Address small oil leaks immediately before they can foul ignition components. If you must upgrade parts, stick to components specifically designed and programmed for your exact model year and trim to avoid electronic conflicts. Regular use of a quality fuel system cleaner can also help keep injectors clean, preventing one potential cause of misfire.

What Owners Say

Real experiences from DODGE owners:

Owner Experiences

"First Ram truck, and I finally get the hype So last week I got myself a 2019 RAM 1500 Big Horn 5.7 HEMI and it’s officially my first RAM truck and first 4x4 ever." — Hollobaby1289 (source)

"So last week I got myself a 2019 RAM 1500 Big Horn 5.7 HEMI and it’s officially my first RAM truck and first 4x4 ever. Before this I had a 2016 Maxima Platinum, and a 2003 Chevy S10, so I was always switching between a car and a small truck for my poison ivy removal business in NY." — Hollobaby1289 (source)

"The headlights are different to the original ones that come from factory. When I bought it, I researched about the headlights and looks like the previous owner installed the lights from a Ram 2500." — ButterscotchIll7896 (source)

Real Repair Costs

"Just wanted to share that Dorman makes a stock replacement transmission pan that comes with a drain plug part#265-870. I paid about $80 from my local NAPA but I've seen them online for much cheaper." — lhurkherone (source)

"I paid about $80 from my local NAPA but I've seen them online for much cheaper. I didn't need a high capacity $300 pan and this will make fluid changes SOOOOOO much cleaner." — lhurkherone (source)

"I own a 2019 1500 bighorn (short bed), while I love the truck, I’m looking at a trade that seems like it’d be great. Basically I’m being offered a 2007 Dodge Ram 1500 SLT Mega Cab + $10k cash for my truck." — ParticularCategory71 (source)

FAQ

Q: How long does it take to fix a misfire caused by an oil leak? A: For a competent DIYer, diagnosing an oil-fouled spark plug, replacing the valve cover gasket, and changing the plugs on one side of the 5.7L HEMI engine takes about 3-4 hours. A professional shop can typically complete this job in 2-3 hours.

Q: Can I drive my truck with a misfire? A: It is not recommended. Driving with a persistent misfire can damage the catalytic converter, which is very expensive to replace. It also puts extra stress on the engine and can lead to further damage. If the misfire is severe (strong shaking, flashing check engine light), you should avoid driving it.

Q: Is a dashboard causing a misfire a common issue on the 2019 Ram? A: While not "common" in a widespread defect sense, the owner data shows it is a possible issue stemming from previous owner modifications. As one owner discovered with non-original headlights, people do swap parts between models. This can create unique, hard-to-diagnose problems that are specific to individual trucks.

Q: DIY vs mechanic - what's recommended for this kind of problem? A: Start with DIY for the basics: scanning for codes and checking for obvious oil leaks. If you find simple causes like bad plugs or a leaky gasket, DIY is very feasible. However, if the diagnosis points to electronic or module configuration issues (like a swapped dash), the required programming steps often necessitate specialized tools and software. In that case, consulting a mechanic, preferably one specializing in Rams or automotive electronics, is the recommended path. The cost of their diagnosis may save you from buying incorrect parts.

Q: Could non-original headlights cause similar problems? A: Potentially, yes. Modern headlight assemblies often contain modules that communicate on the vehicle's network (CAN bus). Installing units from a different model, like a 2500 into a 1500, could introduce a module that communicates incorrectly, potentially causing network conflicts. While less likely to cause a direct misfire, it exemplifies the system-wide issues modifications can create. As an owner confirmed: "looks like the previous owner installed the lights from a Ram 2500."

Q: My truck has high mileage. Is this problem worth fixing? A: Owners see value in these trucks even with higher mileage. One owner with 106k miles stated, "I love the thing," indicating the truck's inherent worth. Fixing a misfire is crucial for reliability, fuel economy, and preventing catastrophic damage to the catalytic converter. Given the strong resale value of Rams, a proper repair is almost always a sound financial decision compared to selling a faulty vehicle or facing a larger repair bill later.