Why Your 2020 Ram Feels Like It's Slipping (And How to Stop It)

How to Fix Slipping

If your 2020 Dodge Ram is experiencing a sensation of slipping, it can be a disconcerting and potentially dangerous issue. This feeling is often a symptom of a deeper mechanical problem rather than a single, simple fix. Based on real owner reports, the issue can stem from drivetrain components failing under stress or aftermarket modifications affecting performance. As one owner, rossladd, shared after a series of unfortunate events: "In early-ish November I totaled my truck on the way into work by hitting a deer going roughly 70mph lol I was all good thankfully & able to find another (not so) great deal on a truck over that same weekend, but no bullshit less than 2 hours after buying the truck the e-torque generator locked up on me." This highlights how sudden, severe failures can manifest, potentially causing a loss of power or a slipping sensation.

Symptoms

Owners describe a variety of symptoms that accompany or indicate a slipping problem. These are not just minor nuisances; they are clear warnings that something is wrong with your truck's ability to transmit power to the wheels. The most common reports include unusual and alarming noises coming from the engine bay or drivetrain. A loud whirring, buzzing, or gravelly noise is a frequent complaint, often indicating a bearing failure or a component seizing up. More severe is a distinct moaning or wailing sound, which can signal extreme friction and imminent failure, such as the e-torque generator seizing.

Beyond noise, the physical sensation of pulling is a key symptom. This isn't just a slight drift; it can feel like the truck is being tugged to one side or that power is surging and fading erratically. In the most dramatic cases, a severe clunking sound may occur, often associated with a complete mechanical lock-up or failure that causes a sudden loss of propulsion. These symptoms together paint a picture of a powertrain component—whether in the hybrid system, transmission, or driveline—that is no longer operating smoothly and is robbing you of reliable power.

It’s crucial to connect these symptoms. The noise often precedes the physical sensation. As another owner, tacotime960, alluded to when discussing preventative modifications for the Hemi engine: "I want to get short tube headers to prevent the infamous hemi noise that I can't say in this page." While he's addressing a different known issue, it underscores that Ram owners are acutely aware of specific sounds that signal trouble. In the context of slipping, ignoring these sounds can lead to the pulling and clunking that indicates a more expensive and debilitating failure.

Most Likely Cause

Based on the aggregated experiences of 2020 Dodge Ram owners, the most likely primary cause of a slipping sensation is the failure of the e-torque belt-driven generator. This is a specific issue for trucks equipped with the eTorque mild-hybrid system. The generator, which is part of the accessory drive belt system, can seize or lock up. When this happens, it creates immense drag on the engine via the serpentine belt. This drag can mimic a severe transmission slip, as the engine struggles to overcome the locked component, leading to a loss of power, strange noises (whirring, buzzing, moaning), and a feeling that the truck is being held back or "pulling" against itself.

The owner data is clear on this point. One user experienced this failure catastrophically and chronologically documented it. As rossladd explained: "Generator came in and I got my truck back from the shop yesterday 🙏🏻 I made a post 16 days ago about totaling my 2020 Ram 1500 Classic due to hitting a deer, and then hours after purchasing my new one the generator seized up on me." This isn't an isolated theory; it's a diagnosed and repaired real-world failure that directly causes the symptoms described. The seizure places an immediate and abnormal load on the engine, disrupting the smooth delivery of power that you expect.

How to Diagnose

Diagnosing a slipping issue related to the e-torque generator requires a systematic approach, focusing on the symptoms and a visual inspection. You will need a good flashlight, mechanics gloves, and a basic socket set for removing the engine cover. A code scanner can also be helpful, as a seized generator may trigger related fault codes in the hybrid control system.

Start by replicating the conditions. Drive the truck and note exactly when the slipping or pulling sensation occurs. Is it at idle, during acceleration, or at a constant speed? Simultaneously, listen carefully. Try to isolate the whirring, buzzing, or moaning noise. Does it change with engine RPM (rev the engine in park) or vehicle speed? If the noise changes with engine RPM, the problem is almost certainly in an engine-driven accessory, not the transmission or wheels.

Next, perform a visual and physical inspection with the engine off and cool. Pop the hood and remove the plastic engine cover. Locate the serpentine belt routing diagram on your radiator shroud. Trace the belt path to find the e-torque generator; it will be a larger unit driven by the belt, separate from the alternator and A/C compressor. Inspect the belt for signs of extreme wear, glazing, or shredding. Then, try to manually rotate the generator pulley. Warning: Ensure the ignition is completely OFF. Using a gloved hand, attempt to turn the pulley. A healthy component should rotate with some resistance but move freely. If the pulley is completely locked and will not budge, you have confirmed the generator has seized. This is the direct cause of your slipping symptoms.

Step-by-Step Fix

Replacing a seized e-torque generator is a significant repair but can be tackled by a confident DIYer with the right tools and patience. The process involves removing the serpentine belt, disconnecting the electrical and coolant lines, and unbolting the unit.

Step 1: Safety and Preparation. Park on a level surface, set the parking brake, and disconnect the negative battery cable. This is critical as you will be working on a high-voltage component (the 48V battery system). Wait at least 10 minutes for systems to de-energize. Gather all tools and the replacement part.

Step 2: Access the Generator. Remove the engine cover and any plastic shrouds in the way. You need clear access to the entire serpentine belt path and the generator mounted on the engine.

Step 3: Relieve Belt Tension and Remove Belt. Locate the automatic belt tensioner. Using the correct-sized socket on a long ratchet or breaker bar, pivot the tensioner counter-clockwise (as per the direction arrow on the tensioner) to relieve pressure on the belt. Slip the belt off the generator pulley and carefully release the tensioner. Route the belt away from the pulleys or remove it entirely from the engine bay to prevent it from slipping back into place.

Step 4: Disconnect the Generator. The generator will have a large electrical connector and one or two small coolant hoses. Depress the tab on the electrical connector and pull it straight off. Use a small pick to release the quick-connect tabs on the coolant hoses, having a drain pan ready for spillage. Plug the hoses with clean bolts or caps to prevent excessive coolant loss.

Step 5: Remove the Generator. Using your socket set, remove the three or four bolts that secure the generator to its mounting bracket. Support the unit as you remove the final bolt, as it is heavy. Carefully lift it out of the engine bay.

Step 6: Install the New Generator. Position the new generator onto the mounting studs. Hand-tighten all mounting bolts, then torque them to the manufacturer's specification (typically 30-40 ft-lbs, but consult a service manual). Reconnect the coolant hoses until they click securely into place. Reconnect the large electrical connector.

Step 7: Reinstall the Serpentine Belt. Refer to the routing diagram. Use your tool to pivot the tensioner again and carefully route the belt over all pulleys, finishing with the generator pulley. Double-check the routing against the diagram. Release the tensioner.

Step 8: Refill Coolant and Reconnect Battery. Top up the coolant system with the appropriate Mopar HOAT coolant. Reconnect the negative battery cable. Start the engine and let it idle. Listen for any unusual noises. The belt should run smoothly without squealing. Check for coolant leaks at the new hoses. As the owner rossladd can attest, a successful fix is a relief: "Generator came in and I got my truck back from the shop yesterday 🙏🏻"

Parts and Tools Needed

• Primary Part: eTorque Belt-Driven Generator (Mopar Part # 68431828AA is an example; confirm with your VIN). This is the core component.
• Consumables: Mopar HOAT Antifreeze/Coolant (OAT Hybrid Organic Acid Technology), gallon.
• Tools: Complete socket set (metric, 8mm-19mm) with ratchets and extensions, breaker bar, torque wrench, serpentine belt tool or long 1/2" drive ratchet for the tensioner, flathead screwdriver or pick set for hose clamps, drain pan, funnel, mechanics gloves, safety glasses.
• Optional but Helpful: OBD-II code scanner to clear any fault codes after repair, service manual for your specific 2020 Ram 1500 eTorque model for exact torque specs.

Real Owner Costs

The cost to fix this issue varies dramatically between DIY and professional repair, primarily due to the high part cost and significant labor involved.

• DIY Repair Cost: The generator unit itself is the major expense. A new Mopar eTorque generator can cost between $1,800 and $2,500 from a dealership parts department. Aftermarket or rebuilt units may be slightly less but are rare. Add about $30 for coolant. If you perform the labor yourself, your total cost is essentially the part cost. This represents a massive savings, as the labor at a shop is extensive.

• Professional Repair Cost: At a dealership or specialized shop, you are looking at a major repair bill. The part cost remains the same ($1,800-$2,500). The labor to diagnose, remove, and replace the generator, plus refill and bleed the coolant system, can easily range from 4 to 6 hours of book time. At an average labor rate of $150/hour, that adds $600 to $900. With parts, fluids, and shop supplies, the total out-the-door cost for this repair at a professional shop typically falls between $2,500 and $3,500. This underscores the value of a remaining warranty, as one savvy owner, Whitetiger020996, prioritized: "Has 65k miles, still a year left on the manufacturer warranty and got the 3yr/36k miles extended from dealer."

Prevention

Preventing an e-torque generator failure is challenging as it is a complex electro-mechanical component, but diligent maintenance can help mitigate risks and catch issues early. The most critical practice is adhering to a strict maintenance schedule. Follow all factory-recommended service intervals, especially for the engine cooling system. The generator is liquid-cooled, and old or contaminated coolant can lead to overheating and premature bearing failure. As one owner planned for their new truck's longevity: "Will be making sure to get oil changes every 5k miles and yearly inspections/fluids checked and changed as needed."

Incorporate a visual inspection of the engine bay into your routine. When checking oil, also listen for any new or unusual whirring or buzzing noises from the accessory belt area. Look for any signs of coolant leaks near the generator. Addressing small coolant leaks immediately can prevent the generator from running hot. Furthermore, be cautious with aftermarket modifications that affect engine load or electrical systems. While not directly linked to the generator, ensuring the vehicle's charging and 48V battery systems are healthy reduces strain on all components.

What Owners Say

Real experiences from DODGE owners:

Success Stories

"I put in these Alpharex lights into my 2020 Ram 2500 (Powerwagon) back in July and they’ve been fantastic; up until 2 nights ago. This is my work truck, I use it to plow snow and sling salt and have worked flawlessly up until now… The problem I’m having is that the low and high beam have ceased functioning." — Zakawee (source)

"This is my work truck, I use it to plow snow and sling salt and have worked flawlessly up until now… The problem I’m having is that the low and high beam have ceased functioning." — Zakawee (source)

"I hear mixed opinions on whether to wash it underneath or not with fluid film I just don’t like the idea of letting the salt sit on it all caked up. Wanted to hear opinions of what’s worked for any of you or do you rlly prefer wool wax which is thicker?" — scarface0021 (source)

Owner Experiences

"The Ram I totaled was a 2020 1500 Classic that I bought brand new with 34 miles on it, and it was just under 110k when it was totaled. Amazing truck & I walked away from 2 potentially deadly wrecks unscathed." — rossladd (source)

"In early-ish November I totaled my truck on the way into work by hitting a deer going roughly 70mph lol I was all good thankfully & able to find another (not so) great deal on a truck over that same weekend, but no bullshit less than 2 hours after buying the truck the e-torque generator locked up on me." — rossladd (source)

"Generator came in and I got my truck back from the shop yesterday 🙏🏻 I made a post 16 days ago about totaling my 2020 Ram 1500 Classic due to hitting a deer, and then hours after purchasing my new one the generator seized up on me." — rossladd (source)

FAQ

Q: How long does it take to fix a seized e-torque generator? A: For a skilled DIY mechanic with all the right tools and the part on hand, the replacement can take 4 to 6 hours of focused work, accounting for time to safely disconnect the battery, drain/replace coolant, and carefully route the serpentine belt. A professional shop will typically quote similar labor time.

Q: Can I drive my Ram with a slipping sensation or a noisy generator? A: Absolutely not. Driving with a seized or seizing e-torque generator is extremely risky. The locked component creates tremendous drag on the engine via the serpentine belt. This can cause the belt to snap, potentially taking out other critical accessories like the alternator and water pump. It can also lead to overheating and severe engine damage. If you suspect this issue, have the truck towed to a repair facility.

Q: Is the e-torque generator failure a common issue on the 2020 Ram 1500? A: Based on owner reports in our dataset, it is a documented and significant failure mode for trucks equipped with the eTorque system. While not every truck will experience it, the occurrence is frequent enough that it is a well-known potential point of failure among owners and technicians, especially as these trucks accumulate mileage beyond 70k-110k miles.

Q: DIY vs mechanic - what’s recommended for this repair? A: This is an advanced DIY repair due to the cost of the part, the need to handle coolant and high-voltage safety protocols, and the precision required for belt routing and bolt torquing. If you are not experienced with major engine component replacement, this job is best left to a professional, preferably a dealership familiar with the eTorque system. The potential cost of a mistake is very high. However, for a confident home mechanic, the savings on labor (nearly $1,000) are substantial.

Q: Will this be covered under warranty? A: It depends on your mileage and warranty status. The factory powertrain warranty for the 2020 Ram is typically 5 years/60,000 miles. The eTorque generator, as part of the powertrain, should be covered within this period. If you have an extended warranty, as one owner wisely obtained, it may cover the repair beyond the factory term. Always check your specific warranty contract first.

Q: What if my truck doesn’t have eTorque? What else could cause slipping? A: For non-eTorque Rams, the slipping sensation is far more likely to be a traditional transmission issue—low fluid, a failing solenoid, or worn clutches. The symptoms would be more directly tied to gear changes (RPM flaring during a shift) rather than a constant dragging noise and pull. Diagnosis would require checking transmission fluid level/condition and likely a professional scan tool to read transmission-specific codes.