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moderate Owners of the 2021 RAM 1500 have filed 26 NHTSA complaints about the fuel system, typically surfacing around 30,000 miles at roughly $1,200 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See fuel system across all vehicles →
| Model year | fuel system complaints |
|---|---|
| 2017 1500 | 30 |
| 2018 1500 | 43 |
| 2019 1500 | 17 |
| 2020 1500 | 28 |
| 2021 1500 (this page) | 26 |
Of the 26 fuel system complaints filed for the 2021 RAM 1500, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
An engine stall can increase the risk of a crash.
The manufacturer has issued service bulletins covering fuel system on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Upgrading To A Larger Capacity Fuel Tanks
full bulletin at NHTSA ↗Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may experience one or more of the following: Generic Scan Tool shows incorrect PCM Calibration Part Number and Emissions type:OBDI not OBDII(North America Only). Hesitation feel during a pedal tip in, while engine is warming up below -1 °C (30 °F) ambient temp. During a 2 - 3 transmission upshift, the engine is hitting rev limit(DFS Sales Code Only). ?Service Suspension? message in Instrument Panel Cluster (IPC) on start up. Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigati
full bulletin at NHTSA ↗Customer complaint of fuel filler tube loose or rattling at nozzle fill location.
full bulletin at NHTSA ↗Customer complaint may include MIL-On/check engine lamp-on condition. Upon further inspection, a DTC for P0456-Small Leak Detected may be set in the PCM.
full bulletin at NHTSA ↗Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
High-pressure fuel pump failure is the dominant complaint across these 26 reports. Owners describe sudden engine stall—while driving at highway speeds, making turns, or sitting at red lights—with the engine refusing to restart. In most cases, no warning lights alert the driver. Failures occur from 6,700 to 102,000 miles, catching owners off-guard: one stalled at 75 MPH hauling a trailer; another lost power while reversing into a parking space; others stalled while making turns. Several had to be towed out of state with no immediate resolution.
Nearly all complaints reference NHTSA Campaign 22V767000, the fuel system recall. The core problem isn't diagnosis—dealers confirm pump failure readily—but parts availability. Replacement parts have been on national backorder or severely restricted distribution for months after recall notices were mailed. Owners report manufacturer-imposed 14-day order limits per dealer and no timeline for part availability.
Even owners who completed the recall repair encountered trouble: one vehicle required a second fuel pump repair at the owner's expense after the recall-covered pump was replaced; another developed check engine light and multiple undisclosed failures requiring five dealer visits without resolution. One owner discovered metal debris in the fuel filter, necessitating complete fuel system replacement with parts still unavailable. Another owner deemed the truck unusable and unable to receive manufacturer help. The frustration centers on waiting—notification letters arrive, but no parts follow, leaving owners stranded for weeks or months.
Same RAM 1500 fuel system reports on nearby years: 2018 · 2019 · 2020
High-pressure fuel pump fails without warning, causing engine to stall and vehicle to lose restart capability. Occurs across wide mileage range (6,700–102,000 miles). Multiple owners report inability to restart even after towing, with some stuck out of state waiting for roadside assistance.
When: 6,700–102,000 miles; incidents occur while driving at various speeds (15–75 MPH) and at stops
Symptoms owners cite: Engine stalls without warning while driving or at red lights; Vehicle fails to restart after stalling; Loss of motive power; No warning lights in most cases; Elevated RPM after restart but limited speed capability (max 29 MPH reported in one case)
Repairs/costs cited: Dealer diagnosis confirms high-pressure fuel pump failure; recall 22V767000 replacement parts unavailable for most vehicles. One vehicle (28,000 miles) reported being towed but not repaired; another (102,000 miles) required additional low-pressure fuel pump repair at owner's expense.
Recalls/TSBs owners mention: NHTSA Campaign Number 22V767000 (Fuel System, Gasoline, Engine) issued; however, replacement parts on national backorder or limited distribution. Manufacturer confirmed parts were not yet available and informed one owner that parts distribution was limited with dealer-imposed 14-day order limits.
Metal particles found in fuel filter during fuel system inspection after pump failure, indicating internal component degradation. Requires complete fuel system replacement rather than pump alone.
When: Discovered during diagnosis after pump failure; mileage not specified in this complaint
Symptoms owners cite: Metal debris discovered in fuel filter; Fuel system contamination
Repairs/costs cited: Entire fuel system needs replacement; parts unavailable, vehicle deemed not usable by owner.
Recalls/TSBs owners mention: No manufacturer assistance provided; owner unable to complete repair due to parts unavailability.
Engine hesitation during acceleration from stopped position, particularly at traffic lights, with check engine warning light illuminating. Dealer unable to reproduce failure; owner felt unsafe enough to return vehicle to dealer.
When: 6,700 miles
Symptoms owners cite: Engine hesitates when depressing accelerator at red lights; Check engine warning light illuminated; Failure occurs on multiple occasions
Repairs/costs cited: Mechanic could not duplicate failure; vehicle eventually sold back to dealer due to safety concerns.
Recalls/TSBs owners mention: NHTSA Campaign Number 22V767000 issued; replacement parts unavailable.
Transmission shifts into park without driver input while making a left turn. Failure persists after restart following engine cool-down. Related to fuel system campaign recall.
When: 30,000 miles
Symptoms owners cite: Vehicle shifts into park without warning during left turn; Failure persists after restart
Repairs/costs cited: Confirmed by dealer as fuel system issue related to recall 22V767000; repair parts unavailable.
Recalls/TSBs owners mention: NHTSA Campaign Number 22V767000 issued; replacement parts not available.
High-pressure fuel pump replaced under recall 22V767000, but check engine light remains and vehicle experiences additional undisclosed failures. Requires multiple return visits to dealer for same repair without resolution.
When: 27,803 miles
Symptoms owners cite: Check engine warning light illuminated; Vehicle stalls; Multiple undisclosed failures occur after recall repair
Repairs/costs cited: Vehicle taken to dealer approximately five times for same repair; failures not resolved.
Recalls/TSBs owners mention: NHTSA Campaign Number 22V767000 (pump replacement); repair did not fix the root issue.
After CP4 high-pressure fuel pump was replaced under undisclosed 2024 recall, secondary fuel pump (located in engine compartment) fails with no fuel reaching fuel housing. Fuel starvation leads to no-start condition.
When: Approximately 85,000 miles
Symptoms owners cite: Vehicle fails to start; Unable to jump-start; No fuel reaching fuel housing
Repairs/costs cited: Secondary fuel pump replacement required; owner declined due to out-of-pocket cost after previous recall repair.
Recalls/TSBs owners mention: No manufacturer response; repair cost borne by owner.
Synthesized from 26 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
The contact owns a 2021 Ram 1500. The contact stated that the check engine warning light illuminated. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 22V767000 (Fuel System, Gasoline, Engine); but the repair failed to fix the vehicle. The contact stated that the vehicle had experienced several other undisclosed failures after the recall repair. The vehicle was taken…
It's a documented issue but not catastrophic. 26 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
Across the 13 complaints that reported odometer mileage, most fuel system failures cluster between 25,810 and 38,000 miles, with the median around 30,000. A quarter of owners report trouble before 25,810; a quarter make it past 38,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover fuel system issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.