Owners of 2019 Ram 1500 models describe a cluster of fuel system failures affecting both diesel and standard fuel tanks. The most common complaint centers on high-pressure fuel pump failure occurring between 33,000 and 60,000 miles, causing hesitation during acceleration, stalling under load, and complete loss of power. NHTSA Campaign 22V406000 addresses this diesel fuel system defect, but multiple owners report the necessary parts remained on backorder for months or longer, leaving vehicles inoperable during the recall period.
A second failure pattern involves defective fuel tank filler necks and rollover valves that prevent proper fuel intake. Owners report fuel overflowing from the fill point and repeatedly shutting off mid-refuel, requiring 15–20 minutes to add just 4–5 gallons. One owner experienced severe chemical burns when gasoline splashed onto his arms at 58,000 miles. A faulty rollover valve is molded into the fuel tank itself and cannot be replaced independently; full tank replacement costs around $1,700 according to dealer estimates.
One owner reported abnormal engine noise, burning fuel odor in the cabin, and power loss at highway speed around 50,000 miles. Another experienced fuel gauge failure showing empty when the tank was full. Across complaints, dealers acknowledged several of these issues as known problems but offered minimal assistance, and the manufacturer denied warranty coverage in multiple cases.
Failure modes owners describe
High-pressure fuel pump (HPFP) failure
Diesel fuel pump fails to deliver adequate fuel pressure, causing engine hesitation, loss of power, and stalling. One case involved fuel system contamination that prevented effective repair.
When: 33,000–60,000 miles
Symptoms owners cite: Engine hesitation during acceleration from stop and turning; Vehicle stalling while driving with trailer at slower speeds; No warning light or intermittent illumination; Recurring loss of power; Check engine light (P0300, P0456, P0455, P1DF3 codes in one case)
Codes mentioned: P0300, P0456, P0455, P1DF3
Repairs/costs cited: High-pressure fuel pump replacement; one case found fuel system contamination that rendered repair ineffective; parts unavailable for extended periods (recall 22V406000).
Recalls/TSBs owners mention: NHTSA Campaign 22V406000 (Fuel System, Diesel); parts backordered for months; manufacturer aware but parts not available for two months or longer at time of complaint.
Fuel filler neck and rollover valve defect
Faulty fuel filler neck or rollover valve prevents proper fuel tank venting and allows fuel overflow during refueling. One complaint attributed the issue to a defective rollover valve molded into the fuel tank requiring tank replacement.
When: 15,000–58,000 miles
Symptoms owners cite: Fuel overflow from filler neck during refueling; Fuel pump nozzle shuts off repeatedly before tank is full; Fuel backing up into fuel tube, blocking fuel flow; Gasoline splashing out of filler neck onto driver (one case: chemical burns from gasoline contact at 58,000 miles); 15–20 minutes required to refuel 4–5 gallons
Repairs/costs cited: Fuel tank replacement quoted at $1,700 (rollover valve molded into tank, not replaceable separately). Fuel filler neck replacement needed in at least one case. Vehicles not repaired; manufacturer informed but no assistance offered.
Recalls/TSBs owners mention: Dodge/RAM acknowledged issue and stated fuel tank had been redesigned to address the problem, but warranty repairs were denied in at least one case.
Fuel pump electrical/signal failure (fuel gauge malfunction)
Fuel pump or its sender unit fails, causing the fuel gauge to display incorrect fuel level readings and preventing the fuel system from operating correctly.
When: 14,670 miles
Symptoms owners cite: Fuel gauge shows empty when tank is full; Defective fuel pump detected
Repairs/costs cited: Fuel pump replacement required; repair in progress at dealer at time of complaint.
Recalls/TSBs owners mention: Manufacturer made aware; case number provided.
Engine power loss and burning fuel odor
Vehicle experiences abnormal noise from engine compartment, burning fuel smell in cabin, and sudden loss of power while driving at highway speed.
When: 50,000 miles
Symptoms owners cite: Abnormal sound from under the hood; Burning fuel odor entering cabin through air vents; Loss of automotive power; Electronic throttle warning light illuminated
Repairs/costs cited: Vehicle towed to dealer; remained for investigation but not repaired.
Recalls/TSBs owners mention: Manufacturer made aware of the failure.
Recall part availability delays (22V406000)
High-pressure fuel pump recall parts remain unavailable for extended periods, preventing timely repairs on vehicles with known fuel system defects. Multiple owners report parts on backorder for months.
When: Unknown (recall notification received; parts not available)
Symptoms owners cite: Recall notification received but parts unavailable; Manufacturer exceeded reasonable repair timeframe
Repairs/costs cited: No repairs completed due to parts shortage; multiple owners waiting indefinitely for recall work.
Recalls/TSBs owners mention: NHTSA Campaign 22V406000 (Fuel System, Diesel); manufacturer and dealers confirmed parts unavailable; no estimated availability provided in complaints.
Synthesized from 17 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.