Truck making ticking noise from engine from fuel pressure pump cp4?? Makes noise at idle and when in motion sometimes jerks and stalls
2019 RAM 2500 engine problems
severe 24 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
24
Recalls
0
Avg fix
$3,100
2fires
When does it fail?
Of the 24 engine complaints filed for the 2019 RAM 2500, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
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.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
The failure pattern owners describe
The 2019 Ram 2500's engine problems cluster around a defective CP4 high-pressure fuel pump that fails without warning, leaving drivers stranded or losing power at highway speed. One owner lost power at 65 mph with his wife and daughter in the truck, barely reaching the shoulder before a semi passed. Another was on a curved country road with his family when the truck quit at only 6,200 miles. Power loss means no power steering and no power brakes once the engine dies—a genuine hazard in traffic.
The pump's failure contamination wrecks the fuel rail and other engine components; one owner faced a complete engine replacement at 48,000 miles. Owners also report ticking and knocking from the fuel pump, hard idling, stalling, and repeated check-engine codes (P0299, P003A, P006F) before total failure.
Chrysler issued a recall (Y78) to replace these pumps, but parts are critically short. Dealers report getting only a few pumps per week; owners are on waiting lists for four to six months or longer. One dealer told an owner to file his own complaint with NHTSA since there was no repair timeline.
Separate electrical and exhaust fire incidents—fuse boxes melting, flames under the truck at fuel pump stations—have also been reported. One owner discovered her fuse box and harness melted at 80,000 miles; a third-party engineer couldn't determine the cause, and the manufacturer refused recall repair authorization despite a fire-related safety campaign notice.
Same RAM 2500 engine reports on nearby years: 2016 · 2017 · 2018 · 2020 · 2021
Failure modes owners describe
CP4 High-Pressure Fuel Pump Failure
The CP4 fuel injection pump fails without warning, causing loss of engine power, stalling, and inability to restart. When it fails, the pump destroys the fuel rail system with particulate contamination. Owners report difficulty starting, power loss during highway driving, hard idling and stalling, and ticking/knocking noises from the engine. The manufacturer has issued a recall (Y78) but parts availability is severely constrained, with dealers reporting only a few pumps per week or two, leaving owners on waiting lists for months.
When: Reported at mileages ranging from 6,200 to 110,000 miles; failures occur during normal operation without warning
Symptoms owners cite: Sudden loss of power on highway (65 mph, 50 mph, 25 mph); Engine stalling and failure to restart; Hard idling and stalling at idle; Ticking or knocking noise from engine/fuel pump area; Jerking and occasional stalling during motion; Check engine light and service exhaust codes (P0299, P003A, P006F); Power surges prior to complete failure; Vehicle left stranded in dangerous traffic situations
Codes mentioned: P0299, P003A, P006F
Repairs/costs cited: High-pressure fuel pump replacement required; some owners report direct replacement aftermarket pumps are available and dealers have reimbursed parts and labor; recall repair availability extremely limited
Recalls/TSBs owners mention: Recall Y78 issued for 2019-2020 models; NHTSA Campaign 25V720000 related to engine and engine cooling; manufacturer acknowledges the issue but has not produced adequate parts quantities; some dealers refusing to perform recall repair citing lack of parts
Electrical System Fire/Melted Wiring Harness
Fuse box, harness wiring, and electrical cables melt due to electrical fault, creating burning odor and risk of engine compartment fire. One owner heard a loud bang from the vehicle; another discovered flames coming from the fuel injection pump area. The root cause of electrical failure could not be determined by third-party engineer inspection. Incidents fall under NHTSA recall 25V720000.
When: Reported at approximately 80,000 miles and early in vehicle ownership
Symptoms owners cite: Abnormal burning odor inside vehicle (no warning light); Loud bang from vehicle; Smoke coming from engine compartment; Flames visible from fuel injection pump area; Fuse box, harness, and cable melting
Repairs/costs cited: No repair completed; third-party engineer unable to determine cause; manufacturer closed case and refused to allow dealer recall repair
Recalls/TSBs owners mention: NHTSA Campaign 25V720000 (Engine and Engine Cooling); manufacturer closed case and refused recall repair authorization despite recall notice
Exhaust System Overheating/Fire
Exhaust system components overheat excessively, causing hoses and components to glow red hot and ignite. Owners report blue and white smoke from engine compartment, flames underneath the truck on the passenger side from exhaust hoses, and red-glowing exhaust components. One incident required fire extinguisher use at a fuel pump to prevent vehicle fire.
When: Occurs during normal highway driving and city driving; one failure at 110,000 miles with smoke and failed start
Symptoms owners cite: Blue and white smoke from engine compartment; Large volume of smoke from exhaust pipe; Flames visible underneath truck on passenger side; Exhaust hose on fire; Multiple exhaust components glowing red hot; Engine stalling after fire ignition
Repairs/costs cited: High-pressure fuel pump replacement diagnosis mentioned in one case; vehicles not repaired; one vehicle towed to dealer awaiting inspection
Recalls/TSBs owners mention: One case covered under RAM's voluntarily extended 10-year warranty on exhaust issues; manufacturer response unclear in other exhaust fire cases
Engine Mechanical Damage from Fuel Pump Failure
When the CP4 fuel pump fails, it destroys internal engine components. Owners report fuel pump failure causing damage requiring full engine replacement, blown fuel injector pump destroying fuel rail system, and severe engine damage at low mileages.
When: Reported at 48,000 miles and 6,200 miles (six months old)
Symptoms owners cite: Engine knock during low-speed driving; Fuel injector pump blowout; Engine failure requiring complete replacement
Repairs/costs cited: Full engine replacement required in at least one case; vehicles not repaired at time of complaint
Recalls/TSBs owners mention: Manufacturer aware of issues and opened cases; no resolution details provided
Air Intake Heater Grid Bolt Deterioration
Air intake grid heater bolt deteriorates and falls into the intake runner, traveling into cylinder number 6 and causing severe damage to the piston, valve, and cylinder head. Requires expensive repair or complete long-block engine replacement on the 6.7 Cummins engine.
When: Timing not specified in narrative
Symptoms owners cite: Severe piston damage; Valve damage; Cylinder head damage
Repairs/costs cited: Expensive repair or total long-block replacement required
Hydraulic Roller Lifter Arm Failure
Poor quality hydraulic roller lifter arm fails, causing internal engine damage including a broken rod and hole in engine block.
When: Timing not specified in narrative
Symptoms owners cite: Broken rod; Hole in engine block
Turbo Actuator and Boost Loss
Loss of turbo boost and turbocharger functionality, often occurring in conjunction with high-pressure fuel pump issues. Owners report loss of exhaust braking and reduced power output.
When: Timing not specified; associated with fuel pump failures
Symptoms owners cite: Loss of turbo boost; Loss of exhaust brake feature; Reduced engine power; Loss of steering and brakes upon engine shutdown
Codes mentioned: P003A, P006F
Repairs/costs cited: Fuel pump replacement mentioned; manufacturer stated no clear cause for turbo malfunction despite replacement
Recalls/TSBs owners mention: Mopar/Dodge initially refused fuel pump replacement despite recall; eventually agreed to replace but offered no explanation for turbo actuator issues
Synthesized from 24 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
I just purchased a used 2019 Ram on day two check engine light comes on loss of power while driving at highway speed. Dealer is telling me it is codep0299 they checked and cleared code. Now 12/18/ back with dealer for same code p0299 and loss of power or going 8nto limp mode.
I have experienced unexpected loss of power during acceleration, lack of exhaust breaking and engine codes p003a and p006f which I believe are associated with the turbo actuator.
Had engine trouble with your 2019 RAM 2500?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2019 RAM 2500?
It's a meaningful issue. 24 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 11 complaints that reported odometer mileage, most engine failures cluster between 3,000 and 48,000 miles, with the median around 6,000. A quarter of owners report trouble before 3,000; a quarter make it past 48,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine 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.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2019/RAM/2500.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.