Probable High Pressure Fuel Pump (CP4) failure resulting in the vehicle stalling without warning. This event has not yet occurred, however due to the high number of vehicles involved in the Stellantis recall which are using the same CP4 pumps which are known to fail, I am scared to drive my truck as the CP4 pump may fail at any time. I have spoken to MANY other GM truck owners who have experience…
2016 Chevrolet 3500 engine problems
severe 3 complaints filed with NHTSA · avg repair $3,100
Complaints
3
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 2 most recent
TL* THE CONTACT OWNS A 2016 CHEVROLET SILVERADO 3500. WHILE DRIVING 65 MPH, THE REDUCED ENGINE POWER MODE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO MEDVED CHEVROLET BUICK GMC (LOCATED AT 1506 S WILCOX ST, CASTLE ROCK, CO 80104, (303) 688-3137) WHERE IT WAS DIAGNOSED THAT THE INDIRECT FUEL INJECTOR FILTER AND A FRACTURED PARTICULATE FILTER NEEDED TO BE REPLACED. THE CONTACT STATED THA…
Common questions
How serious is the engine problem on the 2016 Chevrolet 3500?
It's a meaningful issue. 3 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?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.
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