2015 Chevrolet Silverado 3500 Engine Problems

Catastrophic failure of the CP4 fuel pump

NHTSA ID

11698006

Incident

Oct 9, 2024

Exhaust filter plugged due to turbo not working properly. Been at dealership going on 7 weeks This is the 3rd new vehicle we have had this has happened to.

NHTSA ID

11697982

Incident

Sep 8, 2025

The contact owns a 2015 Chevrolet Silverado 3500. The contact stated that while driving 65 MPH, the message "Fuel Filter Needed to be Replaced" followed by the "Engine Power Reduced" were displayed on the instrument panel. The contact then stated that fuel started leaking from the vehicle and the vehicle stalled. The contact was left stranded in the middle of the road; a tow truck was called, and the vehicle was towed to an independent diesel mechanic. The mechanic performed a diagnostic test, and the contact was informed that the fuel pump had disintegrated which caused debris from the fuel pump to leak into the fuel system. The contact was provided an estimate to replace the fuel pump, fuel pump filter, fuel pump housing, and the fuel injectors. The manufacturer was notified of the failure and referred the contact to the NTHSA Hotline to file a complaint. The vehicle had yet to be repaired. The failure mileage was approximately 270,000.

NHTSA ID

11666246

Incident

Jun 9, 2025

Mileage

270,000 mi

TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 3500. THE CONTACT STATED WHILE PARKED, THE HIGH-PRESSURE FUEL PUMP FAILED WITHOUT WARNING. THE CONTACT STATED HE HEARD AN ABNORMAL NOISE AND TURNED OFF AND RESTARTED THE VEHICLE HOWEVER, THE VEHICLE SHUTOFF WITHOUT WARNING. THE CONTACT HAD THE VEHICLE TOWED TO WOODLAND CHEVROLET (530 QUALITY CIR, WOODLAND, CA 95776) WHERE THE VEHICLE WAS DIAGNOSED WITH A HIGH-PRESSURE FUEL PUMP FAILURE. THE VEHICLE REMAINED AT THE DEALER UNREPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A CASE WAS FILED. THE FAILURE MILEAGE WAS 180,000.

NHTSA ID

11355336

Incident

Sep 4, 2020

Mileage

180,000 mi

CP4 FUEL PUMP FAILURE AND ENGINE FAILURE- STARTED TRUCK THAT MORNING, 5 MIN LATER IT SHUT OFF AND HASN'T STARTED AGAIN. HUB EXPLODED MAKING 4WHEEL DRIVE IMPOSSIBLE WHEN DRIVING DOWN HEY. AC BLENDER STOPPED WORKING AC VENTS BLOW HOT AIR ON RIGHT SIDE OF DASH WHILE IN MOTION.

NHTSA ID

11353898

Incident

Sep 7, 2020

Mileage

96,000 mi

TL* THE CONTACT OWNS A 2015 CHEVROLET SILVERADO 3500. WHILE DRIVING 65 MPH, THE VEHICLE LOST POWER WITHOUT WARNING. THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THERE WERE METAL FRAGMENTS INSIDE THE ENGINE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 96,000.

NHTSA ID

10914012

Incident

Sep 30, 2016

Mileage

96,000 mi

TL* THE CONTACT OWNED A 2015 CHEVROLET SILVERADO 3500. WHEN THE VEHICLE WAS SHIFTED IN REVERSE, THE DRIVER IMMEDIATELY OBSERVED SMOKE COMING FROM THE ENGINE COMPARTMENT. AFTER ALL THE PASSENGERS WERE EVACUATED FROM THE VEHICLE, THE HORN SOUNDED AND THE VEHICLE WAS ENGULFED IN FLAMES WITHIN 5 TO 10 MINUTES. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THE VEHICLE WAS DEEMED DESTROYED. A POLICE REPORT WAS FILED. THERE WERE NO INJURIES. THE FAILURE MILEAGE WAS APPROXIMATELY 35,000.

NHTSA ID

10865421

Incident

May 16, 2016

Mileage

35,000 mi

BOUGHT THIS VEHICLE NEW FROM DEALER IN SEPT 2015 WITH THE DEALER INSTALLED FLATBED ALREADY ON IT, ON THEIR DEALERSHIP LOT. FUEL MILEAGE WAS POOR FROM THE FIRST, "ENGINE LIGHT ON" FROM THE FIRST; TRANSMISSION DRAGGING FROM THE FIRST DAY WE BOUGHT IT. SERVICE ADVISORS AND THE SALESMAN SAID DRIVE IT AND IT WILL CLEAR OUT. IT GOT WORSE. THE DEALERSHIP FINALLY SENT IT TO THE COMPANY WHO INSTALLED THE FLATBED FOR THEM, AND THEY SAID THERE WAS AN ELECTRICAL SHORT IN THE FUEL PUMP WHICH THEY REPLACED. THE AUTOMATIC TRANSMISSION DID NOT SHIFT SMOOTHLY WHEN WE GOT IT BACK, AND THE DEALERSHIP SAID "IT PERFORMS AS DESIGNED". BUT, THIS IS AN AUTOMATIC 6 SPEED CHEVROLET TRANSMISSION IN A 2015 CHEVROLET 3500 SILVERADO WITH A 6.0 GASOLINE ENGINE. THE TRANSMISSION DRAGS FROM 5TH GEAR AND THEN DRAGS IN 6TH GEAR. I HAVE TO LET OFF THE GAS PEDAL FOR THE TRANSMISSION TO SHIFT. IF I LET IT DRAG OUT, IT USES FUEL AND SOUNDS LIKE I AM STUCK IN GEAR. WE HAVE TAKEN IT TO 3 DIFFERENT CHEVROLET DEALERSHIPS, AND THEY SAY SOMETHING IS WRONG BUT WE CAN'T TAKE IT APART TO FIX IT. THE SERVICE MANAGER SAID FOR ME TO DRIVE IT UNTIL THE TRANSMISSION "BLOWS UP BECAUSE IT IS UNDER WARRANTY". I TOOK IT TO A RELIABLE TRANSMISSION SHOP, BUT THEY WON'T TOUCH IT BECAUSE IT IS UNDER WARRANTY, BUT THEY SAID THAT THERE IS SOMETHING WRONG THAT IT DOES NOT SHIFT SMOOTHLY INTO ALL 6 GEARS. IT ONLY HAS 3600 MILES. WE HAVE TO DRIVE IT ONCE A WEEK TO KEEP THE BATTERY CHARGED. I DON'T PULL OR HAUL ANYTHING WITH IT. THIS IS HAPPENING BOTH IN CITY DRIVING AND HIGHWAY DRIVING.

NHTSA ID

10860076

Incident

Sep 28, 2015