NHTSA Complaint #11630744 — 2018 GMC SIERRA 1500

ENGINE issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11630744
Vehicle	2018 GMC SIERRA 1500
Component	ENGINE
Date of Incident	December 11, 2024
Date Filed	December 14, 2024
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	OH

Consumer Description

This vehicle has 88400 miles, it out of warranty, which I know this, I use AMSOIL ASM SIG SERIES SYN SAE 0W-20 , 5.3L GAS. TWO YEARS AGO, I CHANGED OIL AT RICHARD BUICK GMC IN DAYTON, OH AND SENT A SAMPLE OF THE OIL TO OIL ANALYZERS FOR AN ANALYSIS, THEY SET IT BACK, IT SHOWED THERE WAS A LEVEL 4 SEVERE GASOLINE IN THE OIL. THEY CHANGED THE HIGH SPEEP FULE PUMP, BOTH IN JECTORS, AND IT THOUGHT IT WAS FIXED, ON 12 - 11 -24 HAD THE OIL CHANGED AT LOCAL BOYS SERVICE CENTER, SENT A SAMPLE OF THE OIL-TO-OIL ANALYZERS AND RECIEVED BACK, A SEVERE FUEL LEAK OF GASOLINE IN THE OIL, i DON'T THINK THAT MANY DRIVERS WHO HAVE THIS VEHICLE KNOW ABOUT THIS DANGEROUS PROBLEM, IT COULD CAUSE AN ENGINE FAILURE OR EVEN WORSE, GENERAL MOTORS NEEDS TO FIX THIS PERBLEM.

Related Complaints for the 2018 GMC SIERRA 1500

Other ENGINE Complaints

#11714207 — January 29, 2026 — The contact owns a 2018 GMC Sierra 1500. While starting the vehicle, it was shaking violently, with reduced power. Th...

#11712288 — January 20, 2026 — I OWN A 2018 GMC SIERRA DENALI ULTIMATE, The truck has the 6.2 engine which had the lifter issue as stated with the c...

#11711924 — January 19, 2026 — The lifters in my engine collapsed. This caused a push rod to be bent and the cam shaft to be damaged causing thousan...

#11709032 — January 6, 2026 — Engine failure. 6.2l with AFM system Extreme oil consumption Heavy metal in oil Loud ticking 120789 miles Purchase ...

#11705013 — December 15, 2025 — I have 125,000 miles on my truck. I was traveling with my grandkids in the back seat. We were going through a four wa...

Recent Complaints for the 2018 GMC SIERRA 1500

#11719391 — POWER TRAIN — February 20, 2026 — The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle j...

#11718452 — POWER TRAIN — February 17, 2026 — The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at various speeds, there was an abnorm...

#11714207 — ENGINE AND ENGINE COOLING — January 29, 2026 — The contact owns a 2018 GMC Sierra 1500. While starting the vehicle, it was shaking violently, with reduced power. Th...

#11712288 — POWER TRAIN — January 20, 2026 — I OWN A 2018 GMC SIERRA DENALI ULTIMATE, The truck has the 6.2 engine which had the lifter issue as stated with the c...

#11711245 — POWER TRAIN — January 15, 2026 — The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle w...