Is the Vortec 5300 prone to excessive oil consumption?
Is the Vortec 5300 prone to excessive oil consumption?
Vortec 5.3 Excessive Oil Consumption One of the most prevalent issues on the Vortec 5300 engine occured in Gen IV engines from model year 2010 to 2014. These 5.3 vortec’s are prone to excessive oil consumption, significantly above standard oil consumption levels.
What causes excessive oil consumption in a GMC Vortec?
A lawsuit has been filed on behalf of certain 2010-2013 GM owners with 5.3L V8 Vortec 5300 engines. According to the plaintiffs, changes to the engine design allow oil to enter the combustion chamber, leading to excessive oil consumption and premature engine failure.
Why does the Vortec V8 burn so much oil?
Just as in previous lawsuits over the alleged Vortec V8 oil consumption issues, this filing also claims the engine’s oil pressure relief valve sprays oil directly at the piston skirts, which can overload the rings and allow oil to sneak past into the combustion chamber, where it is then burned off.
How many engine variations does a Chevy Vortec have?
The engine went through two different variations during its lifespan, Gen III and Gen IV. Across both generations the Vortec 5.3 had 10 different engine variations used across the Silverado, Sierra, Suburban, Avalance, Yukon, Tahoe, and a number of other less popular Chevy and GMC vehicles.
Vortec 5.3 Excessive Oil Consumption One of the most prevalent issues on the Vortec 5300 engine occured in Gen IV engines from model year 2010 to 2014. These 5.3 vortec’s are prone to excessive oil consumption, significantly above standard oil consumption levels.
What should the oil pressure be in a Vortec?
But after the engine warmed up, the oil pressure dropped below normal at idle and the engine noise (probably lifters) returned. Raising the engine speed to above 1000 rpm causes the oil pressure to increase to about 45 psi. If the engine speed is increased even more, oil pressure tops out at about 55 psi.
What causes low oil consumption in a Vortec V8?
As Car Complaints reports, plaintiffs in this class action suit claim that affected Vortec V8 engines have faulty piston rings that fail to keep oil in the crankcase. This can lead to low oil levels, which can cause unacceptable heat and friction levels in the engine and potentially damage the engine internals.
The engine went through two different variations during its lifespan, Gen III and Gen IV. Across both generations the Vortec 5.3 had 10 different engine variations used across the Silverado, Sierra, Suburban, Avalance, Yukon, Tahoe, and a number of other less popular Chevy and GMC vehicles.
