GM LY2 engine
Content
The GM LY4.8 or Vortec 8 2-liter V4800 engine was produced by the company from 2006 to 2017 and was installed on Tahoe and Yukon SUVs, Silverado pickups, Express and Savana minibuses. In 2009, this unit received a variable valve timing system and its L20 index.
The Vortec IV line also includes internal combustion engines: LY5, LFA and L92.
Technical characteristics of the GM LY2 4.8 liter engine
| Exact volume | 4806 cm³ |
| Supply system | distribution injection |
| Internal combustion engine power | 260 - 305 HP |
| Torque | 400 - 415 Nm |
| Cylinder block | cast iron V8 |
| Block head | aluminum 16v |
| Bore | 96 mm |
| Piston stroke | 83 mm |
| Compression ratio | 9.1 |
| Features of the internal combustion engine | OHV |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | with 2009 years |
| Turbocharging | no |
| What kind of oil to pour | 5.7 liters 5W-30 |
| fuel type | AI-92 |
| Environmental class | EURO 3/4 |
| Approximate resource | 400 000 km |
Fuel consumption ICE Chevrolet LY2
Using the example of a 2008 Chevrolet Tahoe with an automatic transmission:
| City | 13.9 liters |
| Track | 9.0 liters |
| Mixed | 11.9 liters |
Which cars were equipped with the LY2 4.8 l engine
| Express 2 (GMT610) | 2006 – 2017 |
| Silverado 2 (GMT901) | 2006 – 2013 |
| Tahoe 3 (GMT921) | 2006 – 2009 |
| Savannah 2 (GMT610) | 2006 – 2017 |
| Saw 3 (GMT902) | 2006 – 2013 |
| Yukon 3 (GMT922) | 2006 – 2009 |
Disadvantages, breakdowns and problems of the ICE LY2
Keep an eye on the condition of the radiator and water pump, there are many problems from overheating
The use of cheap oil often results in wear of the camshaft liners
From the left fuel, the throttle quickly becomes dirty, the fuel pump fails
And cracking of ignition coils often leads to tripling of the power unit
Still here, the exhaust manifold bolts are often unscrewed and its casing falls off
