GM LLT engine
Content
The 3.6-liter V6 General Motors LLT engine was produced in the US and Canada from 2007 to 2017 and was installed on the Cadillac CTS, STS, as well as Chevrolet Traverse, Buick Enclave and GMC Acadia crossovers. This power unit is essentially a modification of the LY7 engine with direct fuel injection.
The High Feature engine family also includes: LY7, LF1, LFX and LGX.
Technical characteristics of the GM LLT 3.6 liter engine
| Exact volume | 3564 cm³ |
| Supply system | direct injection |
| Internal combustion engine power | 280 - 315 HP |
| Torque | 350 - 380 Nm |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Bore | 94 mm |
| Piston stroke | 85.6 mm |
| Compression ratio | 11.3 |
| Features of the internal combustion engine | DOHC |
| Hydraulic compensator. | Yes |
| Timing drive | chain |
| Phase regulator | Dual VVT |
| Turbocharging | no |
| What kind of oil to pour | 5.7 liters 5W-30 |
| fuel type | AI-95 |
| Ecologist. class | EURO 4/5 |
| Exemplary. resource | 280 000 km |
The weight of the LLT engine according to the catalog is 180 kg
The LLT engine number is located at the junction of the block with the box
Fuel consumption ICE Cadillac LLT
On the example of a 2010 Cadillac CTS with an automatic transmission:
| City | 16.6 liters |
| Track | 8.7 liters |
| Mixed | 11.6 liters |
Which models are equipped with the LLT 3.6 l engine
| Enclave 1 (GMT967) | 2008 – 2017 |
| LaCrosse 2 (GMX353) | 2009 – 2011 |
| CTS II (GMX322) | 2007 – 2011 |
| STS I (GMX295) | 2007 – 2011 |
| Camaro 5 (GMX521) | 2009 – 2011 |
| Crossing 1 (GMT561) | 2008 – 2017 |
| Acadia 1 (GMT968) | 2008 – 2016 |
| Outlook 1 (GMT966) | 2008 – 2010 |
Disadvantages, breakdowns and problems of the internal combustion engine LLT
This is a completely reliable motor, but it has a small timing chain
This is especially true for the units of the first years, their chain stretched up to 100 km
Also, a lot of trouble can be thrown by a capricious direct fuel injection system.
Like all direct injection engines, it is prone to valve deposits.
Monitor the condition of the cooling system: radiators are leaking, the pump does not run for long
