Chevrolet Aveo/Lacetti 1.4 F14D3 Engine

F14D3 engine specifications

The F14D3 engine has been in production at the GM DAT plant since 2004 to the present day. This inline four-cylinder unit features a cast iron cylinder block and an injector feed system. Each cylinder is equipped with four valves. Piston stroke is 73.4 mm and cylinder diameter is 77.9 mm. The compression ratio of the engine is 9.5.

The engine displacement is 1399 cubic centimeters. Engine power reaches 94 horsepower at 6200 rpm and torque is 130 Nm at 3400 rpm.

It is recommended to use fuel with an octane rating of 95 to run the engine. It also meets the Euro 4 environmental standards. Fuel consumption for Chevrolet Aveo/Lachetti cars with this engine is 8.6 liters per 100 km in the city, 6.1 liters per 100 km on the highway and 7 liters per 100 km in mixed mode. Oil consumption does not exceed 0.6 liters per 1000 km.

The recommended oil for F14D3 engine in Lacetti/Aveo 1.4 cars is 10W-30, and in areas with low temperatures – 5W-30. The capacity of the lubrication system is 3.75 liters, and it is recommended to pour about 3 liters when changing the oil. Oil change is carried out once in 15000 km.

According to the factory, the engine resource for Chevrolet Aveo/Lachetti cars is not specified, but in practice it can reach from 200 to 250 thousand kilometers.

Faults and repair of the engine Chevrolet Aveo / Lacetti 1.4

The F14D3 engine was developed in the early 2000s specifically for small cars. In fact, it is a motor from Opel (X14XE/Z14XE), created in 1994. Its CMM system parameters are the same, and many parts are interchangeable, although this is not officially stated anywhere. The F14D3 engine is characterized by the presence of hydrocompensators, which eliminates the need to adjust valve clearances. Engine power on Aveo 1.4 cars is also quite decent for its volume. For normal operation, gasoline with an octane number not lower than 95 is required, but it also works fine on 92.

The motor has an EGR valve, which helps to reduce harmful emissions in the exhaust by re-combusting them in the cylinders.

The timing drive of this engine is belt-driven, so it is recommended to change the belt and rollers every 60 thousand kilometers to avoid breakage and subsequent breakage of valves.

Now let’s move on to the disadvantages, which, unfortunately, are not few …. One of the most common is moving valves. This is due to a small gap between the valve and the sleeve, and also due to the formation of soot, which makes it difficult for the valve to move. If your Aveo/Lacetti trots, runs erratically, stalls, and loses power, this is probably the problem. To prevent this problem, it is recommended to use quality gasoline, warm up the engine to 80 degrees and only then start driving. Also, find out if the cylinder head was repaired when you bought the car used, otherwise you will have problems. This problem was eliminated in 2008 with the release of new valves and increased clearance, after which the motor became known as F14D4.

Another cause of engine trotting can be related to the injectors of a special design, which are often clogged with dirt, causing cold engine trotting and unstable revs. If that doesn’t help, check the throttle and ignition coils.

Sometimes the thermostat can fail and the engine stops warming up to operating temperature or warms up too slowly. It is recommended to change the thermostat every 50,000 miles.

If your engine stops accelerating, loses traction, etc., you may have a clogged fuel pump screen, failed high voltage wires, or a problem in the catalytic converter.

A common cause of oil leaks is a valve cover gasket. This can lead to problems with the high voltage wires. It is recommended to change the gasket every 40k miles.

Noise and knocking in the Aveo/Lacetti 1.4 engine is often associated with hydrocompensator problems. Also detonation can be caused by a failed catalytic converter.

Overheating of the Aveo or Lacetti engine, although infrequent, but quite possible phenomenon. The reasons may be in a clogged radiator, broken pump or thermostat.

The EGR valve is not flawless and can be clogged with carbon deposits due to low-quality fuel, which leads to reduced engine power and other problems. This can be dealt with by disabling this system.

With proper operation, using quality fuel, warming up the engine and timely oil changes, the engine can last about 200 thousand kilometers without serious problems. If you need something more dynamic, pay attention to F16D3.

Chevrolet Aveo / Lacetti 1.4 F14D3 engine number

The number is located in the upper right corner of the cylinder block, on a thickening. Find it and treat it with rust converter or other protective agents, these places like to rust well to the state of absolute unreadability and then you are waiting for expertise, waste of time and money.

Tuning engine F14D3

Speaking of tuning, what is the first thing that comes to your mind? Chip it? Let’s take a look at the options for chip tuning.

Chip tuning, engine flashing

Looking for a tuning studio that can flash a sporty firmware. What do they promise us there? A little more than 100 hp at the output and smooth traction. However, in practice, the expected increase, if there will be, will be extremely insignificant. We reject the illusion that the motor will be transformed – it will not happen. Do you want to feel a real increase in power? Then put sport camshafts on Aveo/Lacetti cars. Shafts with phase 275 and lift 9,75 are available. They are not so aggressive and will not cause any inconvenience. We add to them cut gears, exhaust system 4-2-1, flash under this set and get about 115-120 hp, real driving power. The same approach can be used for F16D3, where we get 120-125 hp. If this does not satisfy you and you want to experiment, you can bore the intake and exhaust passages, remove sharp edges, grind the passages and install enlarged valves, this will also give a power gain.

Boring to 1.8 liter for Aveo/Lacetti F14D3

The cylinder block for the F14D3, F16D3 and F18D3 is the same, which means we can install the 88.2mm stroke crankshaft from the F18D3, along with the appropriate connecting rod and offset pin piston. We then bore the cylinder for an 80.5mm piston. It is not difficult to find masters who specialize in this on the Internet. According to reviews, the car goes a little better, and with the installed shafts, exhaust system and proper tuning gives more than 140 hp. However, the disadvantage of increasing the volume is a high price.

Turbine installation on Aveo/Lacetti 1.4

Here we will have to do some work. We will need a manifold under the turbine, the turbine itself (for example, TD04L), oil supply system for the turbine, intercooler, pipelines. We also need to replace the pistons with reinforced pistons with wells to reduce compression ratio. The camshafts should not be too wide and should be about 270 degrees phase. This equipment requires online tuning. Your 1.4L motor will end up producing about 160-180 hp.

MOTOR RATING: 4-