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L91LXT

1.6 16v DOHC 103-109 hp (L91/LXT, 2004-2011) engine: faults and reliability

GM Daewoo E-TEC II 1.4 and 1.6 16v (Lacetti/Optra and Aveo de primera generación) version

With caution

AutoCentrum records valve problems in the first Lacetti units, although it says the 109 hp 1.6 shows no excessive faults, and Autokult cites minor lambda sensor problems on the Aveo 1.6.[1][2][3]

Years
2004–2011
Power
103–109 hp
Faults that affect it
3
0 of high or critical severity
Cars that use it
2
in our database

11 sourcesHow we work

What changes in this version

Four cylinders of 1,598 cc with double overhead camshafts and 16 valves: 103 hp (77 kW) and 145 Nm according to Wikipedia, 109 hp in the European Lacetti and 103-106 hp in the Aveo according to the Polish press. Timing belt. Fitted to the Lacetti/Optra and the Aveo.[2][4][5][6]

Engine codes of this version: L91, LXT.

Faults of the L91 engine

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Medium severityFrequency: OccasionalCylinder head and blockFaulty valves and ignition faults in the first units (2004-2005)In the first units of the Lacetti 1.4 16v, from 2004-2005, the Polish press documents ignition faults caused by faulty valves, which were repaired under warranty. If they appear outside warranty, the repair can be costly.
  2. 2Low severityFrequency: OccasionalEmissions controlLambda sensor faultsThe Polish press cites minor problems with the lambda sensors of the 16-valve Aveo 1.4 and 1.6, and damage to the second sensor of the Lacetti 1.4 16v. It is described as a minor fault, with no frequency figures.
  3. 3Low severityFrequency: RareLubricationOil consumption and oil leaksThe Polish press mentions oil leaks on the Lacetti 1.4 16v and on the Aveo (crankshaft seal), and high consumption on some Lacettis. These are isolated cases: most owners who comment notice no consumption.

Cars fitted with the L91 engine

Open each car to see all its faults with this engine and what to check before buying it.

Chevrolet

Frequently asked questions

Is the L91 engine reliable?

Our verdict is “With caution”. AutoCentrum records valve problems in the first Lacetti units, although it says the 109 hp 1.6 shows no excessive faults, and Autokult cites minor lambda sensor problems on the Aveo 1.6.[1][2][3]

What faults does the L91 engine have?

The documented ones that affect this version, by importance: faulty valves and ignition faults in the first units (2004-2005) (medium severity), lambda sensor faults (low severity) and oil consumption and oil leaks (low severity).

Which cars use the L91 engine?

Chevrolet Lacetti (2005–2010) and Chevrolet Aveo I (2005–2011).[1][2][5][6][7][8][9][10][11]

Are you buying a car with the L91 engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Bez fajerwerków - Chevrolet Lacetti (2003-2010)AutoCentrum.pl · Motoring press · published 7 April 2012 · consulted 2 November 2026 · in another language
  2. Używany Chevrolet Aveo T200/T250 - typowe awarie i problemyWP Autokult · Motoring press · published 28 January 2012 · consulted 2 November 2026 · in another language
  3. W pierwszych silnikach 1,6 l przecierały się zawory (Chevrolet Lacetti)AutoCentrum.pl (usterki) · Owners' forum · consulted 2 November 2026 · in another language
  4. GM Family 1 engineWikipedia · Other source · consulted 2 November 2026
  5. Chevrolet LacettiWikipedia (de) · Other source · consulted 2 November 2026 · in German
  6. Czy warto kupić: używany Chevrolet Aveo (od 2002 do 2011)AutoCentrum.pl · Motoring press · published 5 March 2013 · consulted 2 November 2026 · in another language
  7. Chevrolet LacettiWikipedia · Other source · consulted 2 November 2026
  8. Chevrolet OptraWikipedia (es) · Other source · consulted 2 November 2026 · in Spanish
  9. Chevrolet Lacetti 1.4 16V - Niełatwo zdobyć zaufanieAuto Świat · Motoring press · published 19 November 2007 · consulted 2 November 2026 · in another language
  10. Chevrolet Aveo (T200)Wikipedia · Other source · consulted 2 November 2026
  11. Chevrolet AveoWikipedia (es) · Other source · consulted 2 November 2026 · in Spanish