Engine Nissan VQ23DE

The 2.3-liter Nissan VQ23DE engine (or VQ23 for short) was introduced in 2003 as a replacement for the junior representative of the popular V6 engine line and was installed only on the Teana sedan and its clones. This power unit was produced in the only version of the boost for 173 hp and 225 Nm.

The VQ20 series also includes internal combustion engines: VQ20DE, VQ25DE, VQ25DET, VQ25DD and VQ25HR.

The engine was installed on:

  • Nissan Cefiro 4 (J31) in 2003 – 2008;
  • Nissan Teana 1 (J31) in 2003 – 2008;
  • Samsung SM5 2 (EX1) in 2005 – 2010;
  • Samsung SM7 1 (EX2) in 2004 – 2011.

Specifications

Start of production 2003
Displacement, cc 2349
Fuel system distributed injection
Power output, hp 173
Torque output, Nm 225
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 85
Piston stroke, mm 69
Compression ratio 9.8
Features NDIS
Hydraulic lifters no
Timing drive three chains
Phase regulator at the CVTC intake
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.0
Fuel type 95
Euro standards EURO 3/4
Fuel consumption, L/100 km (for Nissan Teana 2007)
— city
— highway
— combined
13.7
8.3
10.3
Engine lifespan, km ~320 000
Weight, kg 180

Disadvantages of the VQ23DE engine

  • The main problem with these engines is that catalyst crumbs get into the combustion chamber;
  • If your oil consumption exceeds 1 liter per 1000 km, check the cylinders for scuffing;
  • A lot of complaints about floating speed due to contamination of the idle valve;
  • Monitor the thermal regime of the motor, overheating quickly leads to warping of the cylinder head;
  • Closer to 200,000 km of run, it usually already stretches and the timing chain begins to rattle;
  • There are leaks from the camshaft position sensors or from under the valve cover.

Leave a Reply

Your email address will not be published. Required fields are marked *