The 1MZ-FE is a 3.0-liter V6 gasoline engine produced by Toyota from 1993 to 2007 as a replacement for the 3VZ-FE. Back in the day, this engine was widely used in the Toyota Camry, Avalon, Highlander, and some Lexus models. During the last years of production, the 1MZ was gradually moved out by a 3.3-liter engine from the same MZ family - 3MZ-FE.
The 1GR-FE engine has an aluminum cylinder block in a V arrangement at a bank angle of 60°. This engine's firing order is 1-2-3-4-5-6. Cylinder bore and piston stroke are 94.0 mm (3.7 in) and 95.0 mm (3.74 in), respectively. Compression ratio rating is 10.0:1 or 10.4:1. The engine has "spiny type" cast-iron cylinder liners.
The redesigned ute now boasted a new 4.0L V6 with dual variable valve timing with intelligence (VVT-I). This is important because dual VVT-I increases both performance and mpg. Interestingly, there is an exceedingly rare version of the 2010 MY only 4Runner that was powered by a 2.7L I4 engine mated to a four-speed automatic transmission. #1 · Nov 8, 2011. In December of 2010 my VVT oil line burst, only my AC light was indicating a malfunction. While enroute to the dearlership the car would not accelerate and was making odd noises. Once in service I was told that the line burst and there was no oil in the vehicle, and that there was a recall (which I had never been notified of). Why Toyota VVT-i engine may start to consume oil and how to do oil leak test. Oil consumption is bad signal. Ignatz. 9854 posts · Joined 2009. #2 · Dec 13, 2020. I got 275,000 miles out of my 2.4 world engine. I sold my Patriot to a friend and it's still on the road. Never any internal problems, but I replaced the TB around 250,000 miles. It was starting to use maybe 1/2 quart of oil between changes before I sold it.
As a rule, when more revolutions our engine has, more air is needed by cylinders. That's where variable valve timing comes in. Its main function is to modify the phase angles of the distribution diagram, adjusting the camshaft according to the needs of the moment. This VVT system is controlled by the ECU, the electronic control unit that
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