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SUVs Toyota RAV4 Toyota RAV4 2006
4666 messages, Last post on Nov 26, 2009 at 4:56 PM
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Replying to: mark19 (Aug 02, 2007 7:00 pm) Details here: http://www.angelfire.com/ky3/gabby/intake_mod.htm Disclaimer: my 3.5l V6 Sienna wasn't hesitating, but I did this anyway, and my mileage has improved. |
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Replying to: ateixeira (Aug 03, 2007 6:44 am) |
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Replying to: cbmorton (Aug 06, 2007 3:15 pm) the update I was mentioning was not for the v-6 but for the 4cyl. And yes updating the software inside the computer (ecu, brain) will definitely help fuel economy. |
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Replying to: cbmorton (Aug 06, 2007 3:15 pm) http://www.siennaclub.org/forum/index.php?showtopic=15867&st=0&#entry122284 |
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Replying to: cbmorton (Aug 06, 2007 3:15 pm) The ACIS is realized by using a bulkhead to divide the intake manifold into 2 stages, with an intake air control valve in the bulkhead being opened and closed to vary the effective length of the intake manifold in accordance with the engine speed and throttle valve opening angle. This increases the power output in all ranges from low to high speed. • When the intake control valve closes: While the engine is running at medium speed under high load, the ECM controls the actuator to close the control valve. As a result, the effective length of the intake manifold is lengthened and the intake efficiency, in the medium speed range, is improved due to the dynamic effect of the intake air, thereby increasing power output. • When the intake control valve opens: Under any condition except when the engine is running at medium speed under high load, the ECM controls the actuator to open the control valve. When the control valve is open, the effective length of the intake air chamber is shortened and peak intake efficiency is shifted to the low to high engine speed range, thus providing greater output at low to high engine speeds.
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Replying to: cbmorton (Aug 07, 2007 7:23 am) I dunno, my V6 was quick before, quick now, no hesitation before or after. My mileage did improve but it was breaking in and that might have happened anyway. For people reporting hesitation, though, it's something worth considering, IMO, if their engine has a similar intake. |
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Hi Folks, taking a look at CR-V and RAV4. I am concerned about the engine revving and not moving the car forward. My folks 03 Explorer is the SLOWEST transmission to shift - its delay is very pronounced. I dont think its unsafe since the car is slow even when you floor it. Is this on all 4-cyl models? Just some? What is the reasons for the hesisation? I see this happens with Camry's and Solaras as well. I just want a safe, reliable auto for my fiance. IF the tranny is like the explorer's - just lazy, I don't care I am used to Fords 
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Replying to: 01taurussel (Oct 01, 2007 5:53 pm)
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Replying to: raviola4 (Oct 02, 2007 3:21 am)
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