1 dirty or cloggedair filter element . 2 Low tire presure , or incorrect tire size. 3 dirty or clogged fuel jets. 4 emissions system not funtioning properly .
If the egr or O2 sensor were a problem, the check engine light would be on. Many factors affect fuel consumption including Tune up parts such as plugs, fuel filter or air filter. Cleaning the throttle bore and intake valves can also have an effect. At some non-regulated gas stations such as reservations may not be giving you a full gallon even though the pump gauge says it is. As mentioned above tire pressure is a factor. Anything that is putting a drag on the movement of the vehicle such as a dragging brake will hurt miliage. Driving habits will greatly change miliage. Addition weight such as a truck cap or additional passenger, added on will hurt miliage. Davey@buffalo.com
Check for vacuum leaks, PCV leakage. There is also possibility of winter running conditions that usually run less miles per tank. Some tyres have better grip with less mileage per gallon.
There could be several reasons why a Toyota Sienna will not start. the most common problem would be a dead battery.
no
where is the classis location for toyota sienna
toyota sienna 2001
NO there is a 3yr 36,000 mile warranty on it.
The 2005 Toyota Sienna has 24 valves.
The 2013 Toyota Sienna has 24 valves.
The 2010 Toyota Sienna has 24 valves.
The 2004 Toyota Sienna has 24 valves.
The 2001 Toyota Sienna has a V6 engine.
The 2003 Toyota Sienna has 24 valves.
The 2014 Toyota Sienna has a V6 engine.