Top 10 2004 Toyota Sienna Questions & Answers

well the check engine light on can mean many different issues its just a symbol telling you that your ecu (engine computer) has found an issue with your vehicle it is not a specific indicator of whats going on unless you get the codes pulled from your computer any autozone will pull the codes for free and some shops will also just call around they will not diagnose prob for free though it could be anything vacume leaks - o2 sensor bad ext....as far as your vsc being on most of the time when your check engine light comes on the vsc will light up also does not mean there is an issue with your vsc system....i work as a mechanic for a toyota dealer and see his all the time and check to make sure your gas cap is tight will set check eng and i see it all the time when custs forget to tighhten gas cap if its loose you can get the codes erased hope this helps!!!!

That symbol is the low tire pressure light. You have a tire that is right at the minimum threshold. The light goes off as the tire temperature rises, and, as the temp rises, the internal air pressure also rises slightly. Just check the tires with a good pressure gauge, inflate them to the specs printed on the tag inside your driver's side door, and you will be just fine.

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well to start the front are easy just take the 10mm bolts of the coil packs and unplug connectors then using a spark plug socket or a 7/8 i think will work with an extension and a ratchet loosin and remove tighten new ones to snug then rotate ratchet 180 degrees to get them tight but not to tight ,the rear spark plugs will give you carpel tunnel but are doable remove the airbox tube to the throttle body and remove the pcv valve and hos e on the passenger side in rear so you can axcess the one on the left and remove the 10s and unplug harness just like the front kind of a pain but may be worth the money saved hope this helps

On my 2004 toyota,,,directly behind the passenger side front seat (have to push passenger seat all the way forward to see it, there is a small square flap in the carpet,,,lift that up and underneath is a big bolt which you turn counterclock wise with your spare tire lug wrench and the tire will lower to the ground. thats about it. good luck

Hello, I am a tec. from Puerto Rico your problem does sound like the magnetic clutch. It is located directly on the compresor, over here we change them for around $150 including materials and work.

3.0L Engine

1. Before servicing the vehicle, refer to the precautions section.
2. Disconnect the negative battery cable.
3. Drain the engine coolant.
4. Remove or disconnect the following:
   Wiper and blade assembly Top cowl seal and panel Window washer hoses, from the ventilator louvers Left and right ventilator louvers Heater air duct Timing belt
5. Mark the left and right camshaft pulleys with a touch of paint.
6. Remove or disconnect the following:
   NOTE Be sure not to mix up the pulleys.
   Right and left camshaft pulleys bolts Pulleys from the engine
   No. 2 idler pulley by removing the bolt 3 clamps and engine wire from the rear timing belt cover 6 No. 3 timing belt cover-to-engine bolts Water pump nuts/bolts Water pump and gasket from the engine
   
   
   Fig. Exploded view of the components to gain access to the water pump-3.0L engine
   
   
   
   Fig. Exploded view of the water pump and related components-3.0L engine
   

1. Check that the water pump turns smoothly. Also check the air hole for coolant leakage.
2. Apply liquid sealer to the gasket, water pump and engine block.
3. Install or connect the following:
   NOTE After tightening the bolt, be sure the idler pulley moves smoothly.
   NOTE Be sure to align the knock pin hole on the camshaft pulley with the knock pin on the camshaft.
   NOTE Be sure to align the knock pin hole on the camshaft pulley with the knock pin on the camshaft.
   Water pump, using a new gasket. Tighten the nuts/bolts to 53 inch lbs. (6 Nm). Rear timing belt cover. Tighten the 6 bolts to 74 inch lbs. (9 Nm). Engine wire with the 3 clamps to the rear timing belt cover No. 2 idler pulley. Tighten the bolt to 32 ft. lbs. (43 Nm).
   Right-hand camshaft pulley, with the flange side outward.
   Tighten the camshaft bolt to 65 ft. lbs. (88 Nm), using the removal tools Left-hand camshaft pulley, with the flange side inward.
   Tighten the camshaft bolt to 94 ft. lbs. (125 Nm), using the removal tools Timing belt
   
4. Fill the engine coolant.
5. Install or connect the following:
   Heater air duct Left and right ventilator louvers Window washer hoses to the ventilator louvers Top cowl seal and panel Wiper and blade assembly Negative battery cable
6. Start the engine.
7. Top off the engine coolant and check for leaks.

Where exactly is located the fuse;
inside the radio?
behind the radio in specific place?

please, clarify

we have the same problem

Toyota Sienna 3.3 liter DOHC V-6 (3MZ-FE)




Hope helps (remember rated this).

I've written a step-by-step horn troubleshooting tutorial on my blog:

Could have possibly broken the shifter cable, or one of the ends might have come off, either of the shifter or the transmission.