It varies depending on the severity. if the damage isn't too bad, it could be piston rings, valve seals, pcv valve, and valve covers. in the worst case it could be a whole engine block, cylinder heads, cams, oil pump, oil pump pickup, valve covers, and pcv valve. generally ive been replacing the block, valve seals, valve covers, pcv valve, and oil pump.
The AC belts are probably stretched and loose. I had the same problem and replaced belts and cured squeak.
NO there is a 3yr 36,000 mile warranty on it.
It should be replaced every 90,000 miles.
There could be several reasons why a Toyota Sienna will not start. the most common problem would be a dead battery.
no
Just had the rear bumper replaced. Part cost about $210
Our 2006 Toyota Sienna air bag light was blinking, so we took it to the dealer and discovered that when this light is "ON", the air bag system is deactivated and the air bags will not deploy during a collision. We also discovered that other Sienna vans had the same problem as ours, and that Toyota's repair proceedure requires install of a new air bag. Our van has been at the dealership now for over a month waiting on the new air bag, as Toyota has not been able to find us one !!! I suspect that there may be a "recall" of these 2006 Sienna vans due to the liability of someone getting involved in a "wrongful-death" collison when the van's air bags do not deploy. If your van is still under warranty, I would suggest contacting Toyota for a new air bag. Doug Hainer, Sienna Owner Our 2006 Toyota Sienna air bag light has been replaced now three times. The dealer keeps telling us that it is a problem in the wiring. Every time they replace the connectors and air bag the system works flawlessly for about 3 months. The most recent fix occurred 2 weeks ago and this time they replaced the entire wiring harness!!! I also suspect that Toyota will be recalling the 2006 Sienna's because of this problem. Doug Tyree, So. Cal Sienna Owner
Usually a problem in the emission control system-have vehicle scanned to determine the problem
As for the maintenance schedule the timing belt must be replaced every 90 K miles.
My 2003 Sienna has one tank that is for the front and rear window. You might have a problem with your pump or something else. Does your front wiper work?
twice Toyota replaced the idling valve assembly in my 2001 sienna van, under the 36,000 mi warranty, since then I've had it replaced another 2 times. the mechanics say it's a defect in camryand sienna vans. so my last mechanic advised me to use better brand gas like chevron, which i guess helps coz i used to put any type from arco, vons, Costco, generic types. when the idling assy is replaced, it starts and idles fine, assy alone costs about $220-260+
It is real simple, I had never done it until I replaced it on my friends 1998 Sienna LE. Need to remove the sliding door panel and you'll be able to see exactly what it takes to to.