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It's probably a crack in the rubber intake hose between the air metering unit and the throttle body. I've had it happen 3 or 4 times on my vans. New hoses are expensive so I usually just sealed them up with gasket maker. If that doesn't answer your ?, email me. Eric

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โˆ™ 2005-05-10 18:58:18
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Q: Why would a 1988 Toyota Sienna have no power and very rough idle?
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Related Questions

Toyota Sienna Won't Start?

There could be several reasons why a Toyota Sienna will not start. the most common problem would be a dead battery.

How do you convert the power door on a Toyota Sienna 2000 xle to a manual door?

Forget it. You would be better off replacing your vehicle with another vehicle.

What do I do about a 2004 Toyota Sienna with radio troubles Actually this is the second 2004 Sienna with the same radio problem Would Toyota take care of this even though the car is out of warranty?

NO there is a 3yr 36,000 mile warranty on it.

Does a Fram PH3614 oil filter fit a 2004 Toyota Sienna?

Yes, that filter fits a 2004 Toyota Sienna. But, I would not recommend a Fram filter. Purolator, Bosch, & Wix, all make superior filters to the Fram.

Which van is best Toyota Sienna or dodge caravan?

The sienna is a more stylish car that from most people would say the sienna overall is a better van and i would go with that, but the grand caravan is a less-expensive van that is still ( but not as good as the sienna as i said ) a very good van, i would say go with the sienna if you're buying a van but if it is not in the budget go with a caravan as a second choice.

Where is the dimmer switch on a 2005 Toyota Sienna?

The trip odometer switch on the odometer itself is the dimmer on Toyota Sienna. If you turn this switch all the way to the left your panel would become dark. Simply turn the switch to the right and all panel lights would come on. I had a similar problem and the manual bailed me out.

What part do you need to order to repair a broken lift gate lock on a 2007 Toyota Sienna?

I would check with Toyota and make sure its not covered by recall. Our 2004 had both of them fail and Toyota replaced them for free.

Where can someone purchase aftermarket floor mats for a Toyota Sienna?

The best place to find aftermarket floor mats for a Toyota Sienna would be at an auto parts store that sells car accessories, such as Canadian Tire. One could also look at auto supply store sites, and at Amazon.

What coolant is best for a 2001 Toyota Sienna?

Toyota Long Life coolant. Pricey. Any brand name ethylene-glycol based coolant, mixed 50/50 would be OK.

Is a 2009 Toyota Sienna non interference engine?

The 2gr-fe uses a chain ,not a belt ,and yes if it were to jump the valves would bend

What would cause your clock and cigarrete lighter and chargers to stop working and your engine light to come on and stay on in a 2003 Toyota sienna?

Check fuses

How often does synthetic oil in a Toyota Sienna need to be changed 5000 or 10000 miles?

Neither. I would recommend you change it every 8,000 miles.

What power would F1 cars have if they had turbos?

the rough power of a f1 engine with twin vain turbos would be 5500hp i will explain latter.

How do you replace Toyota Sienna dashboard dimmer switch?

Not sure if this helps or not but on a 2005 Toyota Sienna LE, the dash-light dimmer switch is actually the trip odometer reset switch. Turning the trip odometer reset switch left or right controls the dash-light levels. Had it not been for the factory manual, and Google, I would have never known this.

How do you get a replacement transponder key for a 2000 Toyota Sienna?

A locksmith can clone a key for you. If you lose all your keys, the dealership would be needed for special programming (Reflash ECU).

How do you remove the dash on a 2001 Toyota Sienna?

Get a Toyota shop manual before you attack the dash. There are a number of screws and clips that are not obvious, and there is a good chance you will get frustrated and break something if you just go at it. On the Sienna, I had to remove a good portion of the dash just to change light bulbs on the instrument cluster. I have a shop manual, and the job went smoothly. But I would have not figured it out without the instructions.

Toyota Sienna fuel filter?

To my knowledge after 2001/2, Toyota no longer uses an external fuel filter on their Sienna models, all the fuel filters are incorporated with the fuel pump inside the tank. Should your model still have an external fuel filter it would be underneath the air filter assembly. You could verify by following the the fuel line/hose. copied from FixYa

What would cause a 2000 Toyota Sienna to crank but not start in the summer mornings but will start after the outside temperature heats up in the afternoon?

moisture on the ignition coils.spray them with silicon spray.

What gasoline brand is the best for a Toyota Sienna?

Bp i believe is great used hess, getty, sunoco and engine would knock like crazy. Also my check engine light would turn on with the others...

What else have to be changed when you are changing timing belt for Toyota Sienna 2002?

I would replace the water pump, 2 idlers, tensioner and 3 seals (2 on cam and 1 on crank shaft).

What would cause a 2002 Toyota Sienna keyless remote not to function even with new batteries?

I have same problem and can not figure it out,I have 2 remote but non of them works, must be something witrh the car.

How do you reset your 2006 Toyota Sienna air bag light?

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

What would make a 1994 Toyota 22 re engine to run rough when you take the oil cap off?

high milage blow by or pcv Issue

Any idea as to why the Vehicle Skid Control on a 2004 Toyota Sienna would engage in dry conditions and perfect tire settings?

it may have metal fiber build up on the wheel speed sensors

Why does my 2005 Toyota sienna xle left sliding door only open a few inches then close It will not fully open?

Just a thought. I have a Toyota Sienna also. The gas compartment is on the left side. If the gas compartment is even popped then there is a safety mechanism that will not let the door open. Your compartment might be closed, but you could be having a mechanical problem with the compartment that would cause the safety mechanism to come on. Simple, but could just be it.