Heater on Sienna

I have a 2002 Sienna. The temperature gauge operates normally. The problem is that eventhough the gauge shows normal operating temperature the air from the vents is only luke warm. It will take at least 1/2 hour of driving before the air starts to become comfortable. I have taken it to the dealer twice and they say it is normal. I have a Honda van also and warm air comes from the vents in less than 5 minutes. Any suggestions as to what might be the problem?

Joe

Our 1999 Sienna blows warm air quickly. I suspect you have a heater
core/valve problem.

Eric Hesse wrote:
[color=blue]
> I have a 2002 Sienna. The temperature gauge operates normally. The
> problem is that eventhough the gauge shows normal operating temperature
> the air from the vents is only luke warm. It will take at least 1/2 hour
> of driving before the air starts to become comfortable. I have taken it
> to the dealer twice and they say it is normal. I have a Honda van also
> and warm air comes from the vents in less than 5 minutes. Any
> suggestions as to what might be the problem?
>
>
>
> Joe
>[/color]