2005 Sienna only blows heat while driving, not idling - what's wrong?

Asked by jm08488 Nov 14, 2014 at 04:16 PM about the 2004 Toyota Sienna 4 Dr CE Passenger Van

Question type: Maintenance & Repair

2005 Sienna only blows heat while driving, not idling - what's wrong?  Blower always
works, but it's only warm when driving.

3 Answers

340

I am having the same problem with my 2007 Sienna. As long as the car is moving I have heat. As soon as I stop for a light the temp drops. Can has been in the shop twice now in two weeks.

34 people found this helpful.
150

My 2000 Toyota Sienna just started doing this. When it is fully warmed up, I only get heat when driving. If I hold the accelerator down and hold it at 2000 rpm I get heat. when I let off the accelerator at idle, no heat. I suspect the water pump is failing. That is the only component that I can think of that would be dependent on RPMs.

15 people found this helpful.

Hello everyone. Does anyone have a schematic of the hvac actuator locations for 2007 toyota sienna? I just replaced the ds front lower actuator and now i am having trouble with different vents. Wondering what the 4 actuators do and i can't find any info.

Your Answer:

Sienna

Looking for a Used Sienna in your area?

CarGurus has 750 nationwide Sienna listings starting at $4,200.

Postal Code:

CarGurus Experts

  • #1
    TLX_4765
    Reputation
    2,050
  • #2
    Mik00000
    Reputation
    1,930
  • #3
    dandyoun
    Reputation
    1,710
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Honda Odyssey
48 Great Deals out of 972 listings starting at $2,495
Used Toyota Highlander
32 Great Deals out of 738 listings starting at $2,495
Used Toyota Sequoia
4 Great Deals out of 69 listings starting at $16,489
Used Honda Pilot
40 Great Deals out of 1,271 listings starting at $4,495
Used Chrysler Pacifica
49 Great Deals out of 1,199 listings starting at $13,999
Used Toyota RAV4
108 Great Deals out of 2,083 listings starting at $3,888
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212
Used Toyota 4Runner
10 Great Deals out of 304 listings starting at $9,700
Used Toyota Tacoma
55 Great Deals out of 1,071 listings starting at $8,708
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Chevrolet Suburban
10 Great Deals out of 550 listings starting at $7,500
Used Dodge Grand Caravan
101 Great Deals out of 1,943 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.