Why does my Van overheat when running idle?

kruzntaco
170

Asked by May 04, 2012 at 07:55 PM about the 2005 Toyota Sienna XLE

Question type: Maintenance & Repair

When I run the A/C then park my van, it slowly starts to overheat. I see the temperature gauge go from the middle to hot. The air coming out of the vent also goes from cold to warm. When I put the van back in motion, it cools down and goes back to normal. Any ideas as to what is going on?

7 Answers

aztec626bf
11,535

Your fan is most likely not working. Check to see if the fan comes on when the engine gets up to temp. If not things to check are fan relay fan fuse and wiring and the fan itself.

13 out of 13 people think this is helpful.
kruzntaco
170

Why would the vents pump out cold air when the van is driving if the fan was not working? Is there a corolation there?

2 out of 2 people think this is helpful.
Anthony DeRose
1,715

There are electrically operated radiator cooling fans to cool the radiator. If they don't come on, your van will overheat when it is not moving forward, to cause cool air to be forced through the radiator.

1 out of 1 people think this is helpful.
aztec626bf
11,535

We are talking about two different fans. The fan that cools the engine (cooling fan) and the fan that cools or warms the interior (blower motor). The cooling fan is the one I was referring to this one is thermostatically controlled. When the engine gets up to temp the cooling fan kicks in. The fan you are referring to is the one that controls interior temp. This one runs depending on user input.

3 out of 3 people think this is helpful.
Kurt Williams
100

I have the same problem but I do notice that both engine fans are on when its hot.

10 out of 10 people think this is helpful.
Jafer Pm
10

Hey I have the same problem but I look and find out one was not working but I try to make it spin and it work again I am going to see if it doesn't stop again let's see how it goes.

1 out of 1 people think this is helpful.
Arnaqq
0

My 2004 Toyota Sienna cue coolant gage rises when I'm at a stop light then when I go it goes back to normal.. Why is that and will it be a easy fix?

Your Answer

Add photo

Related Questions

Sienna

Looking for a Used Sienna in your area?

CarGurus has 20,656 nationwide Sienna listings starting at $1,450.

ZIP:

Search Toyota Sienna Questions

Toyota Sienna Experts

#1 Mik00000
Mik00000
Reputation 1,390
#2 Tom Demyan
Tom Demyan
Reputation 870
#3 dandyoun
dandyoun
Reputation 710
View All

Related Models For Sale

Used Honda Odyssey"
389 Great Deals out of 23,875 listings starting at $1,995
Used Toyota Highlander"
538 Great Deals out of 23,515 listings starting at $2,987
Used Chrysler Town & Country"
456 Great Deals out of 21,171 listings starting at $1,299
Used Toyota Camry"
1,530 Great Deals out of 87,016 listings starting at $999
Used Honda Pilot"
456 Great Deals out of 16,004 listings starting at $2,300
Used Dodge Grand Caravan"
267 Great Deals out of 26,046 listings starting at $1,500
Used Kia Sedona"
118 Great Deals out of 10,087 listings starting at $2,499
Used Nissan Quest"
63 Great Deals out of 3,400 listings starting at $1,695
Used Toyota RAV4"
871 Great Deals out of 44,676 listings starting at $1,350
Used Toyota 4Runner"
284 Great Deals out of 15,693 listings starting at $1,592
Used Toyota Corolla"
1,124 Great Deals out of 65,660 listings starting at $1,295
Used Toyota Sequoia"
152 Great Deals out of 5,221 listings starting at $2,900
Used Toyota Tacoma"
524 Great Deals out of 25,004 listings starting at $2,498
Used Honda CR-V"
1,183 Great Deals out of 80,103 listings starting at $1,200
Used Honda Accord"
1,121 Great Deals out of 72,473 listings starting at $1,400

Used Cars For Sale

2017 Toyota Sienna For Sale
2,750 listings starting at $28,688
2016 Toyota Sienna For Sale
4 Great Deals out of 7,098 listings starting at $22,999
2015 Toyota Sienna For Sale
35 Great Deals out of 2,084 listings starting at $18,871
2014 Toyota Sienna For Sale
31 Great Deals out of 1,236 listings starting at $12,995
2013 Toyota Sienna For Sale
53 Great Deals out of 1,675 listings starting at $10,988