i just changed my 2005 Sienna AC compressor 2 months ago. Now I have noticed a loud sound when ever I turn my AC on. It gets louder when I slow down or on idle .

Asked by Aug 27, 2015 at 12:15 PM about the 2005 Toyota Sienna LE

Question type: Maintenance & Repair

The sound is not shrieking but it's like a louder engine-like sound or motor-like, like a loud hum. No vibration noted. I hear when AC is on, especially when I am slowing down or at idle ( maybe because I hear it better then?). But noise is gone when AC off. One mechanic said, I might have a defective compressor. Any ideas?

1 Answer

17,270

Sounds like the compressor clutch is slipping. It can be adjusted by the right person that knows what they are doing but since it is not that old where you had it done should take care of it.

Your Answer

Add photo

Related Questions

  • 2005 Sienna only blows heat while driving, not idling - what's wrong? 2 answers

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

    2004 Toyota Sienna 4 Dr CE Passenger Van

    -

    Maintenance & Repair

  • When to change the intake manifold gasket on 2005 Toyota Sienna? 2 answers

    I just changed the spark plugs on the 2005 Toyota Sienna and what a job that was! I see that on the upper intake manifold it has a red rubber gasket. Is it necessary to change this gasket? the ga...

    2005 Toyota Sienna LE

    -

    Maintenance & Repair

  • Why does my Van overheat when running idle? 7 answers

    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...

    2005 Toyota Sienna XLE

    -

    Maintenance & Repair

  • 04 sienna oveheats 1 answer

    04 sienna oveheats at idle or low rpm, both fans work and the one speeds up with temp increase, A/c recirc light comes on then as it gets hotter a/c blows warm. if you rev it over 1500 it cools quick ...

    2004 Toyota Sienna 4 Dr XLE AWD Passenger Van

    -

    Maintenance & Repair

  • random stalling when coming to a stop or slowing down. 28 answers

    At random times - once a week when I am coming to a stop or slowing down in traffic (when it's below 1 rpm) the car will just stall. It starts up o.k., and then will be fine the rest of the day. I've ...

    1999 Toyota Camry XLE

    -

    Maintenance & Repair

Search Toyota Sienna Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Toyota Sienna Experts

#1 Mik00000
Mik00000
Reputation 1,480
#2 Tom Demyan
Tom Demyan
Reputation 1,010
#3 FordNut
FordNut
Reputation 900
View All

Related Models For Sale

Used Honda Odyssey
368 Great Deals out of 27,550 listings starting at $1,095
Used Toyota Highlander
640 Great Deals out of 22,079 listings starting at $2,000
Used Chrysler Town & Country
543 Great Deals out of 19,951 listings starting at $1,750
Used Toyota Camry
1,196 Great Deals out of 93,143 listings starting at $700
Used Honda Pilot
527 Great Deals out of 19,353 listings starting at $950
Used Kia Sedona
140 Great Deals out of 8,850 listings starting at $1,999
Used Dodge Grand Caravan
370 Great Deals out of 34,409 listings starting at $2,499
Used Nissan Quest
91 Great Deals out of 3,200 listings starting at $1,195
Used Toyota RAV4
821 Great Deals out of 53,146 listings starting at $2,199
Used Toyota 4Runner
341 Great Deals out of 20,329 listings starting at $1,250
Used Toyota Sequoia
154 Great Deals out of 6,152 listings starting at $2,477
Used Toyota Corolla
1,077 Great Deals out of 64,179 listings starting at $1,595
Used Toyota Tacoma
712 Great Deals out of 32,122 listings starting at $2,000
Used Honda CR-V
907 Great Deals out of 66,880 listings starting at $1,995
Used Nissan Pathfinder
504 Great Deals out of 24,525 listings starting at $1,795

Used Cars For Sale

2017 Toyota Sienna For Sale
14,289 listings starting at $27,251
2016 Toyota Sienna For Sale
20 Great Deals out of 1,287 listings starting at $18,990
2015 Toyota Sienna For Sale
28 Great Deals out of 1,532 listings starting at $16,494
2014 Toyota Sienna For Sale
47 Great Deals out of 1,598 listings starting at $13,991
2013 Toyota Sienna For Sale
42 Great Deals out of 1,120 listings starting at $10,995