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    luvaruba's Avatar
    luvaruba Posts: 5, Reputation: 1
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    #1

    Feb 17, 2009, 11:38 AM
    Vapor from AC vents inside SUV
    I own a 2002 Chevy trailblazer LT which is housed at my home in Aruba in the Caribbean. The weather here is generally in the high 80s during the day. Today is the first day it has rained in 3 weeks. I just picked up my SUV which had a new water pump installed. While driving home, I put on the AC and noticed vapor (although at first I thought it was smoke but it did not smell like smoke) coming out of the AC vents inside the SUV. I got home and opened the hood and everything looked normal. Should I be worried?
    this8384's Avatar
    this8384 Posts: 4,564, Reputation: 485
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    #2

    Feb 17, 2009, 02:33 PM

    You might have a bad heater core. What did you originally take the vehicle in for?
    luvaruba's Avatar
    luvaruba Posts: 5, Reputation: 1
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    #3

    Feb 17, 2009, 02:44 PM
    Quote Originally Posted by this8384 View Post
    You might have a bad heater core. What did you originally take the vehicle in for?

    I took my SUV in for a new water pump. The vehicle had been run by the garage for sometime to check for leaks, make sure thermostat was working, etc. When I turned off the AC, the vapor stopped coming out of the AC vents.
    this8384's Avatar
    this8384 Posts: 4,564, Reputation: 485
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    #4

    Feb 17, 2009, 02:58 PM

    Was the water pump leaking/noisy? What reason did it need to be replaced? Were you having an overheating issue?
    luvaruba's Avatar
    luvaruba Posts: 5, Reputation: 1
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    #5

    Feb 17, 2009, 03:31 PM
    Quote Originally Posted by this8384 View Post
    Was the water pump leaking/noisy? What reason did it need to be replaced? Were you having an overheating issue?

    The water pump was leaking and rusting out. It also caused a clicking sound. I have no idea but I would imagine since the water pump was leaking, the car would overheat. I just ran the car for 6 minutes or so, turned on the AC and nothing happened.
    kitch428's Avatar
    kitch428 Posts: 1,440, Reputation: 152
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    #6

    Feb 17, 2009, 04:53 PM

    The vapor you saw was conditioned air mixed with humid air. The same as when you open your freezer at home.
    Using recirculate will diminish the vapor.
    qublanjordan's Avatar
    qublanjordan Posts: 3, Reputation: 1
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    #7

    Apr 12, 2010, 11:37 AM
    Quote Originally Posted by kitch428 View Post
    The vapor you saw was conditioned air mixed with humid air. The exact same as when you open your freezer at home.
    Using recirculate will diminish the vapor.
    Yes, I agree with your comments,
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