HVAC blower?
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  • 2 Post By 13ir14314
Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, HVAC blower? in Past Cadillac Vehicle Discussion; Was just playing with the fan speeds and noticed that there is no speed increase from speed 4 up to ...
  1. #1
    13ir14314's Avatar
    13ir14314 is offline Cadillac Owners Fanatic
    Automobile(s): 2002 DHS, 1967 Eldorado
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    HVAC blower?

    Was just playing with the fan speeds and noticed that there is no speed increase from speed 4 up to 5 and the is no decrease from 5 to 4 but all other speeds have a noticeable difference. I checked the plug at the blower and that is good.

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  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
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    Re: HVAC blower?

    there aren't just 4 or 5 blower speeds -
    the blower speed is controled by signal voltage -
    each 1/10 of a volt changes the blower speed slightly -
    you may or may not feel/hear a difference with each change -

  4. #3
    13ir14314's Avatar
    13ir14314 is offline Cadillac Owners Fanatic
    Automobile(s): 2002 DHS, 1967 Eldorado
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    Then as long as its working I won't worry about it.
    basscatt and basscatt like this.

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