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Thread: D2 td5 aircon fan Poor performance

  1. #1
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    D2 td5 aircon fan Poor performance

    Hi all. I have two discos td5s a 1999 and a 2001 model. Now the only issue i have is the aircon fans in both , blow what I would call a poor amount of air, when even set on hi. No faults shown doing self aircon test. Any ideas as to an uprated fan motor . I have removed motors and cleaned them out. No significant difference. Suggestions ?

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    The odds on both cars fans being slow/bad are fairly remote,,,
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  3. #3
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    Quote Originally Posted by Pedro_The_Swift View Post
    The odds on both cars fans being slow/bad are fairly remote,,,
    I agree. Saying that I have not been in another disco td5 to compare. They dont seem to blow much air. Im not sure if its just the make up or the aircon ecu. If i set temp to low and it switches from auto it seem marginally better.

  4. #4
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    16 and auto produces lots of air in ours,,
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!


    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]

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    Mine makes a fair bit of air but before didn’t because of leafs in the blower
    Another issue I have now is hot air sometimes at the feet!!!
    I think some of the foam filter from the front is blocking the flaps as I’ve had bits come out the drivers vents

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    Quote Originally Posted by Mclaren00 View Post
    Mine makes a fair bit of air but before didn’t because of leafs in the blower
    Another issue I have now is hot air sometimes at the feet!!!
    I think some of the foam filter from the front is blocking the flaps as I’ve had bits come out the drivers vents
    Do u mean the pollen filter? That’s supposed to be replaced regularly
    "Land Rover - making mechanics out of everyday motorists for nearly 70 years"

  7. #7
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    Quote Originally Posted by John_D2 View Post
    Do u mean the pollen filter? That’s supposed to be replaced regularly
    Yer the one that’s under the bonnet?
    It’s never been on since I’ve had it (just over a year)

  8. #8
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    Quote Originally Posted by Bazzle218 View Post
    Hi all. I have two discos td5s a 1999 and a 2001 model. Now the only issue i have is the aircon fans in both , blow what I would call a poor amount of air, when even set on hi. No faults shown doing self aircon test. Any ideas as to an uprated fan motor . I have removed motors and cleaned them out. No significant difference. Suggestions ?

    My two cars are chalk and cheese. The 2004 D2a has a brilliant fan and cold air system, but the 1995 RRC softdash apparently is the same as an early D2 and is woeful by comparison as far as actual air delivery is concerned - but it at least does blow cooled air!
    I think I vaguely remember a comment along the lines of a different/enhanced vent/air blending system being introduced in later models?
    D4 MY16 TDV6 - Cambo towing magic, Traxide Batteries, X Lifter, GAP ID Tool, Snorkel, Mitch Hitch, Clearview Mirrors, F&R Dashcams, CB
    RRC MY95 LSE Vogue Softdash "Bessie" with MY99 TD5 and 4HP24 transplants
    SADLY SOLD MY04 D2a TD5 auto and MY10 D4 2.7 both with lots of goodies

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    If I leave it on auto , my aircon just about blows me out of the car on a hot day, accompanied by copious amounts of noise.
    Seeing 2 fans act the same , I wonder if you have a fault in the electronics of the dash console that will not allow full voltage to the fan.

    Why not try the fan on 12 volts directly from the battery and see what it does?
    Regards Philip A

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