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Thread: Loud fan noise when starting engine

  1. #1
    Fresh Catch HaSaNi's Avatar
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    Loud fan noise when starting engine

    As soon as i ignite and start my jlu sahara 2018, the radiator fans are generating a loud noise.

    Anyone facing the same problem?

    P.s. Im running on 19k and already did my 1st service on 10k.

    Appreciate your advise and solution to the cause.

    Warm regards,
    H.Baker20190520_173620.jpeg

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  2. #2
    Hooked Saddletramp's Avatar
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    Check with your dealer, there is a TSB out regarding this and an update that adjusts the fan speed.

  3. #3
    Been Around the Block Rgk401's Avatar
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    Quote Originally Posted by HaSaNi View Post
    As soon as i ignite and start my jlu sahara 2018, the radiator fans are generating a loud noise.

    Anyone facing the same problem?

    P.s. Im running on 19k and already did my 1st service on 10k.

    Appreciate your advise and solution to the cause.

    Warm regards,
    H.Baker20190520_173620.jpeg

    Sent from my SM-G965F using JL Wrangler Jeep Forum mobile app
    Are you starting the Jeep with the ac on full blast?


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  4. #4
    Fresh Catch HaSaNi's Avatar
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    Quote Originally Posted by Rgk401 View Post
    Are you starting the Jeep with the ac on full blast?


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    AC compressor off, plus the ac comp doesnt start when starting the engine using the key auto start.

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  5. #5
    Fresh Catch HaSaNi's Avatar
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    Quote Originally Posted by Saddletramp View Post
    Check with your dealer, there is a TSB out regarding this and an update that adjusts the fan speed.
    Can you pls elaborate the definition of TSB? Do you mean there is an official recall campaign?

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  6. #6
    Hooked Saddletramp's Avatar
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    Quote Originally Posted by HaSaNi View Post
    Can you pls elaborate the definition of TSB? Do you mean there is an official recall campaign?

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    "Technical Service Bulletin", kinda like an update. "TSB #18-041-18 Rev B" is what it was here in the states, not sure if it's the same oversea's or not?

    I re-read your original post so this may not apply to your's, my JL goes to full fan speed at times when it's really not that hot when I'm stopped, drive through, etc. and there is an update at the dealer that adjusts the sensitivity/output speed of the fan. The update helped mine.

    Not sure if that's part of your issue or not. Sounds like time for a trip to the dealership.

  7. #7
    Meme King WJCO's Avatar
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    Quote Originally Posted by HaSaNi View Post
    Can you pls elaborate the definition of TSB? Do you mean there is an official recall campaign?

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    Basically, it helps techs find problems faster when there is a common issue. If you are outside of your warranty period, they're typically not covered under warranty. It's not a recall.

  8. #8
    Fresh Catch HaSaNi's Avatar
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    Quote Originally Posted by Saddletramp View Post
    "Technical Service Bulletin", kinda like an update. "TSB #18-041-18 Rev B" is what it was here in the states, not sure if it's the same oversea's or not?

    I re-read your original post so this may not apply to your's, my JL goes to full fan speed at times when it's really not that hot when I'm stopped, drive through, etc. and there is an update at the dealer that adjusts the sensitivity/output speed of the fan. The update helped mine.

    Not sure if that's part of your issue or not. Sounds like time for a trip to the dealership.
    Thanks alot for your feedback pal. Ill be visiting my dealer soon and sure will give in your suggestion for their consideration.

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  9. #9
    Fresh Catch HaSaNi's Avatar
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    Quote Originally Posted by WJCO View Post
    Basically, it helps techs find problems faster when there is a common issue. If you are outside of your warranty period, they're typically not covered under warranty. It's not a recall.
    Im still on a 5 year Warranty period and it is covered (thank God ).

    Cheers Buddy

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