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fan clutch???

This is a discussion on fan clutch??? within the General Help forums, part of the LSx Technical Help Section category; I have a 2000 model WS6 Firebird and it makes a bad clanking sound with the A/C on in D ...

  1. #1
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    fan clutch???

    I have a 2000 model WS6 Firebird and it makes a bad clanking sound with the A/C on in D or P. Took it to the dealer yesterday, who looked at it and told me it might be a fan clutch?

    I thought our cars used electric fans for one thing, and for another I had already become convinced it must be loose TC bolts or cracked flexplate noise... sounds like a general clanky vibration at idle or low RPM/high load when I drive around town. It has a vibration at highway speeds that I understand to be caused by the polyurethane tranny mount but other than that, it's good on the highway and bad in town.

    Thoughts?

    Do our cars have fan clutches?

    How easy are they to fix....

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
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    you have a electrical fan.

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    you say it only makes noise when the a/c is on sounds like a big clue that your compressor clutch is on the way out to me.

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    Nah it does it with the AC on but not only with the AC on... it does it at pretty much all very low rpms but not at all in reverse. Loose torque converter bolts or broken flexplate are out because it wouldn't be worse under load, bearings and pushrods no bc it doesn't do it all the time... I'm really stumped. Ifit was the AC it would only be when the AC is on.... hell it doesn't do it in reverse so i have no idea what that means.

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    Moderator Cutlass's Avatar
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    Maybe they were talking about a bad AC compressor clutch?? But why that noise would go away in reverse...IDK

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    Sounds like it could be in the tranny to me.... That is the only thing reverse could have a direct effect on. As mentioned, TC bolts/ Flexplate could be tested by holding the brake and stalling the converter up a bit, it will load the TC and take up the slack.... Hence the sound should then stop.

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    Quote Originally Posted by FORD RECOVERY EXPERT View Post
    Sounds like it could be in the tranny to me.... That is the only thing reverse could have a direct effect on. As mentioned, TC bolts/ Flexplate could be tested by holding the brake and stalling the converter up a bit, it will load the TC and take up the slack.... Hence the sound should then stop.
    well played sir. will try this out today!!

  8. #8
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    It goes away at about 1500 RPMs. Probably means I was right to call it broken flexplate or loose TC bolts huh. Tomorrow or the day after it gets a WB o2 and a visual inspection of flexplate and TC.

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