Question about 2004 Chrysler Pacifica

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2004 Chrysler Pacifica - Constant engine winding / whirring sound

We purchased our 2004 Chrysler Pacifica in 2005 as our family car, when our family grew.

The engine began to make a winding / whirring sound soon after the warranty ran out and has increased over time. Whenever I see another Pacifica when I'm out I listen for the sound on these other cars and have heard it on about 1 in 3 of them.

We live in a dry, desert climate with mild winters so I don't know if this has something to do with the issue.

Any help or pointers would be appreciated as the sound's driving me nuts.

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  • 56Kaveman Feb 01, 2009

    The issue sounds like it's coming from maybe the transmission, but we're not sure.

    The engine I think is a V6 and it's got about 62k miles on it.

    I know I heard (before I saw) another Chrysler Pacifica with the same sound on Friday evening, so this can't be an unusual problem with these cars.

  • Mike Butler
    Mike Butler May 11, 2010

    What particular engine do you have & mileage please?

  • 56Kaveman Sep 22, 2013

    This turned out to be, once again, a motor mount issue.

    We've had this happen again recently and have resigned ourselves to replacing a motor mount at least every 5-10k miles.

    Make sure that CHRYSLER motor mounts are used, as we had a non Chrysler mount replacement at one point which went out really quickly.

    Other than this annoying issue the car has been great.

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  • Chrysler Master
  • 6,674 Answers

If it sounds more like it's coming from rear of engine, that could be a possibility, and should be followed up,but if it's coming from front of vehicle area, I'd concentrate on your accessory drive belt . If it hasn't been changed in quite a while especially. That belt is routed around about 8 different pulleys,in,out,over,under, and it would lead me to believe it would be a good candidate for wear & noise that would increase as it wears more. I wouldn't try belt dressing as I'm not a lover of that stuff, only for emergencies. It may be as simple as spraying water on it to see if the noise changes or disappears, just keep your eyes back if engines running. They make what they call an audioscope, basically a set of headphones wired to an amplified probe, so it's easier to isolate the noise, perhaps a local garage has one, and can pinpoint it for you. Years back mechanics would use a long screwdriver or pipe up to their ear and poke around, but that's very dangerous, so I wouldn't recommend that. Your engine does have a timing belt too, and engines in the past have been known to produce that sound you describe from wear on it too. I'd go after that one as a last resort unless manual recommends it at certain interval.

Posted on Feb 02, 2009

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