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Thread: Rear main seal gone. Again! Just six months after replacement.

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    Angry Rear main seal gone. Again! Just six months after replacement.

    Well, just about 6 months to the day after spending over $1,000 to replace the failed rear main seal on my 2012 Pop, the leaking started again and, sure enough, the rear main seal has failed again. I took it back to the dealer where I bought it new and who did the replacement in January. Even though they’re no longer a Fiat dealer they’re trying to work with the regional Fiat rep to see if they can get this replacement paid for. I know the rear seal is an issue for 2012s but now I’m wondering if they’re just replacing a faulty part with a new faulty part. In the meantime, I’m holding off on sealing my driveway until I’m sure the fix works and there won’t be any more oil stains on my nice new blacktop.

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    Have you looked into the things that might contribute to seal failures? Some are overfilling the crankcase, fuel dilution of the oil (from lugging the engine, misifres, excess engine braking, having fouled injectors, broken ring lands), shutting off a hot recently heavily taxed engine without letting engine temperatures stabilize first (seal failure can be a consequence of excess and extreme heat soak conditions), overheating (which can stem from low oil level or contaminated oil/depleted additive package), extended drain intervals on depleted oil, dirty air filter, poorly functioning positive cranckcase ventilation system.

    An oil sample might be a good place to start. It can tell you if certain things like excess acids, contaminants, or which type of engine wear might have contributed to the seal failure.
    Last edited by streetsurfer; 06-12-2018 at 03:41 PM.

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    Chestnutbluff (06-12-2018)

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    Thanks, but none of those conditions would apply in this case. The car has been babied with just 36,000 miles in 6 years. Always dealer-maintained by the dealer that replaced the seal. I’m inclined to think the part was faulty. In any case, we’ll know more later this week.
    Last edited by Chestnutbluff; 06-12-2018 at 07:22 PM.

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    I really like my 500 but the dealer working on it is also a Mazda dealer and I’m being tempted by a CX-5. Somebody talk me down. Quickly!

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    Change dealers.... Quick!!!
    You will have make regrets otherwise.

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    Chestnutbluff (06-12-2018)

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    Premium Member Southernroadrunner's Avatar
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    I wouldn't think that would be right. Another failure for the same thing in such short time. Do any of the suggestions that streetsurfer mentioned in the above post to this apply. You said you baby the car which means it's been driven carefully and maintained properly.
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    Enthusiastically Slow Lifetime Member Ando's Avatar
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    Quote Originally Posted by streetsurfer View Post
    ...excess engine braking...
    I engine brake more than most truckers, I barely used the brake pedal in my TDI, can you please explain to me why this is hazardous behaviour? Thanks!

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    Yes, exactly, Southernroadrunner. I have always driven it carefully and maintained it scrupulously. It has an automatic transmission so no engine braking or lugging. I can only think that the seal used to replace the first flawed seal was similarly flawed. My hope is that the new replacement will hold up more than 6 months.

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    You know what makes this whole thing worse? My name is Tony so when I talk about the occasional issues I’ve had with this Fiat you can imagine what people say.

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    bryanintowson (06-15-2018)

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    Enthusiastically Slow Lifetime Member Ando's Avatar
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    Quote Originally Posted by Chestnutbluff View Post
    You know what makes this whole thing worse? My name is Tony so when I talk about the occasional issues I’ve had with this Fiat you can imagine what people say.
    Brutal indeed. Can't let it get to you though. At the end of the day they still have to putter home in their beige crossovers, cautiously braking at every corner.

    My favorite alternatives are "Fling It Around Turns" and "Ferrari In Affordable Trim".

    FIATs will likely always be an easy target for teasing in the US, we just have to grin and bear it. Or depending on who's teasing I'll simply state "You wouldn't get it", wink, and walk away from the [useless] conversation.

    Best of luck with the resolution, keep us posted.

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    bryanintowson (06-15-2018)

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