Bubble under motor mount (9th gen. Gorolla)

Hello all,

I'm lately having some engine vibration at idle.
That started after the dealer shop replaced the belt tensioner, which involved lifting the engine a bit. I looked at the passenger side motor mount and underneath it I see a rubber "bubble" that seems to get larger as temperature rises. Is this rubber bulge normal for these mounts or it's an indication of internal failure? I know this motor mount is fluid filled and I don't want to wait till it starts spilling fluid.

Thanks.

Dan wrote:
> Hello all,
>
> I'm lately having some engine vibration at idle. That started after
> the dealer shop replaced the belt tensioner, which involved lifting
> the engine a bit. I looked at the passenger side motor mount and
> underneath it I see a rubber "bubble" that seems to get larger as
> temperature rises. Is this rubber bulge normal for these mounts or
> it's an indication of internal failure? I know this motor mount is
> fluid filled and I don't want to wait till it starts spilling fluid.
>
> Thanks.

The exterior of the mount shouldn't change. Sounds like the internal
chamber failed.

--
Steve W.

On 05/27/2017 10:50 PM, Steve W. wrote:
> Dan wrote:
>> Hello all,
>>
>> I'm lately having some engine vibration at idle. That started after
>> the dealer shop replaced the belt tensioner, which involved lifting
>> the engine a bit. I looked at the passenger side motor mount and
>> underneath it I see a rubber "bubble" that seems to get larger as
>> temperature rises. Is this rubber bulge normal for these mounts or
>> it's an indication of internal failure? I know this motor mount is
>> fluid filled and I don't want to wait till it starts spilling fluid.
>>
>> Thanks.
>
> The exterior of the mount shouldn't change. Sounds like the internal
> chamber failed.

Life was simpler when they were just chunks of rubber. I couldn't take
the metal part off after the rubber was completely gone, so I just
slapped the new on on top. Whatever works.

--
Cheers, Bev
Teamwork: A bunch of people running around doing what I tell them.

The Real Bev wrote:
> On 05/27/2017 10:50 PM, Steve W. wrote:
>> Dan wrote:
>>> Hello all,
>>>
>>> I'm lately having some engine vibration at idle. That started after
>>> the dealer shop replaced the belt tensioner, which involved lifting
>>> the engine a bit. I looked at the passenger side motor mount and
>>> underneath it I see a rubber "bubble" that seems to get larger as
>>> temperature rises. Is this rubber bulge normal for these mounts or
>>> it's an indication of internal failure? I know this motor mount is
>>> fluid filled and I don't want to wait till it starts spilling fluid.
>>>
>>> Thanks.
>> The exterior of the mount shouldn't change. Sounds like the internal
>> chamber failed.
>
> Life was simpler when they were just chunks of rubber. I couldn't take
> the metal part off after the rubber was completely gone, so I just
> slapped the new on on top. Whatever works.
>

The active mounts really work to dampen the rough smaller engines. BUT
they can be a PIA at times.

--
Steve W.