Strange Sound -- Problem Solved! [video]

Win · Mar 3, 2008

Re: Strange Sound -- *Please HELP* [video]

Sounds like mine..... my To bearing is going out ... i would say its the TO bearing

94Pro-5.0 · Mar 3, 2008

Re: Strange Sound -- *Please HELP* [video]

how could it be the TOB i've already replaced it twice, the one thats in now has 0 miles on it :dunno:

Schiffy · Mar 4, 2008

Re: Strange Sound -- *Please HELP* [video]

Maybe you have bad JuJu, and you are the only unlucky SOB that gets 2 bad TO bearings in a row :banana:

94Pro-5.0 · Mar 4, 2008

Re: Strange Sound -- *Please HELP* [video]

lol that would suck ass. i'll know when i pull the tranny back out on wednesday i guess

2slo95fiveoh · Mar 4, 2008

Re: Strange Sound -- *Please HELP* [video]

BadBlack95GT said:
Maybe you have bad JuJu, and you are the only unlucky SOB that gets 2 bad TO bearings in a row :banana:

up at work, we installed 3 starters from 2 diff. parts stores on the same car within a week because we had bad
parts.. it could happen. the TO bearing is what i was told when i looked into my noise.. and so
far every other suggestion has been declined.
BTW: this should be made a sticky for the on-going trouble-shooting... haha j/k

fast5oh · Mar 5, 2008

Re: Strange Sound -- *Please HELP* [video]

i have replaced my TOB twice. the first time it went out in about 6 weeks. then i just did it agian not to long ago. and it went out in less then a week.

94Pro-5.0 · Mar 5, 2008

Re: Strange Sound -- *Please HELP* [video]

well that sucks. why are they such PITA's?

Schiffy · Mar 5, 2008

Re: Strange Sound -- *Please HELP* [video]

it's becuase our Mustangs hate us

94Pro-5.0 · Mar 5, 2008

Re: Strange Sound -- *Please HELP* [video]

it almost seems that way. i cant drive it for even a week without having to do something somewhat major to it, but oh well, i love the car even if it doesnt love me

94Pro-5.0 · Mar 6, 2008

Re: Strange Sound -- *Please HELP* [video]

Problem Solved

It was the REAR MAIN SEAL! It was a brand new Felpro from Autozone, and was installed perfectly fine.

I bought a new one from O'Rileys made by National that cost twice as much as the Felpro ($11 to $22).

I ran the car for a long time with the trannt on, then off, and the noise still happened, so out came the main seal. after we replaced it, we ran the motor again until operating temp with the tranny off, and no noise. I was so releived.

so, moral of this story, DO NOT buy Felpro main seals from Autozone!

Mr. OAM · Mar 7, 2008

Re: Strange Sound -- *Please HELP* [video]

Paul said:
Good point Steve. A seized air pump or A/C compressor could conceivably make a noise like that - but wouldn't it change pitch according to RPM?

First, I read the problem is solved. Whew!! That was a bugger.

Paul, I wasn't thinking seized as much as I was thinking just wiped out (sloppy). Perhaps a floating race that is spinning in it's seating area. As for the pitch changing, if you listen closely you can hear a change in the speed of the pulsation of the sound. I grew up around audio equipment and have a musical ear so I pick up on some real subtlties. The pitch of the sound doesn't change but the speed of the pulsation does. Since the problem was found to be related to the rear main seal the vibration of the crankshaft would account for this.

Also I said it sounded like something small. This is a result of how narrow the rear main is, not a whole lot of surface area.

As for the sound continuing for a second or two after the engine is shut off, the engine does not instantly come to a stop when it is shut off. It coasts to a stop because there is nothing to stop it's inertia except for cylinder compression, and air can be compressed.

Congrats on getting it fixed. These kinds of things drive me nuts!!!

Steve