Odd Sound After Starting

ezbngreen · Feb 17, 2017

Hey guys- I'm stumped on this one.

Have a EFI, 5.0L mustang engine that makes a strange sound for a couple seconds after starting. It's happened since Moab last year. Sounds similar to if you took an aluminum can, filled it with sand and started shaking really fast. Not a grinding sound or a hiss, but just a high pitched noise.

Replaced the starter, ignition and rebuilt the motor since Moab, but the sound still exists.

Any ideas?

spap · Feb 17, 2017

Probably about 20 years On my first bronco with a C4. I did have the gear on the flex plate become slightly loose and it would make that sound right after start up. Drove me nuts because it was hard to track down and you don't expect that gear to be loose. Kinda like a high pitched scraping if I rememeber right
But I don't know if you have an automatic or not .

blubuckaroo · Feb 17, 2017

It could be a sticky starter bendix.

ransil · Feb 17, 2017

does it have a hi torq mini started installed?
is it wired correctly?

ransil · Feb 17, 2017

ransil said:
does it have a hi torq mini started installed?
is it wired correctly?

attachment for starter

sanndmann3 · Feb 17, 2017

My starter would hang for about 5 seconds until I looked at the wiring and made some changes... no more hang!

ezbngreen · Feb 17, 2017

My Bronco has an AOD.

I thought it was the starter and replaced it. It's gotta be the flex plate, right? It's high pitch like you described. Where in SoCal do you live. I'm in Arcadia.

John

garberz · Feb 17, 2017

Good to go for TDS?

Mark

ezbngreen · Feb 17, 2017

Yes. It started.

Excited to put some hours on it. That was a lot of work.

Odd Sound After Starting

ezbngreen

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spap

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blubuckaroo

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ransil

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ransil

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sanndmann3

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ezbngreen

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garberz

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ezbngreen

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