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  '74 to '78 -- The Mustang II
  Help - Grinding sound when accelerating

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Author Topic:   Help - Grinding sound when accelerating
Derrick
Journeyman

Posts: 2
From: Sudbury, Ontario, Canada
Registered: Sep 2004

posted 09-03-2004 06:29 PM     Click Here to See the Profile for Derrick   Click Here to Email Derrick     Edit/Delete Message   Reply w/Quote
Question Hey there, I have a 1978 Ford Mustang II, not sure if you're familiar with the Mustang II's but I'll give it a shot. Here's the problem, when I'm driving, the car is fine and drives beautifully, although after I've been driving for say...20 minutes and car gets warmed up, when I accelerate there's a strange Grinding sound. I'm not sure where it's coming from but it may sound like the transmission. The sound comes from the middle of the car. It only does this sound after the engine has be warmed up and only when I accelerate. I'll stop at a stop sign, press the gas and accelerate, then for about 2 seconds it'll go "GRNNNN" and then it'll be fine until the next time I accelerate. Please let me know what you think it is. Thanks!

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-Derrick

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SteveLaRiviere
Administrator

Posts: 44921
From: Saco, Maine
Registered: May 99

posted 09-03-2004 08:02 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Welcome to M&M.

It sounds like it could be something like a loose catalytic converter heat shield. Take a peek underneath and see if you can find anything loose.

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'70 Mustang Mach 1 351C 4V/FMX/3.25 Open
'70 Mustang Convertible 250 I6/3 speed/2.79 Open
'72 Mustang Sprint Hardtop 351C 4V/FMX/4.30 Trac Loc
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip

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Derrick
Journeyman

Posts: 2
From: Sudbury, Ontario, Canada
Registered: Sep 2004

posted 09-04-2004 12:44 AM     Click Here to See the Profile for Derrick   Click Here to Email Derrick     Edit/Delete Message   Reply w/Quote
A little late right now but i'll check it out tomorrow. It only does it when i start from a stopped position, it's like after i get out of first gear i'm all good. Mind you if i press the gas harder and accelerate a little faster, i don't get the noise, it just skips the noise and goes normally.

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san meehan
Journeyman

Posts: 18
From: Saint John NB
Registered: Oct 2004

posted 10-31-2004 02:55 PM     Click Here to See the Profile for san meehan   Click Here to Email san meehan     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Derrick:
A little late right now but i'll check it out tomorrow. It only does it when i start from a stopped position, it's like after i get out of first gear i'm all good. Mind you if i press the gas harder and accelerate a little faster, i don't get the noise, it just skips the noise and goes normally.


it could be a throw out bearing

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