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horrible grinding noise when i try to start up.

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Old Jul 19, 2009 | 01:48 AM
  #1  
platniumaura's Avatar
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Joined: May 2009
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From: collinsville, IL
Car: 1987 IROC Z28
Engine: 5.7 TPI
Transmission: 700r
Axle/Gears: stock drum posi, 2.71 i think
horrible grinding noise when i try to start up.

iv got a tpi 350 on a 700r auto, when i try to start my car it makes a horrible grinding noise and the car will not crank, i looked under the car and it seems the fly wheel is turning but wont start.

i suspect the starter is bad but im not much of a mechanic, and i want to be sure that this is the problem before i start trying to fix it. any help would be great. if you need more info please ask.
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Old Jul 19, 2009 | 06:10 AM
  #2  
F-body-fan's Avatar
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Joined: Apr 2007
Posts: 948
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From: Green Bay, WI
Re: horrible grinding noise when i try to start up.

Can you have someone look under the hood while you crank to see if it spinning over? It sure sounds like a flywheel / starter issue though. Did it happen all of the sudden, or was it slow coming & sounding odd for a while?
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Old Jul 19, 2009 | 10:35 AM
  #3  
pbtrilogy's Avatar
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Joined: Jul 2009
Posts: 156
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From: Greenville, NC
Car: 1985 Z
Engine: 89 305 TPI
Transmission: 700-R4
Axle/Gears: OSD 10 bolt/ 3.42
Re: horrible grinding noise when i try to start up.

i had this same problem a couple days ago.

have you checked to see if the starter mounting bolts are still tight?
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Old Jul 19, 2009 | 11:28 AM
  #4  
fireturd350's Avatar
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From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
Re: horrible grinding noise when i try to start up.

Yeah I would agree... I've found grinding before and the starter bolts had started to loosen even after just tightening less than a week before.
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Old Jul 19, 2009 | 02:37 PM
  #5  
kkingsrulee's Avatar
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Joined: Oct 2008
Posts: 800
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From: Temple City, CA
Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
Re: horrible grinding noise when i try to start up.

It sounds like you either have some broken teeth on the flywheel/ring gear, or the teeth are too worn to engage.
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Old Jul 19, 2009 | 11:17 PM
  #6  
jaysperfly's Avatar
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Joined: Jul 2009
Posts: 1
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From: Kapolei, Hawaii
Car: 1989 Camaro RS
Engine: V8
Transmission: Automatic 700R
Re: horrible grinding noise when i try to start up.

mine used to do this sometimes and one day it didnt start at all so after towing it and replacing the starter and ignition system it hasnt made the grinding sound yet. pretty embarassing after school to make that sound lol.
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