LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Loud pitch screaming noise when I start the car..

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Old 05-19-2003, 04:41 PM
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96z
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Loud pitch screaming noise when I start the car..

When I go to start the car there is a high pitched screaming noise. I was thinking maybe the belt was slipping but it only does it when I start the car and while holding the key forward. My next guess of course is starter...but is that a sign of a dying one, etc?

Any idea what could be wrong?
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Old 05-19-2003, 04:45 PM
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Does it stop when you release the key while starting up? If it stops when you let go of the key, you are holding the key too long. Otherwise, it sounds like the starter interfering with the flywheel. Check to make sure its not loose.
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Old 05-19-2003, 04:59 PM
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96z
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Originally posted by PatriotTA
Does it stop when you release the key while starting up? If it stops when you let go of the key, you are holding the key too long. Otherwise, it sounds like the starter interfering with the flywheel. Check to make sure its not loose.
Im defenitly not holding the key too long. It happens from the moment I turn the key till I let off...Ill go check the starter..
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Old 05-19-2003, 08:07 PM
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Anyone?
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Old 05-19-2003, 09:48 PM
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Cool

Make sure the starter gear is engaging the flywheel. There may be too much clearance and it's caused the flywheel teeth to wear down and now it's spinning on each other.

-Shannon
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Old 05-20-2003, 12:05 AM
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my guess is your starter. make sure it is tightend down completely, i have had this problem before and that is what it ended up being.
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Old 05-20-2003, 12:43 AM
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Did you put an aftermarket flywheel on the car? There's a chance you need to shim the starter away from the flywheel, it could be binding up a bit...

Dave
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Old 05-20-2003, 01:40 AM
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No its the stock flywheel. I didnt get a chance to take a look at before I went to work and its dark out now....Ill take a look at it tommorow...hopefully Ill just have to tighten it up a little...
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Old 05-20-2003, 01:46 AM
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Step 1: Pop the hood
Step 2: Grab pliers or pipe wrench
Step 3: Remove cat from belts
Step 4: Close hood
Repeat as necessary.
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Old 05-20-2003, 02:09 AM
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Matt I had to shim the starter with my Street Twin. Without them I get a very unpleasant grinding noise.

Ryan
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Old 05-20-2003, 10:33 AM
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What exactly is involved in shiming the starter? How do you know its mating up right if you cant see anything underneathe there?
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Old 05-20-2003, 04:22 PM
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I just got the starter off. It was on tight and it seems like the clearence bewteen the two is fine.

hmmm
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