C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help--Engine cutting out

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Old Feb 6, 2010 | 02:59 PM
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Bob2.0's Avatar
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Default Help--Engine cutting out

Hi,
My car was making a whirring whine sound, which turned out to be the bearing in my alternator. I changed the alternator, and it's fine. It did start out at 15 volts and came down to 14.5 which I think is okay.

But, on my test drive the car began to cut out. It's never done that before.

It's a 94 coupe, automatic. I changed the opti months ago, new plugs wires, and waterpump.

Any clues? Bad alternator?

This is my only car and I really need it for monday so any help you could give would be appreciated.

Bob

Last edited by Bob2.0; Feb 6, 2010 at 02:59 PM. Reason: left out car particulars.
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Old Feb 6, 2010 | 04:30 PM
  #2  
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engle1147
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What "brand" did you get for the new alternator?
Recheck your connections at the alternator and battery. Checking the PCM for stored trouble codes is also a good place to look. On the next test drive watch the cluster volt meter and see if it dips as the engine cuts out.

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Old Feb 6, 2010 | 06:19 PM
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Thanks for the reply. I appreciate how great a resource formum members are.

Someone told me that it could be a result of my PCM resetting itself after the battery was unplugged. Does that sound right?

I drove it and the check engine light came on for a few seconds when I started, but went right off, and I didn't have another incident.

I'll check the codes tomorrow.

Thanks again! You are awesome.

Bob
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Old Feb 6, 2010 | 11:38 PM
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did you remove battery cables? and are they secure? Is the battery lead on the alternator tight?
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Old Feb 7, 2010 | 04:44 PM
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Hi,

I'm going to recheck the connections. When I did the paperclip short trick to see the diagnostics, I got this.

1 c12 ---

4 H15 ---

9 ---

A ---

1.0

The service engine light keeps coming on, and it's still cutting out. I don't get it.

Help me obi wan!

Bob
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Old Feb 7, 2010 | 05:58 PM
  #6  
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FIXED!!!

Thanks!
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Old Feb 7, 2010 | 07:57 PM
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Originally Posted by Bob2.0
FIXED!!!

Thanks!
Well please enlighten us........was it your CTS ??

Saints are sucking eggs.....need to get it together 2nd half !!!
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Old Feb 7, 2010 | 09:31 PM
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Originally Posted by Al Borman
Well please enlighten us........was it your CTS ??

Saints are sucking eggs.....need to get it together 2nd half !!!
They did
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Old Feb 7, 2010 | 10:02 PM
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Originally Posted by aboatguy
They did
Yeahhhhh Dawg !!! What a great game !!!!!!!
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