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Old 11-09-2007, 12:45 PM   #1
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Default I need someone who knows bout this stuff

Also i have a question i have a 1997 buick park avenue and my engine blew up i took a engine out of a 1997 pontiac bonneville and it runs great only thing is every now and then the car shuts off for no reason and i got it scanned wit the snap on scanner and no codes come up the shop told me it may be my computer not knowing what to do can anyone help
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Old 11-09-2007, 01:18 PM   #2
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That sounds a lot like a Crank Sensor Failure

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Old 11-11-2007, 06:12 PM   #3
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You may check the ground since my old 96 had that problem, it would shut off at anytime and after about 20 min would restart. The dealer finally found the problem on the drivers side under the dash. after replacing the fuel pump 2 times.
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Old 11-11-2007, 06:21 PM   #4
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Quote:
Originally Posted by jr's3800
That sounds a lot like a Crank Sensor Failure
that or the coil pack...

Does it tend to do this more cold?
or hot as well ?

If so try pouring some hot water on the coil pack then start ..

My century did this we changed everything then tried that trick only to have it start right up.
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Old 11-11-2007, 07:11 PM   #5
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idk about pouring water on them....MAYBE misting...getting my coils/icm slightly damp is what cost me $500 in new parts.
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Old 11-11-2007, 07:31 PM   #6
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Quote:
Originally Posted by Lowrider0308
idk about pouring water on them....MAYBE misting...getting my coils/icm slightly damp is what cost me $500 in new parts.
That would be the first time I have heard of that one Andrew... Thats extremely unusual..

The Module is a sealed unit..

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Old 11-11-2007, 10:43 PM   #7
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well maybe the coils getting wet took it out...or it had a bad seal....idk...I would just be careful how much water you pour on it...
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Old 11-12-2007, 12:28 AM   #8
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i'm pointing my finger at a ICM (ignition control module)
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Old 11-12-2007, 08:19 AM   #9
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First thing I would consider is checking all connections and cables. Battery cables at both ends. A large project like this can have a oopsie or two where something wasn't tightened fully.

Second, from personal experience.. Crank sensor.
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Old 11-12-2007, 10:07 AM   #10
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Was the harness @ the firewall disconnected? That was causing a no-start condition on my swap as the connector was slightly off-kilter when reinstalled.

Also, check your sensor grounds. They should be at the bottom of the ICM, on a stud that goes through the cylinder head.
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