sudden death of a 90 LE - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-28-2005, 11:05 PM   #11
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Um, yeah, good point. No codes? Is it a fluke?
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Old 02-28-2005, 11:56 PM   #12
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I doub't thats a fluke... If ti stalls out and then restarts with no issue than I'd say yes...

At this point I'm thinking Crank Sensor, as there was no spark... If this is the problem it will become more intermintent as time goes on..

If the crank sensor fails there will be no spark, no fuel injector pulse, no tach wiggle, as the ECM will have no clue that the engine is rotating.. If this happens again let us know..

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Old 02-28-2005, 11:58 PM   #13
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yes, there were no codes... no it was not a fluke becasue it jsut did it to me again when I took her for a spin around the parking lot.
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Old 03-01-2005, 12:00 AM   #14
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Quote:
Originally Posted by theprodigalstranger
yes, there were no codes... no it was not a fluke becasue it jsut did it to me again when I took her for a spin around the parking lot.
Does the car stumble, sputter or just flat out quit with no notice at all... By the time you notice the car has already stalled?

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Old 03-01-2005, 12:08 AM   #15
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I thought about that but doens't a crank sensor give a code??
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Old 03-01-2005, 12:16 AM   #16
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I started it up, drove around a little bit and was in the middle of going over a speed bump when the check engine light flickered on and the engine died. I didn't notice any sputtering or stumbling, but can't say for sure that there wasn't a little. The first time it did this, there was absolutely no sputtering or stumbling, just ceasing functionality.
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Old 03-01-2005, 07:07 AM   #17
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Sounds like a crank sensor to me.

And the reason I asked if you had a tach, is if the ignition is working fine up until the Coils, the tach jumps around when cranking.


-justin
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Old 03-01-2005, 10:23 AM   #18
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it could be the fuel pump like was mentioned earlier. But I'm just saying stuff, i'm not sure of anything. I wish it was more convenient to change a fuel pump than it is.
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Old 03-01-2005, 12:33 PM   #19
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Quote:
Originally Posted by jwikoff99
I thought about that but doens't a crank sensor give a code??
You'd be supprised... A lot of the older cars would not always throw a code even when the sensor was bad.. The Newer OBD II PCM'* are more complex...

Usually if you have low fuel pressure you'll get a stumble or sputter, unless the pump just fails completely... But the no spark condition points towards the crank sensor...


He could have a failed ICM or Crank sensor.... My thought is with the crank sensor

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Old 03-01-2005, 02:08 PM   #20
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No spark = bad Ign contol module or connector.
No spark, No inj. pulse = bad crank sensor.
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