90 lasabre help - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-18-2006, 05:34 PM   #1
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Default 90 lasabre help

i work at autozone and im trying to help a customer

he has a 90 leasbre and it will start sometimes and run fine for 2 mins or so and die.

or sometimes it wont start just turn over

he has all items on the list new:

fuel pump
fuel filter
spark plugs
wires
all vacuum lines
new injection relays

anyone help me its outside of my knowledge whats goin on now
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Old 12-18-2006, 06:45 PM   #2
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Remove the ICM and run it through several test cycles, make sure the ICM warms up... a couple of test cycles will not do it... short of that either a bad crank sensor or possible bad ECM

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Old 12-18-2006, 08:05 PM   #3
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thanks ill report back tommorow and see what happened
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