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1991 Buick LeSabre Question: my 1991 buick lesabre cranks but no start - no spark at all

 

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1991 Blue Bomber, Palmdale, CA, August 25, 2013, 22:25
 Rookie

changed cam & crank sensors - still no spark in any of the wiring to the coil pack - where is the "engine control module" on this car. can't find info online - please help

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  • Answer #1

    pushrod August 26, 2013, 04:28
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     Master

    The IGNITION MODULE is under the coil pack, the thing that ALL the plug wires go to.
    Both module and coil pack needs to be replaced at the same time! This is most likely your trouble.

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    1991 Blue Bomber, August 26, 2013, 11:10
     Rookie

    thanks pushrod - thats where everything seems to be directing me...thanks for the confirmation

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  • Answer #2

    goodguy August 26, 2013, 05:41
     Master

    I would check the resistance on the coils first if they are ok then I would check the power going to the module if there is no power then I would check for broken wire or a bad pcm

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    1991 Blue Bomber, August 26, 2013, 11:11
     Rookie

    thanks goodguy - wires are old, i'll see to replacing with the module & coilpack

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  • Answer #3

    Greg's Orange Auto (13179 Answers) , Orange, CA - (714) 361-9386
    globalhelper August 26, 2013, 06:25
     Master

    AGREE WITH GOODGUY NAD PUSHROD

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    1991 Blue Bomber, August 26, 2013, 11:12
     Rookie

    yup - thats another confirmation - thanks to all you guys!

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    pushrod, August 26, 2013, 14:30
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    You bet!

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