1993 LWB No Spark Past Cap
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Thread: 1993 LWB No Spark Past Cap

  1. #1
    Join Date
    July 26th, 2018
    Asheville, NC

    1993 LWB No Spark Past Cap

    Randomly died and will not start. I have massive spark coming from the coil into the distributor cap but no spark past there. I've tried swapping the cap and rotor with genuine and after-market parts and still cannot get a spark.

    What am I missing here? Any help is appreciated

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  3. #2
    Join Date
    July 21st, 2016
    Tucson, az

    Re: 1993 LWB No Spark Past Cap

    I have a '92 RRC. Have you replaced the Amplifier Module (AM)? I suspect that your year has the same. On my truck that Amplifier Module is attached to the distributor. I know for sure that if the AM is faulty, you will never get spark to a plug.

  4. #3
    Join Date
    April 15th, 2014
    Wimbledon UK

    Re: 1993 LWB No Spark Past Cap

    If the coil makes a spark then all upstream triggering, voltage etc is ok and working.

    If you loose it at distributor cap, it must be cap or rotor. Usually the rotor as it can track down to earth via central spindle.

    Possible to get more than one rotor failed.

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  6. #4
    SOPHOMORE ROVER Mikieman's Avatar
    Join Date
    February 19th, 2016
    St louis
    I’m going with the cap and rotor solution as stated by rrLondon
    Replace them first before you change anything else
    and If it doesn’t start after you replace them
    Try adjusting the timing slightly
    im an american i dont speak english

    91 classic..it is now parts

    92 lse... not a bucket of rust

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