XJ40 ( XJ81 ) 1986 - 1994

No Spark

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Old Dec 12, 2010 | 11:02 AM
  #1  
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Default No Spark

It may not be a fuel issue, although I'm not sure. I can hear the fuel pump firing up though. But I don't have any spark from the coil. I will visit the bone yard tomorrow.
 
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Old Dec 12, 2010 | 12:16 PM
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mrtalk:
Even if the pump is running, it might not be a bad idea to confirm that you have full pressure at the fuel rail with a gauge. If your issue is spark related, the full tune up is probably in order anyway: plugs, wires, cap & rotor, coil, HT lead from coil. There is also an ignition amplifier that could be flaky. Maybe I'm being excessive... Scott
 
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Old Dec 12, 2010 | 02:57 PM
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Originally Posted by MidwestJag
mrtalk:
There is also an ignition amplifier that could be flaky. Maybe I'm being excessive
I hope you are!
 
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Old Dec 12, 2010 | 07:42 PM
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Check all the connections (clean and no corrosion) also power wire on the coil is prone to arcing and shorting out
 
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Old Dec 12, 2010 | 07:43 PM
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Also try fireing it up in the dark with a helper to see if there is any arcking going on
 
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Old Dec 13, 2010 | 01:55 PM
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There was a 94 under another car at the junk yard. I could only get the hood open about 10 inches and was able to pull out another coil for $5. I'll put it in an hour and let you know what happens.
 
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Old Dec 13, 2010 | 05:13 PM
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I put a new coil in, still no spark. Bad Crank Sensor, back to the boneyard!
 

Last edited by mrtalkradio; Dec 13, 2010 at 05:45 PM. Reason: Updated Information
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Old Dec 15, 2010 | 02:11 PM
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Default Still no spark

Today I put in another crank sensor, still no spark.
 

Last edited by mrtalkradio; Dec 15, 2010 at 02:12 PM. Reason: wrong part
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Old Dec 21, 2010 | 07:12 AM
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Default Update

I replaced the crank sensor, an had to splice the sensor to fit the connector.
Car Started . I siphoned out 22 gallons of 3 1/2 year old gas. I am going to add some dry gas and put ten gallons in and keep running her till she smooths out. Its a good day.
 
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Old Dec 22, 2010 | 03:59 AM
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That's good
 
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