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11-19-2018, 04:59 PM
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#1 |
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Registered User
Join Date: Sep 2015
Location: Haughton LA
Posts: 75
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2001 5.3 starting issues
Guys,
My 5.3 take about 3 times turning over before I get spark, does anyone know why it takes so long? it was pulled out of a Tahoe, computer flashed, it runs after the long start process, it is definitely spark issue... Thanks |
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11-19-2018, 05:43 PM
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#2 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 2001 5.3 starting issues
Which way are you checking spark? Is this every time, or just sometimes.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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11-20-2018, 08:57 AM
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#3 |
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Registered User
Join Date: Sep 2015
Location: Haughton LA
Posts: 75
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Re: 2001 5.3 starting issues
I'm checking spark with a timing light, and its every time... Thanks
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11-20-2018, 10:08 AM
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#4 |
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Senior Member
 
Join Date: Feb 2014
Location: new smyrna beach fl / 29 palms cal
Posts: 1,727
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Re: 2001 5.3 starting issues
Do you mean you have try to start it three different times or Are you counting revolution I personally have no idea But thought the clarification may help someone else to diagnose your problem
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11-20-2018, 11:46 AM
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#5 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: 2001 5.3 starting issues
Try checking at the coils themselves. Spark is pcm controlled, so either its not being commanded (tuning issues, coil driver issue, other code preventing spark), or there is an intermittent issue with the wire or coil (or the wiring to said coil).
Also curious as nsb29 said, is it three attempts, or three revolutions?
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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