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How do I replace spark pluggs on a 1996 Chevy Lumina van

Tiny
CHERYL KINNER
  • MEMBER
  • 1996 CHEVROLET LUMINA
  • 12,400 MILES
My van won, t star after driving locally, I will go to a couple of stoes and it runs great, but if I go to a 3rd place she won, t start, I have put fuel injector cleaner and gas and she starts up, (most of the time ) I took it to auto zone and they diagnose it as spark pluggs and wires?
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Tuesday, December 13th, 2011 AT 7:15 PM

4 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
That sounds nothing like spark plugs and wires especailly since you said it runs great otherwise. So when it wont start what does it do when you try to start it?Also have you checked for trouble codes in the computer?If not please do that and let me know what the exact code numbers are if you have any not the code descriptions.
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Tuesday, December 13th, 2011 AT 7:18 PM
Tiny
CHERYL KINNER
  • MEMBER
  • 2 POSTS
The code was PO 300 and he said random - multiple misfire detected ! But the code meens stopped up fuel injector ! What is the easiest way to clean them?
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Wednesday, December 14th, 2011 AT 7:05 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Why does the code mean clogged up injectors I have never heard that codemeans you have clogged up injectors.A random missfire could mean a lot of things plugs wires dirty injectors. How long ago has it been since you replaced the plugs and wires?
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Thursday, December 15th, 2011 AT 12:18 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0300 is normally caused by vacuum leaks and contaminated fuel

Go to this link: https://www.2carpros.com/articles/engine-misfires-or-runs-rough
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Thursday, December 15th, 2011 AT 12:37 AM

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