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1996 Chevrolet Silverado 5.7 liter Vortec
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Fireball
New User
Jul 1, 2018, 4:58 AM
Post #1 of 2
(1558 views)
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1996 Chevrolet Silverado 5.7 liter Vortec
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I purchased the vehicle 3 months ago. It ran fine. I was curious what the plugs looked like so I pulled each one out one by one and cleaned them. I only used a wire brush..no cleaner or chemical. After putting them all back in and reconnecting the wires the truck runs extremely rough. Hesitation on acceleration and rough idle. What or where should I troubleshoot to diagnose the issue? Thanks in advance for your time
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 1, 2018, 7:24 AM
Post #2 of 2
(1540 views)
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Re: 1996 Chevrolet Silverado 5.7 liter Vortec
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NEVER, let me repeat NEVER clean a spark plug with a wire brush.
You would have been much better off using a cleaner or chemical. that would have been harmless.
Using a wire brush leaves a metallic coating on the porceleon that acts as a conductor and causes the plug to arc to ground.
Now what you have to do is head off to the parts store and purchase new plugs. DELCO brand only! Don't make a second big mistake.
Next time leave well enough alone.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 1, 2018, 7:25 AM)
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