NGK's a little long in the tooth
- Thread starter jayjr1105
- Start date
How did the car run before the new plugs? 
What was the gap on the old plugs vs. spec for new?
Original owner be like, "All mechanics are thieves".
Like a coworker who bought a Jeep...because..."Jeeps are strong and don't need maintenance".
Like a coworker who bought a Jeep...because..."Jeeps are strong and don't need maintenance".
Really not bad at all to be honest. Pedal seems a little more responsive nowHow did the car run before the new plugs?
Spec is .040 I didn't measure but I'm sure those middle two are way out of spec.
Wow. Any misfires?
They look just like the ones I pulled out of my 2011 Rav4, Gap in mm, not 1000's, minimum on mine was 1/8 of an inch. Still ran good, now maybe a little smoother, Toyota Denso's out, NGK's i8
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hope they got you home, coil is good1 WoW
Of all the phenomena we detail here, the warning that "old (widening) plugs strain the coils" is the least factually based.
Also, there's never been a post featuring excessively worn plugs AND a statement like, "so this is why I had 3 bad coils!"
Also, there's never been a post featuring excessively worn plugs AND a statement like, "so this is why I had 3 bad coils!"
Are those plugs still in operation when you removed them? The electrodes are already gone making it impossible to ignite.
They came from a 210k mile Chevy 6.0. The truck was recently purchased and I hadn’t gotten around to plugs yet. I started getting some pinging under heavy throttle, and upon pulling the plugs this is what I found. 64k miles later truck is still running great.