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Bracket Talk Bracket Talk Forum Tech Talk - by Abruzzi 2010 Silverado 6.0L spark plug issuesGo | New | Find | Notify | Tools | Reply | |
| 2010 Silverado 6.0L spark plug issues | Login/Join |
| DRR Elite |
My tow vehicle has been hard on plugs it seems. Last winter I changed them after owning the truck for a year. I have no idea how old they were. One was missing the entire electrode. So 10 months later, and maybe 4000 miles, I get a loud backfire in the exhaust....very loud. Tonight I check the plugs, and they look like they have been in it for 80k miles, not 4000. The gap is opened way up. Black on the ring. Even the outside of some of the plugs look corroded. AC Delco's. What can cause this? Only code recently is a downstream o2 sensor. Foxtrot Juliet Bravo | ||
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| DRR Elite |
It's an iridium plug. 41-162 Foxtrot Juliet Bravo | |||
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DRR Sportsman |
It using any oil? whats the dtc for the sensor? Michael Frizie ET 2471 | |||
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| DRR Elite |
No and I will check Foxtrot Juliet Bravo | |||
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DRR Sportsman |
I would think that O2 sensor issue could cause some other problems, if the PCM tries to compensate for a perceived rich or lean condition by trying to adjust the air/fuel ratio. I changed the Iridium plugs on my old 2002 6.0 HD2500 every 80-100,000 miles out of guilt, they always looked good enough to put back in for another 100K. Dan "Jim" Moore Much too young to feel this damn old!! | |||
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DRR Trophy |
Check for intake leaks. Also these are diplacment on demand engines, could be lifter issue. How does the engine sound? Have you kept up on the oil changes? are you using the factory recommended oil. Meziere Tech. Make sure your water pump is on whenever you check your coolant level. | |||
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| DRR Elite |
No dod. Engine sounds fine and runs smooth. Yes on oil changes with the recommended. The old code that it had previously popped was P2273 Sensor signal stuck rich bank 2 sensor 2 Foxtrot Juliet Bravo | |||
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| DRR Sportsman |
As far as the dtc set, if nothing is causing a rich condition on that bank, id replace that o2z. But position 2 is just the catalyst monitoring sensor which wouldn’t affect fuel trim. Michael Frizie ET 2471 | |||
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| DRR Elite |
That was my thought as well. I have had some tell me that they can trigger extra fuel to keep the cat hot. I had not heard that before. Three new plugs in it, cleaned the MAF and drove it. Everything normal. Even ran the hp tuners scan while driving and I didn’t see anything odd. I’ll eventually pull the injectors for a cleaning to see if that is any issue too. Just weird Foxtrot Juliet Bravo | |||
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| DRR Sportsman |
That is weird, Bucky. Especially with only 4K miles on the plugs. You said you replaced 3 of the plugs, did you look at all 8? Are they all mostly consistent in appearance? How many miles on the truck? I wouldn't think the injectors should need cleaning. Even the crappiest, cheapest gasoline is required to meet minimum detergent additive content these days, to keep fuel injectors functional. My 02 had just under 300K miles when I sold it, never had to pull, clean or replace an injector, and I always just used cheap regular unleaded. Dan "Jim" Moore Much too young to feel this damn old!! | |||
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| DRR Sportsman |
Agreed. dont think ive seen a failed injector for those MY trucks. however, alot of stuck piston rings and lifter/cam issues. The plug that was missing the strap wasn't #1 or 7 was it? Michael Frizie ET 2471 | |||
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| DRR Elite |
I don’t think so That was the last set. Foxtrot Juliet Bravo | |||
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| DRR Elite |
all 8 were consistent this time Foxtrot Juliet Bravo | |||
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Bracket Talk Bracket Talk Forum Tech Talk - by Abruzzi 2010 Silverado 6.0L spark plug issues
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