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Re: Code P0305 check light on
keep eye on your crankcase oil, unless you have already dealt with the leaky lower intake gasket defect... that could be dexcool on the plugs. do any of the plugs smell like dexcool?
seafoam.... 1 can in the tank, a 1/2 a can into the oil
i would get a quart of gunk (or similar) oil flush, which you add to dirty oil and idle the engine for a few minutes. Then you do an oil change. Then you add new oil and 1/2 can of seafoam to the new oil.
I would not ride out that new oil change for 5000/7000 miles, but when the oil looks dirty which will probably be sooner than the recommended interval.
The sludge I found in the engine, and inside the lifters, was not hardened up, but still soft and easy to clean out when i did the rebuild... so I think engine flush + a can of seafoam might do a good job at freeing up the lifters and valves
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1999 Dodge Ram 1500 2WD 5.2L NV3500
1998 Chevy Lumina 3.1L (2010 DIY intake/head job, 2011 DIY A/C replaced, ran like a top til I sold it in 2014)
1999 GMC Sierra 4.3L
2014 Toyota Prius Four
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