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Yanking the motor and tranny this upcoming weekend. This summer when I was driving it everyday I noticed that when I would first start the truck it would blow a little bit of blue smoke and anytime I would cob on it it would really put out some blue smoke. What has me confused is that I had put a new headgasket on the truck in June... so what could this possibly be that is causing this smoke. I know its oil because it burns through it. It has 70000 miles on the original motor. So what are your thoughts as to what could be causing the excess burning of oil. Any insight and suggestions are appreciated. Thanks
Jeremy

I don't know much about the stock 4 cylinders, but it sounds like it could be the intake valve stem seals or valve guides.

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anybody got any more input to this?

that is what I was leaning towards as well.... valve stem seats is what the symptoms seem to be leaning towards

Has anyone else experienced this before with their 4 cylinder luvs as well?

valve stem seals, if the blue smoke goes away when it warms up not bad valve steam seal are tried.

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2006 2500HD Chevy Duramax 4 inch pipe, PPE hot programer,banks air box, shift kit, 2001 S2000. 1996 Proline 220 Cuddy Fish.1992 Pursuit 2650 diesel, 1980 Chevy Luv 4x4 Weber 32/36.

i had the same problem but i was getging blowby into the head.
so what i come to look at was
1. head gasket (you already said it couldnt be that)
2. cracked head or block
3.broken ring
4. what the other guys said.
after i took mine apart i found out i just had a broken ring. thank god i didnt do any damage i replaced the ring did a little extra work and now she runs like a bat out of hell!!!!

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if the party lights are on.....buckle up boys and watch this shit!!!!!!