mred

iTrader: (5)

i changed my oil in my truck and i reset my oil change light back to 100%.
after 1500 miles or so i have to add 1qt 1/2 and of coarse the light comes on telling me that it is low. then at 2000 miles it is telling me to change oil in
the truck. the truck does not smoke nor does it leave any puddles behind etc....
any ideas
thanks
Ed

mred

iTrader: (5)

any input on these links,that will help with the trucks as well?
https://ls1tech.com/forums/generatio...-question.html
https://ls1tech.com/forums/generatio...-your-pcv.html

Mangled03gmc

iTrader: (95)

You could undo the PCV or add a catch can, to see what kinda oil blows into it.. Is this a stock engine???

SilverDog

Gives us some specs on the truck(Year, Engine size). I would recommend a catch can. It doesn't really solve the problem but it's better then letting your engine consume the oil though the intake. Just recently put one of my dad's truck and it's producing about 1/2 cup every 150-200 miles(think he needs a new PCV valve). Not a big fan of removing the PCV system.

mred

iTrader: (5)

no mods to the truck,its as stock as it was when it drove away from the dealer in 2001.
5.3 etc....
going to dealer and getting a "PCV" from the dealer and crossing fingers.
Ed

SilverDog

You probably already know this but there are two version of PCV valves. Fixed orifice and the type that rattle (forgot name). The fixed orifice is the newer version which they say works better but you'll still have trouble.

mred

iTrader: (5)

you know what is funny,is the hummer we just did a tune up on has a empty pcv.no check ball,its just a 90 elbowi dont know what to do.
other than just tell them to just drive the tahoe and add oil as needed.

dogger

iTrader: (1)

going to a ls6 valley pan with an inagated pcv works to solve this. that is what I did on my 6.0 it would use about 2.5 quarts in 3k miles

Charlie@LsXperts

iTrader: (12)

Cap off the pcv on the intake and throttle body (or right by it), Connect the two valve covers with a hose and run a metco twist in breather in the oil fill hole on the passenger cover, This will get rid of parasitic oil consumption, if it still consumes oil then it is rings or valve seals

1FastBrick

iTrader: (17)

What kind of milage do you have on it???

AT about 80k on my 2000 5.3L I was using almost 2 quarts every 2000 miles and the low oil light would come on. I switched to Valvoline High Milage Oil and went from 5-30 to 10-30. No more oil loss. This also reduced over all engine noise.