Question about Cars & Trucks
What causes a 2004 Chevy Colorado to use oil? No leaks. Uses a quart a week.
Can't use it like that
Have to check Manufacture Bulletins
You got cylinder ring or valve issues
Those inline 5 cylinder motors has head problems
Google that & see what you can find
You could try a dealer just for the info,but I doubt
they would be honest with you
Posted on Jul 26, 2013
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Posted on Jan 02, 2017
SOURCE: my 2008 uses a ton of oil also
CHECK FOR OIL LEAKS AROUND TIMING COVER.FRONT CRANK SHAFT SEAL COULD BE LEAKING.OIL FILTER NOT ON TIGHT OR ITS SEAL DAMAGE WILL LEAK.REAR MAIN OIL SEAL LEAKING.CHECK UNDERNEATH CAR YOU GOT A LEAK SOMEWHERE.ENGINE TOO YOUNG TO BE BURNING OIL.
Posted on Aug 25, 2009
No it's not have your engine check for oil leaks, also have then do a wet and dry cylinder compression test this will let you know if you are burning oil, also have them check the spark plug's.Hope this was helpful.
Posted on Dec 02, 2009
According to GM 1 quart per 1,500 miles is an acceptable oil consumption tolerance. 1 quart in 3k isn't bad.
I've had several gm 3.1 and 3.4 liters that have had there oil consumption issues remedied after the lower intake gaskets where replaced due to coolant leaking.
There are a couple of common problems that can cause oil consumption. Valve seals, bad rings, and PCV valves.
Valves seals would require a valve job which would requirethe removal of the heads. Rings would require a motor rebuild. Both of these are expensive options and oil is still pretty cheap.
Replacing the PCV valve might help. On the 3.8 it will be under the MAP sensor on the passenger side of the intake plenum.
As for as the intake gaskets, its a possibility but I don't have any hard evidence this could be the problem on a 3.8. Eventually the gaskets will start to leak oil. If you decide to replace them at that point I guess you will find out. I wouldn't do it on a hunch, its not a cheap repair.
Posted on Oct 07, 2010
My 2001 was having the same issue. I replaced the PCV valve and it fixed the problem. Total Cost 5.00. It is easily accesable but you may have difficulty finding it. It is located Left Rear Top of engine (Passenger side). Its brass and it screws in. I went online at my library and found diagram at this location. http://content.chiltonsonline.com/Repair/PrintView.aspx.
Posted on Dec 29, 2011
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