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Sedans Chevrolet Impala Chevrolet Impala heavy oil consumption
41 messages, Last post on Nov 01, 2009 at 6:14 AM
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I just brought this car a month ago and had my first oil change as soon as i got the car. it has 74,000 miles on it and i noticed that it used a quart at about 3,300 miles.I do a lot of driving back and forth to work 100 miles round trip everyday Mon. to Friday all highway miles.does anyone else with the Impala with the 3800 engine experience any oil usage?
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Replying to: heyphillip (Mar 24, 2007 2:11 pm) ...I had a 2002 Impala LS with the 3800 V6 just prior to my current '06 LT2 Impala. It had about 89,000 kms (55,600 miles ) when I turned in with absolutely no oil consumption problems at all..!! Sounds like the oil seals my be the culprit here. Sure hope it's not the rings..!! Let us know what you find out.. Frank 
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Replying to: mymitties (Mar 24, 2007 3:42 pm) |
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Replying to: heyphillip (Mar 24, 2007 2:11 pm) Ya' good point in other posting.. It could possibly be the PCV valve .... Lets hope it is as simple as this...!!! I have read that if the PCV valve is really clogged, the crankcase pressure forces vapors up through the breather element and oil residue is deposited in the air cleaner housing which eventually contaminates the air filter. Do you see any of this..?? Also, when both the PCV valve and air cleaner element become clogged/contaminated, the crankcase is no longer vented. This now causes the crankcase pressure to increase and results in oil leakage at various gasket surfaces. Do see any of this...??? Finally, a PCV valve that will not open and close properly could direcly affect the air/ fuel mixture and result in a rouger idle and/or hesitation. Do you have this..?? Phillip , were you able to get any background/history of the previous owner's maintenance visits when you got the car. FYI, the PCV valve should have been changed approximatelty every 15,000 miles... Let us know how you make out... Frank
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Replying to: mymitties (Mar 25, 2007 4:06 am)
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Replying to: heyphillip (Mar 25, 2007 7:17 am) YOU should also check for obvious oil drips underneath, on the ground and blue-ish smoke out the tail pipe... All signs of oil loss..... Frank
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Replying to: mymitties (Mar 25, 2007 8:08 am)
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Replying to: heyphillip (Mar 25, 2007 1:56 pm) Let's hope that the replacement PCV valve does the trick here.....It doesn't sound like you have any major oil leaks externally i.e. engine and on the ground.. So at least, this is good !! Cross your fingers...and keep us posted on this one. Frank
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| A quart in 3300 miles would be considered normal consumption in many new cars let alone one with your mileage. | |
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Replying to: csandste (Mar 25, 2007 8:45 pm) In my humble opinion, since the industry wide acceptance is around one quart /1000 miles, I personally think that one quart/3300 miles is slightly higher than I would like to see, even for a car with these miles (71,940) ....especially a CHEVY !! Frank
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