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Comments
I also noticed that the consumption seemed to increase as I was getting nearer to the time for the oil change.
One other item is that I kept the dealership informed about this website and my responses about their service.
Good luck to you.
While driving to Chicago from Indiana I notice an issue when the engine went from 4 cylinders to 8. I could only replicate this problem If I drove 65-70mph on 4 cylinders anywhere from 5-8 miles without engaging all eight cylinders. After the extended 4 cylinder mode driving I would gently press the gas to engage all 8 cylinders and a plum of smoke would exit the exhaust. I am not talking about a small amount of smoke either, It was a significant amount.
The challenge is to keep your car from engaging all 8 cylinders for an extend period of time. A neighbor who owns a 2007 was able to replicate the exact same problem Has anyone also notice this problem?
Steering Fluid gear leaking - replaced
Tie Rod Ends loose - replaced
Small Leak from Intake Gasket - replaced gasket
Front Crank Seal leaking - replaced seal
Trans Fluid leak - replaced trans line fitting
Gasket replacement covered by factory warranty
All else covered by extended warranty
We will see if this solves the problems. I'll take it back in 500 miles for another oil consumption check. Does seem to be a lot of "problems" in a car only 4 years old and 51,000 miles! My trust in this car has been severely compromised. I see a trade in near future!
I'm happy to hear you've been in touch with our Customer Assistance Center - do you have a case number (71-**********)? I would be happy to check in on it to see if there are any updates for you.
It is correct that the accepted rate of oil consumption in passenger vehicles is 0.946 liter (1 qt) in 3200 km (2000 mi). All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. When a piston moves down its cylinder, a thin film of oil is left on the cylinder wall. During the combustion process, part of this oil layer is consumed. As a result, varying rates of oil consumption are accepted as normal in all engines.
Other factors can affect oil consumption, including continuous driving at high speeds/high RPMs may increase oil consumption (because this may not always be an everyday occurrence, it is hard to determine exactly how much the oil economy will be affected) and engine wear (piston scuffing, excessive piston-to-wall clearance, tapered or out of round cylinders, worn, damaged or improperly installed valve guides, seals and piston rings will all cause an increase in oil consumption).
Again, I'm happy to check into your case if you wanted to get that number to me!
Regards,
Sarah
GM Customer Service
have driven chevies for years-my opinion,buy base impala-no frills-drive it until it falls apart.
had a lumina that had 150,000 miles on it.all did was change air filter,oil filters,rotate tires and put on tires when needed.would still have car if woman had not run a stop sign and totaled car.
for a fun ride get a stang,fast and friendly
gm got public money and will now sell their high end cars to welfare queens, take'm back when they don;t pay and than selle;m again
Sarah, GM Customer Service
We hope that the service visit on Friday goes well; if you want for us to check into the situation further please email us at socialmedia@gm.com (include your name and Edmunds username, phone and address, the last 8 digits of your VIN and mileage, and the name of your dealership).
Sarah, GM Customer Service
I just checked in on that case and see that it is currently with your District Specialist, who is doing their best to check into this further. I will make your agent aware of your post and concerns and do my best to keep an eye on it. As your current agent is with a more specialized group within customer service, I will not be able to take the case over or anything like that, but I can keep you updated.
Thank you for your service to our country!
Sarah, GM Customer Service
Looking forward to your update!
Sarah, GM Customer Service
Have you already gotten this evaluated by a dealership to see what may be going on? If you want for us to follow up on this with your dealer (if involved), please send us more information via email at socialmedia@gm.com (include your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation).
Sarah, GM Customer Service
Well they finally found out what is wrong with my 2008 Impala 3.9 and hopefully this will resolve the problem. Its something to do with the vavles , I'm thinking valve seals or valve guides. Well they taking the vehicle Monday 8th of April and keeping it up to a week. I will keep everyone updated once the job is done. Oh yeah I lost about 2 qts. in 800 miles according to oil consumption test.
Any car other than professional racing cars should easily get two thousand miles per quart of oil. That level of normal oil economy includes domestic brands, foreign brands, and pickup trucks. Excessive oil consumption threatens the environment, adds owner cost, and increases customer inconvenience.
I don't know if you're still on here at all but I have an Impala LT '08; bought it brand new and has the same problem you describe with your Impala 09. I'm thinking of taking it in to have it looked at. I've been scared since money is tight but something needs to be done. My Mom and I want to go on a trip for Thanksgiving to visit family and I'm afraid to drive the car on a long trip (being 2 women alone). Was just wondering what the outcome was of your vehicle? Was it resolved? Is your car running OK now?
Hope to hear from you.
I am experiencing the same problem with my Impala LT 2008. Oil consumption issue; my Mom and I want to take a trip to visit family for Thanksgiving but I am scared to take it on any long trip (690 miles there and back). It sounds as if the problem must be 1 or more displaced valve seals. It's the only thing that makes sense. No leaking oil, no smoke from the tail pipe. So there isn't a leak and it's not burning oil. It has 59355 miles on it; have barely driven the car. Change the oil regularly and always have since the day I bought it brand new. Was shocked when I took the car in for an oil change and the technician tells me there was no oil on the dip stick!! What?!?!? I take care of my elderly mother and I cannot risk taking this car on a trip and having it break done when my Mom has a heart condition. We just paid the car off too... Cannot believe it!!
Please help...
By the way how is the Verano working out? I've heard that it also has engine problems and that's what steered my away from it besides having payments.
Thank you again for your input! You've been a great help!
Compression is not required for the oil control rings to do their jobs.
Articles like this one http://www.edmunds.com/car-care/do-i-have-to-use-the-manufacturers-oil.html (and take special note of the Valvoline representative's comments about the GM dexos requirement ) served to support consumers choices to just go for cheaper products. Today Valvoline has reversed their position and now have a licensed dexos product. http://www.centerforqa.com/gm/dexos1-brands