Last post on Apr 22, 2013 at 10:05 AM
You are in the Lexus GS
What is this discussion about?
Lexus GS 300, Lexus GS 430, Sedan
#291 of 300 Re: 2006 lexus gs300 oil consumption problem [cfrisk]
Feb 13, 2013 (7:58 pm)
Trans slipping has nothing to do with 2006 lexus GS300 oil consumption. Anyway, I reside in Canada and brought my 2006 Lexus GS300 to the dealership to complain about burning oil. They put me on an oil consumption test. I brought her in 1K miles later and they put me on another oil consumption test for another 1K miles. I did not mention the CSP that were sent to US owners. I will wait and see what they say when I bring in my car after another 1K miles. I will keep you posted.
#292 of 300 2006 Lexus GS300 burning oil in Canada
Feb 13, 2013 (8:02 pm)
Have any Canadian owners have this issue resolved in Canada?
#293 of 300 Re: Oil Consumption [caligirl1966]
Feb 14, 2013 (5:46 am)
Pistons? Or piston rings???? I thought the piston rings were the driver for this recall. Confirm and let us know as my rings were the only item replaced.
#294 of 300 2006 GS300 misfire
Feb 18, 2013 (6:47 pm)
Took my car into the dealer. It has exhibited many of the problems associated with the misfires caused by ring issue for a few years. I never knew what was causing these problems. I have to say, Lexus is a great company. How many companies stand behind their product when it is 6 years old? Lexus is taking care of the problem.
I had a brand new Infinity I35 and it had font end vibration problems that I noticed on my ride home the night I bought it. They made it better and almost imperceivable after having an engineer look at the car and suggest some adjustments to the steering rack but it came back..... could never get rid of it and Infinity corporate said, if your not happy, lemon law the vehicle. Imagine how nice it would have ben to have them admit there was a problem and step up to do the right thing? Since then, between my wife and I, we have had 4-5 cars. No one has given us the type
of customer service we get from Lexus and oh..btw, there will never be a Nissan product in my garage again. I know they make a great product and have made many owners believe in thier autos....every manufacturer can have issues. But the best step up and take ownership of their problems! Thank you Lexus.
#295 of 300 Update- ring repair is done
Feb 22, 2013 (8:27 pm)
Picked up the car. Only drove about 10 miles in stop and go traffic. Idle was nice and even and the car seems to have more power. Hopefully she I'll run nicely for another 100,000 miles.
#296 of 300 GS300 failed smog test P0171 system too lean
Apr 05, 2013 (6:34 pm)
2001 GS300 with 75K miles failed smog test with check engine light on. Engine scanner finds code P0171, system too lean.
Researched the net and tried a few diagnoses:
1. The Mass Airflow Sensor was suspect but was electrically measured fine. There was a leak at the intake air filter, causing a collection of dust on the MAF sensor filament. Cleaned that out with electric contact cleaner. Did not solve the problem. Still code P0171.
2. Checked air leaks on intake vacuum lines by blowing cigarette smoke into the air intake and ran engine. No leaks found
3. Checked all oxygen sensors. All were fine.
4. Check gas tank, gas cap leaks, fuel lines... all looked OK.
Could not find the cause of P0171, system too lean. Lexus dealer suggested contaminated fuel system causing lean mixture. They proposed replacing fuel pump, fuel filter, 6 fuel injectors, flushing and cleaning fuel system, total about $3700. I rejected their stupid and greedy proposal.
The engine is running with hesitation during acceleration, so MAF sensor may have been damaged by dust corroding the sensor filament. I swapped the $220 MAF sensor from another car. P0171 code was cleared. Car passed smog test.
The MAF sensor looked and measured OK but the dust may have corroded and altered the heating and current profile on the heating and sensing filament, causing erroneous data being sent to the ECU.
P0171 problem solved cheap WITHOUT THE EXPENSIVE HELP by LEXUS DEALER.
The cheap knocked off MAF copies sold in eBay for $30-40 seem to work OK.
#297 of 300 GS300 Oil Consumption - Misfire
Apr 09, 2013 (12:52 pm)
I've been battling Lexus over the Oil Consumption issue for months now. My car sucks down .5 qt./1000 miles (1 qt./1,700 mi.) and it misfires too. The Lexus manual allows for this kind of consumption ... a manual written by Lexus. I did receive a "warranty extension" letter from Lexus, but they're battling me at every step of the way. They absolutely know there's a problem with the '06 GS300 because they also sent out a "notice" letter prior to the warranty extension letter (I didn't receive the former), which lists the codes your car will evidence if it's having the problem ... codes, incidentally, which my car produces. NOW, my dealer is trying to tell me that since I didn't put NGK factory plugs in the car, my "aftermarket" plugs probably caused my misfiring. OK, then what about the gross oil consumption and all the other GS300's with major issues - caused by aftermarket batterys perhaps? I practice law and I'm seriously considering a class-action effort if this continues. I've driven Honda and Toyota products starting at age 8 with motorcycles, various Accords, an S2000 and a few Land Cruisers and NOT ONE of those Japanese engines has EVER leaked or consumed a drop of oil. Don't tell me this is "normal" ... maybe if it were a 1980 GMC pick-up.
#298 of 300 Re: GS300 Oil Consumption - Misfire [semilegal]
Apr 10, 2013 (7:41 pm)
Had high oil consumption in 06 GS300 we bought new. Started 87k mile range. Ended up getting short block for bad oil rings. Cured problem. Cost was high but dealer and Lexus both kicked in to get it below half of retail. I complained some more to Lexus and was told they could do no more. Car runs great now with 22k more on it since short block. Definitely shook my faith in Lexus. Good luck.
#299 of 300 Re: GS300 Oil Consumption - Misfire [dave394]
by Mr_Shiftright HOST
Apr 11, 2013 (7:43 am)
Dave, what was your oil consumption level?
I think "normal" has to be viewed in relation to the age and mileage of the car.
#300 of 300 Oil consumption
Apr 22, 2013 (10:05 am)
The bulletin is mostly for misfires. We have seen quite a few GS with oil consumption. Usually we cannot do much for it since Lexus uses a rule of 1qrt per every 1200 miles. If we can get the car to misfire as stated within the technical bulletin then the car will receive new pistons and rings (depending on the year).
It seems most of the misfire is from excessive build-up of carbon on the intake valves and piston rings.
Years before this bulletin we just did a top engine clean with a caustic solvent and cleaned off intake valves by removing the upper intake manifold and cleaning the valve tops.
At that time the root of the problem wasn't known.
Lexus stepped up and made a new bulletin to replace internal engine components.
Some engines may still have issues afterwards as we are seeing now.
Many if them run fine but still consume more oil than they should.
Some engines will be replaced due to the consumption because we believe that the cylinders have become uneven in wear or the cylinder walls are too smooth without enough cross hatches.
We are told not to hone cylinders because the pistons use a fitted type piston matched to each cylinder bore. Pistons are labeled type a,b,c.
I hope the next step Lexus takes fixes the problem for good. There are many upset customers over this situation.
I wish everyone good luck with the repair of their car.