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I am looking forward to reading kristy's problem is solved.
PRESS RELEASE:
Vehicle Make / Model: Model Year(s):
CHEVROLET / EQUINOX 2010
GMC / TERRAIN 2010
Manufacturer: GENERAL MOTORS CORP. Mfr's Report Date: DEC 18, 2009
NHTSA CAMPAIGN ID Number: 09V489000
N/A
NHTSA Action Number: N/A
Component: VISIBILITYEFROSTER/DEFOGGER SYSTEM
Potential Number of Units Affected: 59031
Summary:
GENERAL MOTORS IS RECALLING CERTAIN MODEL YEAR 2010 CHEVROLET EQUINOX AND GMC TERRAIN VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 103, "WINDSHIELD DEFROSTING AND DEFOGGING SYSTEMS AND WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 101, CONTROLS AND DISPLAYS". THE SOFTWARE IN THE CENTER INSTRUMENT PANEL CAN CAUSE THE HEATING, AIR CONDITIONING, DEFROST, AND RADIO CONTROLS, AS WELL AS THE PANEL ILLUMINATION TO BECOME INOPERATIVE.
Consequence:
DRIVING WITHOUT A FUNCTIONING DEFROST SYSTEM CAN DECREASE YOUR VISIBILITY UNDER CERTAIN DRIVING CONDITIONS AND COULD RESULT IN A CRASH WITHOUT WARNING
.
Remedy:
DEALERS WILL REPLACE THE COMPUTER MODULE IN THE CENTER INSTRUMENT PANEL FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING JANUARY 2010. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463 OR AT WWW.GMOWNERCENTER.COM.
Notes:
GM SAFETY RECALL NO. 090298. OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .
I tried to email you directly, however was not able to since I don't have microsoft outlook
tidester, host
SUVs and Smart Shopper
The Bottom line is that I am experiencing and issue and yes I am getting the run-around with much frustration. I have come to this forum for help and guidance and
unfortunately I don't always have the time to proof read all my misspelled words, I currently do not have the luxury to sit down and breakdown every post I read and take them completely out of text. I am trying to get as much info as much as possible on a very limited time frame.
Thank you roho1 I do hope my issue is resolved as well.
I will try again right now. Perhaps I am doing something wrong?
tidester, host
SUVs and Smart Shopper
You should be able to use your normal email to get through to me. Please let me know if you are still having any problems emailing me. Thank you,
Mariah GM Customer Service
I can't complain about the dealership though - they were working with GM from the start, and provided transportation for me while the vehicle was in the shop. After having the transmission & transfer case, etc taken out and put back in (twice) I was a little concerned about whether they got it all put back together right. But so far, so good.
Please keep us updated with how your issue works out. I also have what sounds like a classic case of spark knock, but the dealer has told me that it's normal fuel injector noise. I don't necessarily buy that, but I would be much more concerned if we didn't have the 5 yr/ 100,000 mile powertrain warantee. I'll be trading mine in well before the warantee expires. So, if I melt holes in the top of my pistons, it's going to be on GM's dime.
On the other hand, if GM knows that issues now will cause engine longevity down the road, then that liability transfers to each owner down the road. And it starts with the original owner. Of course when I say 'liability' I am referring to $ in potential depreciation. Does it do it all the time or at times when pinging usually occurs? i.e. going up grades with a load, A/C on, tall gear, etc that sorta thing? If it goes away by changing to a high octane gas, then that will help protect the longevity of the engine, but at $ expense. I am not suggesting you do that for as long as you own it, but is good idea to troubleshoot to tell dealer. The engine should perform flawlessly on reg grade gas as stated in your OM. Best case scenario is they can reprogram or massage some software settings in ECU. But surely that is what they try first so..
Mine doesn't always do it at quite the same times an "old school" engine would normally ping. For some reason, it mainly happens when accelerating at medium throttle and gets heaviest just before the transmission shifts.
Mine too!- although I have to say lately the more mileage I put on the worse it is getting! I have brought this to my dealers attentions 3x and I met with them on
the 12th and so far there is a case open and GM-(is looking into the matter.) The only downside is GM is telling me it could takes a week, months etc., the only problem with that is I already contacted my states Attorney General Office and I legally have to give them 7days from the 3rd attempt (which was the 12th) to come back and fix otherwise I am suppose to be protected from the states" Lemon Law"
I just want my noxs to be fixed. It is a secondary noise during acceleration now at even 10mph-when it orginially started at 30-40mphs at 5,000 miles. I use the best gas out there from one of the most favorable corps. I also use the lower grade of 87-which also I was told by the dealerships service station that actually is better than the higher and it has more octane than the higher grades. I have followed all maintence as called for. There is nothing else I could do at the consumer level. gimmestdtranny made a good point is this going to leave holes?
saying that it's not really an issue, it certainly is an issue with me. Can it leave holes in the pistons? I already know that it's not my fuel pressure regulator, which by the way they were trying to say that's what the noise was, I was like "no I don't think so" this is a secondary noise and it's getting worse the more mileage and the more I drive the more I hear it. I tried all your suggestions in the very begining to troubleshoot well maybe it's this or maybe it's that, but with no prevail it's still there and I use one of the best gases out there, atleast thats what the dealership
suggested right from the get go.
But from here, I can't say what is wrong. Keep reading the posts and comparing notes. I do think that if detonation was the cause of this, the dealer would (assuming they are responsible and you have tons of wty left) not ignore it if they thought it could damage pistons. I do think that within the wty period the engine would fail. The problem is though, unless they gave you a new engine, then rebuilds don't always replace all parts that were under stress during the period the engine was misfiring.
As a visual...imagine inside your engine there is an area that gasoline is introduced to and ignites and explodes. And this is a timed (by the sparkplugs firing) and controlled explosion...which pushes the piston down, which turns a crankshaft because it is connected with (appropriately named) connecting rods to the crankshaft. Through geometry, it transforms a vertical force/movement, into a circular one, which naturally goes to the transmission, and then on to to power the wheels. Now...imagine if the gas were to ignite too soon. Before the piston reaches the end of its stroke (its range of movement as the crankshaft goes round and round) while it is coming up near where the explosion is going to take place in the CC. So imagine..if it explodes before the pistons reaches the right place for that timed event, then the explosions will try to drive the pistons back down right? But cuz it is connected to the crankshaft and with all the other parts of the engine operating in a timed-sequence, well it is still going to try to go to the end of its stroke right? (cuz it is attached to the crank which is turning) so this pinging or dieseling/knocking sound is the piston being fired fractions of a second sooner than what it should be, cuz the piston hasn't arrived at the perfect timed location for that explosion yet. And you get that sound so something has to give under such an extreme situation which the piston is not designed to operate that way, and the heat/explosion, eventually will literally burn a hole in the top of the piston...cuz the piston is aluminum and a softer more malleable metal than steel. So i will quit here, cuz now we're about to go onto metallurgy.
What you said here:
"is better than the higher and it has more octane than the higher grades"
is not accurate. Regular gas (or 86 and 87) is a lower octane than a mid-grade (91 or 92) and hi-test/premium gas (of mid 90's and up).
People get confused though because they think hi-test must be better than reg, but that is not the case. It is only different. And I explain this a fair bit in my post above as you will see. At the risk of being corrected on a technical term here, reg gas has more BTU (energy) in it than hi-test. Hi-test is needed for higher perf engines usually because they have a higher CR (compression ratio) and because all fuels ignite easier under pressure, the more pressure, the easier they ignite. That is why in a high CR engine, you want the hi-test so that the explosion doesn't happen too soon. You want that gas to not be so quick to ignite due to the higher pressures.
And hence that is where the term 'dieseling' comes from, because diesel fuel requires no ignition source to ignite. Merely being under enough pressure will do it.
Cool eh??!!!!
causing the knocking/pinging/rattling. I think beside the GMC terrian that the
Cadillac SRX crossover is the nox's sister car(?). I don't remember exactly word for word what it states, but it's exactly what I really feel whats going on with my car
all along, maybe it's pure coincendance.
mechanic told me at the dealers service station. I really appreciate your knowledge in this matter, I sent you another post in regards to a recall of this sort for the 2010 Cadillac SRX crossover, correct me if I am wrong isn't this car the sister car of the NOX?-besides the GMC terrain.
what if it is doing damage to the engine? I really
don't know I am no mechanic and all I can do is rely
on what I get and gather for information. I just feel
that when you buy a new car, it should
feel, sound and ride like one. This one of mine
does not feel or sound like a new car.
perhaps I maybe to critical.
I know the terrain is the sister BUT the
Cadillac SRX is very similar is styling
and design and I believe I read just (popular car mag on line)
a min ago that it uses the same platform as the Nox.
Don't know tho about your question on the SRX.
One thing you could mention to the mechanic at the GM dealer (altho not the one who told u the wrong info on the gas, cuz he obviously isn't too on the ball) but ask them that a friend suggested that maybe the timing is too far advanced on the 4 cyl Nox's. If they can adjust the algorithm to retard the timing a bit this should help if it is a ping situation. I suspect that GM has designed a timing curve that is far too advanced and the reason they did this was to increase fuel mileage enough that the cars meet the overly optimistic ratings they gave it. That is an old trick from way back to get better MPG by advancing the timing a bit, but of course in doing so, you run the risk of it pinging too easy under load, if it is advanced too far.
Next time you hear this knock, click the A/C off right away and see if the knock goes away. That will help unladen the engine and be another clue pointing to a ping situation. Make sure you are not in defrost mode or it won't turn the A/C off even if you press the button. Just turn it to VENT or floor with A/C off. That will ensure the compressor is not kicked in.
1.) The Knock Sensor is actually detecting the pinging
2.) The Sensor is actually retarding the timing
3.) The timing is being retarded as far as it can be (with pinging still present).
another trip to the dealeship and I spoke with one of the service advisors there and according to the service advisor...FINIALLY GM is making aware of the situation and has come back with that they are working on re configuring the computer componment and re writing the software for the Chevy Nox 4cyl. They say they will put a bulletin out sometime in September and I should be notified some time in Sept. So then I was like well can I get this in writing? He said well the GM rep will be notifying you shortly. So I am not going to start Celebrating just yet until the issue is resolved. So then I asked well whats the reason they determined what was wrong?
The mechanic said GM has one guy working on all the cases that they were notified of and that the noise is the "spark coming from the ignition" Now I have NO idea what that means. So was my independant mechanic right along?-as posted in my earlier threads? I know you know your stuff in this do you know what they mean by that (sparks in the ignition?). I am happy that I had pushed this issue, this is a great concern to me.
www.safercar.gov
I am planing to go back and test a V6 but I would like to know before hand if the bigger engine is as problematic as the 4 cyl. Any inputs?
Ah, Exxon. :shades:
If my van holds up I could also wait for GM to work all the kinks out of the small engine.
When you can, read my posts-Kristy8
were pretty similar with our situation
I have posted alot of info. I have filed a complaint
with NHTSA at safercar.gov-that will warrent an investigation
if enough people complain, also make sure you bring this to
tech assist through GM they will give you a lousy
case number-which I might add does nothing but at least
it's documented. Make sure you save and copy all
your paper work from the dealership, depends where you live
but you can look into consumer affairs ( I did )and working with them
right now In hopes they can help me further.
I have taken it in on 3 different occasions, all the Chevrolet dealerships, and they say to just keep the settings where they are. They tell me that no speakers are blown, like I feel they are from the sound of it. I have only taken the volume up to "25" at the highest, with the highest volume being 50. I can't even listen to anything above 20.
Has anybody had these electrical issues? I have had tons of them since I bought the car, but GM can't seem to do anything about it other than re-installing the computer software each time. HELP!!! lol
I am not certain what sound you heard but, the 4cylinder engines have ticking noises that come from engine. That is a normal noise that is a sound you will get from the fuel injectors. If you have any other questions please let me know. Thank you,
Mariah GM Customer Service
When you read about cases like the one as recently as #515, who had the noise go away with 89 octane, further suggest that the pinging clicking knocking sound is "not normal", and for you to tell rockbottom without actually hearing his car, is not good advice if his/her car happens to be one that is pinging badly.
We know your job here is to try to put out fires, but please provide concerned owners with a few more detailed facts since YOU are closer to GM than any of the rest of us, you have greater access to new announcements. You should have said, see the dealer in a week or two to see if they have the new algorithm settings on the ECU in the hopes that that would help.