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Comments
For the noise, these engines are a little loud because of the direct injection. I noticed using Shell V-Power gas helps with both noise and mileage. Also, what oil are you using? What are your oil change intervals? These engines are hard on oil and if you are using conventional oil and only changing when the oil life monitor says you're asking for trouble.
I apologize that you are experiencing a concern with your vehicle. Have you taken the vehicle to another dealership for a second opinion? Can you please email me the VIN and current mileage? You can get my email by clicking on gmcustsvc. Thank you,
Mariah GM Customer Service
The stalling issue scared me a couple of times. If I accelerated just as the car would start to shudder, the car would almost stall, then violently lurch forward...and almost stall again...usually when I was in the middle of an intersection.
I went to my dealer and they said that there was not any bulletins, or any new tranny calibrations available.
I've had to turn off ECO mode in order to feel safe in this car.
My father was going to by an Equinox, but this stalling issue has caused him to put off buying the car for a while.
Mike
I am very pleased after 10 months and 11,000 miles.
Anyone else having this trouble? I feel like I just need a while new cpu for the car.
Gas mileage still remains below 19mpg since I had the oil changed and service done. Representatives from CS and the "specialist" I'm supposed to have assigned to me as yet to call, and continues to cancel my claim stating that "I never answered the phone"
Any GM people out there who would be able to offer a helping hand, it would be greatly appreciated.
I've read reviews of other cars with electric steering assist that complain about it being "notchy". I guess that's how I would describe the Equinox steering, but only at the centered position and only under certain conditions.
No problem. Yes, please let me know how everything goes. Thank you,
Mariah GM Customer Service
Have you found anything more from your dealer on this 'sticky' steering problem?
Have experienced sticky power steering. Ohio turnpike on cold winter evenings returning from son’s home. Have not noticed this in warm weather.
Money well spent of course but just curious.
So far my Nox is working fine but it's only 3 months old.
This is beginning to sound like Toyota's way to do business -coverup problems. This is why I decided not to buy another Toyota.
There are ramifications when naivety interferes with common sense. And we all should know by now that bad news sells best and the media chases the almighty dollar.
I hope you have good luck with your new Chev, but if you chose it thinking that Chev makes a better product or was going to look after you better than Toyota ever would in event of an issue, then that might have been a mistake.
It does seem odd that in testing, these issues didn't surface under GM's R&D efforts.
There are those of us out there who feel that government bailouts are not (always) the answer for a company to get back on track. It is like if a 14 year old child wants to replace his beat up and abused bike, and you suggest he cut lawns and earn the replacement bike, he will take far better care of it than if it is just given to him.
My neighbor, so impressed with mine, just bought an LS 4 cyl and I listen to her start up and drive away each morning and there is no noticeable "knocking, ticking, dieseling" or anything else that I would term noisy. Maybe there is a problem with some Nox 4 bangers, but so far I haven't personally been able to witness it.
I would like to compare side by side with someone who has this problem.
It very well could be that a person who has this problem may listen to my Nox and ask, "you can't hear that, how can you stand it", but there's not a sound in my engine that doesn't sound perfectly normal to me.
My only issues have been resolved with the recalls, the height of the antenna, and the car wanting to stall. The stalling issue seems to have gone away ever since it took the car on a long drive up north.
inot this matter more, so I am dropping off my car on the 12th and will be there until the problem is resolved or fixed, it happens at 30-40mph and yes it's faint BUT it's there and the master mechanic seems to think that the problem may actually be exhaust related? also the GM rep thought it maybe torque related? also the mechanic hooked my car up to his dell and shut down the codes to see if the sound was still there and it was. so this maybe casue for an open recall WITH all
2010 noxs I am pushing this matter until I am satisfied. I have spoken with the attorney general office and they advised me to stay with this dealership for my case.
we spent over 4hrs taking my car out and listening. My problem started at 5,000
miles and I now have 9959 miles and it's louder and worse. I had the rep in the car and she orginially thought well it's the just car, WHAT??? NO sorry GM is going to FIX and resove this issue I am taking this all the way until I am completely satisfied.
unfortunately according to an advisor there needs to be enough complaints to come in for GM to reconfigure the system and make an open recall. Now when we were driving today the GM rep thought well it;s the torque componment, after an hr later and hooking the car up to the master mechanics dell computer and shutting down the code the car still made this secondary noise. The master mechanic is
thinking that it maybe the exhaust? So I have another appointment next week on the 12th...now I have been googling this andI have found several others across the country that is experiencing the same thing. There is a bulletin for the fuel pressure regulator BUT disregard that that is normal sound your car will make at idle and so fourth. So if are experiencing or having concerns DONOT let them tell you it's the fuel pressure regulator, it's NOT it's something deeper....the issue is still at hand and I am also dealing with the attorney general office at this point. GM needs to go back to the drawing board and find out what is going on and fix the problem, if you wait to long it will not be covered under your states lemon law. If your experiencing this secondary noise you need to make some noise to your dealership and stay on top of this. The more complaints the more apt GM will make this an issue and look into this matter and hopefully make our noxs safe...I am not saying it isn't? BUT I am not saying it is either.....
I will post results after the 12th
my contact info for gm is 1 866 790 5600x 32689-Nick
I am going to email you....I am not really sure exactly what problems you experienced with your nox but you mentioned the tranny??? Maybe my issue is somehow related? I have a 2010 it will be a yr old this November, around 5,000 miles I was hearing a secondary noise coming from the engine when I accelerated, especially up hills and at 30-40 mphs, contacted GM and the dealership with this issue, no results...case closed, still not satisfied with their answer "oh it's the fuel pressure regulator there is nothing we can do" it's just the way it is..ok a few months go by I am at 9, 959...problem getting louder and more noticeable. brought it in agian with some regular maintenance, GM rep happened to be there...looked into the problem, again, "oh that's the car it's normal" HUM>>>I said to the rep did you hear the noise? "no" then how can you tell me this is normal..I requested for her to return to the dealership and actually come and drive it with me. We all hop in the car me, the manger of the service station, the GM rep and we are driving around and I am hearing alot of hoopla from the gm rep well it sounds like the torque componment, this is normal,...NORMAL you call this secondary engine noise NORMAL??? NO I don't think so..I said well if your not willing to fix this issue I will have to got hrough arbitration with the Attorney Generals Office, ok she says lets write up a repair work order, Ok we head back to the dealership this time we have the master mechanic from the service station hook up this little dell computer to my car and he turns off the code for the torque componment, were driving around and pull inot a parking lot and the mechanic gets in the drivers seat and start to rev up the car as were stopped and low behold there is the noise, so ok it's NOT the torque componment? the mechanic seems to believe that it actually maybe an issue with the exhaust????-but why would the exhaust noise only happen when accelerating? I am definately no mechanic and I sure hope this matter is resolved
soon, I have an open case now with GM and needless to say the GM rep was really no help at all. It feels like they want to sweep this problem under their rug.
what happened with you? what were your results?
I will be posting my results sometime after the 12th I have a scheduled drop off date
at that time.
you will see that I am having that same secondary noise
GM rep and service station are in the process........
please read all of my posts
they are well to say at the least interesting
on going issues with GM, not a happy customer
kristy8
Whether I thought Chevy was a better product or not was not the issue, I just lost faith that Toyota had any credibility at the time of my purchase. I decided to go back to my roots, as a Chvey was my first car ever, and buy American. I know I'm taking a chance with a bailed company but they seem to be doing pretty well so far.
I remain concerned with the posters comments here about the new engine despite your opinion. I do realize it's too easy to complain here with out any credibility but I will watch this. Sorry if you don't see my concern.
Can you please email me your service request number? You can get my email by clicking on gmcustsvc. Thank you,
Mariah GM Customer Service
I live in Canada, so we do not have any "lemon-laws" that we can use. At least, none that I know of.
I was one of the first people to have the center-console problem...and delt with many GM engineers and techs. They even sent an engineer from the Oshawa Ontario car plant to look at my car for a week (got a loaner). It took some time, but they finally figured out what was wrong. (It took 3 new center consoles, 2 new radios, re-programming the unit 5 times...)
My experience with GM customer service was really good. It took a while, and I had to get firm a couple of times, but they worked everything out.
I hope you can get your Nox running the way you want it.
http://www.camvap.ca/eng/camvap_for_me.htm
yeah......... I know about the direct fuel "normal" sound I have read the bulletin and it is considered normal BUT the secondary noise that I get is definately not. mY NOXS was built in Canada. Not sure if that has anything to do but I am surpose to get it looked at the 12th the mater mechanic seems to think that It maybe the exhaust, My noise is actually becoming more frequent and now it starting at or around 20mph. Thanks I do hope that my car comes out ok.
"mY NOXS was built in Canada. Not sure if that has anything to do but I am surpose to get it looked at the"
Just an fyi, the quality control of vehicles manufactured in Canada, have among the highest ratings of any country in the world. So not too sure what you meant by the shot. But, if GM were to source an engine outside of Canada, ship it to Canada to be installed in a vehicle mfgd in Cda, then we have no control over that.
I have heard that the engine is built in Cda tho, on the Nox. But that doesn't mean anything per se if GM has an engineering issue not sorted with the ailments some owners are having. For all we know it could be the extra ethanol content in our gas, or any other of numerous filler and junk they allow over here in our gas, that they don't in Europe. Did you know that from around the late 90's to mid 00's mfgrs had to increase their emissions dollar content in all cars sold and driven in NA by as much as 3500 hundred bucks in certain vehicles, just so they would pass our emission standards on our poor quality gas. I am not in touch with the stats as much these days, but i suspect that because we are seeing more DI engines on these shores, we must have had to clean up our gas in order to burn it in these DI engines. But there are still unscrupulous gas stn owners who dump all kinds of cr&p in the tanks as fill to increase their bottom line. Dirty pool? You betcha.
I would at least start fueling at different locations to see if that helps your cases at all. It will take some time of course to run the new gas through the system.
DETROIT, Mich. – GM’s Ecotec 2.4L I-4 has been awarded Ward’s Auto World magazine’s 2010 “10 Best Engines” for North America. The direct injected engine with variable valve timing helps deliver segment-best highway fuel economy in GM’s popular new crossovers, the Chevrolet Equinox and GMC Terrain. The engine also debuts in the all-new Buick LaCrosse and Regal sedans next year.
Ward’s reviewed 34 engines from 13 automakers in the competition. Winners were chosen based on several factors, including power, noise, vibration and harshness (NVH), fuel efficiency, new technology and comparative data for similar engines.
The new Ecotec 2.4L engine includes technology that provides a number of benefits. “Direct injection (DI) was designed into the 2.4L to boost fuel efficiency and for refined power,” said Chris Meagher, chief engineer for Ecotec engines. “The VVT (variable valve timing) system is tuned to work in tandem with direct injection to achieve optimum fuel economy and lower emissions. The engine achieves a respectable 182 horsepower (136 kW) and 172 lb-ft (233 Nm) of torque, which makes for a pleasing customer driving experience.”
With direct injection, fuel is sprayed directly into the engine cylinder, where it is mixed with air. As the fuel vaporizes in the cylinder, the air and fuel mixture is cooled. This enables the use of a higher compression ratio, which improves engine efficiency and performance. Direct injection also reduces cold-start hydrocarbon emissions by up to 25 percent.
The Ecotec 2.4L engine is an all-aluminum, dual overhead cam, four-valve engine with forged steel connecting rods and oil spray cooling for reduced friction and noise. The engine is built at GM’s Spring Hill powertrain plant in Tennessee. In all models, the engine is mated to a highly efficient six-speed automatic transmission.
GM's 2.4L ECOTEC SIDI Wins Ward's 10 Best
One GM engine makes the elite engine list for 2010.
www.gminsidenews.com
December 9, 2009
By: Nick Saporito
Today Ward's Auto released their 2010 Ten Best engine award. The annual list is always made up of the best ten engines throughout the auto industry and one of General Motors newest engines made the list this year: the 2.4L ECOTEC SIDI.
The engine is not technically all-new, however it is a heavily revised ECOTEC that debuted in the 2010 Chevrolet Equinox. The engine gained popularity quickly due to the Equinox's and GMC Terrain's headline 32 MPG highway rating, which makes the two utes best-in-class in terms of fuel economy by a wide margin.
In addition to direct fuel injection and variable valve timing, the Ecotec 2.4L engine is an all-aluminum, dual overhead cam, four-valve engine with forged steel connecting rods and oil spray cooling for reduced friction and noise. In all models, the engine is mated to a six-speed automatic transmission.
The 2.4L is the only GM engine to make the list this year, however cross-town rival Ford Motor Company made the list with two of their new engines as well.
Ward's 2010 Best Engines List:
* 2.0L TFSI Turbocharged DOHC I-4 (Audi A4)
* 3.0L TFSI Supercharged DOHC V-6 (Audi S4)
* 3.0L DOHC I-6 Turbodiesel (BMW 335d)
* 2.5L DOHC I-4 Hybrid (Ford Fusion Hybrid)
* 3.5L EcoBoost Turbocharged DOHC V-6 (Ford Taurus SHO)
* 2.4L Ecotec DOHC I-4 (Chevrolet Equinox)
* 4.6L Tau DOHC V-8 (Hyundai Genesis)
* 2.5L Turbocharged DOHC H-4 (Subaru Legacy 2.5GT)
* 1.8L DOHC I-4 Hybrid (Toyota Prius)
* 2.0L SOHC I-4 Turbodiesel (Volkswagen Jetta SportWagen TDI)
And anyone can copy paste...
You mention a higher CR. So that is a clue right there. They state the engine will run on 87 octane (in the interest of not losing customers who rightly refuse to invest in the premium that hi-test gas is, in common place cars like the Nox) but maybe that is where they have screwed up. A lot of the knocking symptoms owners have described here sounded to me like a pre-ignition issue, which is what hi-test gas is designed to not allow in higher than average combustion chambers. (hi-test gas ignites more slowly than regular gas, a very very common misconception among the driving public) (fuel ignites more quickly when under greater pressure - a prime example of this is the basis for how diesel ignites. As many of you may realize a diesel powered car does not use sparkplugs and coils to provide a spark to ignite the fuel. That is why diesels have extremely high compression ratios compared to gas engines.
And many other engines have won the Wards list many years in a row. Numerous variations on Nissan's original 3 litre V6 makes the list almost every year for the past 10. And I believe GM's cast iron block 3800 V6 so popular in Bonnevilles etc also is on the list. And this, just from memory. I haven't looked in a few years.
The Nox being assembled in Canada was a selling point for me, since the previous 2 vehicles I have owned that were assembled in Canada were gems with no problems.
The high CR is a trait of direct injection for better fuel economy. You seem to have a lot of general info but never relate to any actual personal experience with the engine. All I know is my i-4 is running smooth for 3 months now on 87 octane being the common place car it is.
I know why you c/p, my biggest thing was you claiming "a lot" of my info was incorrect which it was not. You split hairs, and even supported Cdn quality. And you made no retraction. But whatever..
Unlike some on these forums i do NOT talk thru my hat. (but i am not suggesting you have)
But the info i have given here will be helpful to those who are having trouble with their car. Why would I go into great detail of mechanics when many would prefer a few basics that they can then investigate on their own and ask their own mechanic about? Armed with some of the info I provided here already, will tell their mechanic that they are not the average ignorant customer with a problem but one who has some knowledge of the workings of their engine.
And whether you agree or not, ruling out gas quality as a possibility was good advice I could go on about software programming of engine management, anti-knock sensors etc etc but it has already been touched upon previously. Gas wasn't.
Even the most highly rated engine will have problems and it is the problems that people are here to discuss.
tidester, host
SUVs and Smart Shopper
No kidding. One poster here thought her problem may be because it was built in Canada. Providing information on that is not acceptable here?
there is an actual problem with my car and many others, whether or not the car was built in USA or Canada or wherever the case maybe...there is an issue and simply making a statement " my car was built in Canada" DOES not imply a shot in any form, read my issue before you start throwing stones.
I am canadian!
providing that my car was also built in Canda. I do know the steps that were taken to build the nox.
...."mY NOXS was built in Canada. Not sure if that has anything to do but I am surpose to get it looked at the 12th the mater mechanic seems to think that It maybe the exhaust,...."
With your sloppy typing it's not hard to maybe misinterpret your meaning. Try proof reading your posts before sending.