1-2 shift grinding status
- Thread starter klystron
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klystron
Banned
I really have to laugh when people on this board think an acceptable solution to our grinding problem is to put fancy oil in the transmission. That's not even acceptable on 150,000 mile cars you are trying to get a few thousand more miles out of before the big repair bill.... but it's still often used as a remedy in that case.
For some reason my lawyer has not filed the my complaint yet I spoke with him last week and they are working on the complaint. I cannot wait for a resolution on this matter.
For some reason my lawyer has not filed the my complaint yet I spoke with him last week and they are working on the complaint. I cannot wait for a resolution on this matter.
I went with fancy oil since it helps to thicken the oil in the transmission. If I had more time I would have went and did a drain and fill with the Royal Purple oil which is considerably thicker.
I'm only looking for thicker oil since it seems that the problem is caused by overheated oil that thins down too much, or the oil was too thin to begin with.
Also, when the transmission has less fluid, it seems that it gets worse. Now keep in mind this is what seems to be causing my grind and may be way different than what you were experiencing.
I'm only looking for thicker oil since it seems that the problem is caused by overheated oil that thins down too much, or the oil was too thin to begin with.
Also, when the transmission has less fluid, it seems that it gets worse. Now keep in mind this is what seems to be causing my grind and may be way different than what you were experiencing.
klystron
Banned
I have a '13. It has had this problem from day 1. I have had three transmissions in the car, three shifters, two flywheels, three clutches, etc. You should not even have to change the oil to resolve this problem. If GM picked the wrong oil then that's their problem. When the car is brand new and in spec this problem should not occur unless there is a design problem. Why you guys love this car so much as to defend this design problem as repairable with different oil is beyond me.
Foxbox
New member
And I really have to laugh (unfortunately) when you state you've been through X amount of parts and still have an issue.
There is no clear cut fix. This is fact.
Another fact is that adding thicker gear oil to the transmission helps with the grinding issue. Key word being "helps", it doesn't fix it.
My personal car doesn't grind every time I shift quickly into 2nd. It did however while the stock transmission fluid was in the car.
I don't see the point in taking the car to the dealer over and over. The car has a 100k powertrain warranty, once a fix is determined I'll gladly take mine in. Until then I can deal with how it is.
Isambard
New member
This. I haven't done the oil change either though. But sitting through multiple trans swaps? Ain't nobody got time fo' dat!
klystron
Banned
If you put more oil in it there will be more fumes to vent. I gots bronchitis and can't take it.
They may fix it someday and they may not. In the meantime I will pursue this case under my state's lemon law and hopefully get another (non-GM) vehicle after this is settled.
I'm not even close to experiencing the problems that you were having with the grind.
When I first got the car, it ground 1-2 if I shifted above 5900rpm. Right before my car went in for an oil change it would grind on anything more than 5200rpm and they topped up the transmission oil and after I took it out then it would only grind after 5900rpm
Maybe the RS transmission is less prone to grind or maybe something is broke with the car. I'm going to bet that if we had real mechanics, instead of "the computer says your car is fine" mechanics, the problem would be discovered and fixed.
I always self diagnosis the problems with my car then tell them what the symptoms are and if they don't come to a knowledgeable conclusion then I'll refuse to let them service my car. I'm not saying that I always know the problem but I have a good idea of what it might be and if they come to a different issue I'll listen and see if that is the issue. But if I go in for one thing and they say that it is fine or just throw parts at it, I'm not going there again.
klystron
Banned
I typically agree, however this is a brand new car under warranty and I expect GM to make it right. Before the work was first done on the car around 2200 miles it kept getting progressively worse. The same thing has happened as the car has gotten more mileage since they stopped working on it. I have had the grind as low as 2500 rpm (but on a very steep hill.)
sx sonic
New member
I've got all solid mounts and bushings. The shifting feels better at the stick but the actual trans actions feel about the same. The trans still gets balky in a fast high RPM 1-2 shift which is the same as it was with a fully synthetic 75w-90 oil. Prior to that I had the grind.
I share the same sentiment. Yea the issue shouldn't exist but it does and atleast to me It's not something I'm willing to get rid of the car for. I can live with adjusting my driving habits around 1 shift, I can live with a DIY remedy that works and the only upside of this issue is that I can get a brand new fresh trans that's updated at 80-100k miles.
I foresee a fix being released, be it a new trans or linkage, and thru the efforts of ppl like Klyrston it will likely happen sooner than later. There's alot of complaints so It's only a matter of time.
I love my sonic. I do. Now that I got that out of the way...
I totally see where this guy is coming from. I have never... NEVER owned a car that would grind when you shift in the upper RPM's quickly. Not my cavalier... my mustang... my cobalt ss... my 1500 work truck... all sticks, no grinding whatsoever. Out of the many vehicles I have driven, the only ones that grind when shifting like this are...
1. Cars that have a problem
2. My fiances Cruze Eco and my Sonic RS.....
The Eco has 62k on it and will grind if you shift fast 1st to 2nd... same with 3rd.. so it doesn't go away.
The problem is that a vehicle when purchased should function correctly. I should be able to run the car into the upper RPMs, and shift quickly, and proceed with my acceleration without the car grinding. I don't see how people can be cool with their vehicle doing this, as this is not how a manual transmission should function. You all spent good money on your car just as I did..... We know the problem is very.... VERY common. GM sure as hell is aware of it... Yet there are no fixes presented besides, "Swap the tranny, wait for the grind again."
I absolutely do not think this guy is out of line, or that his frustration is unjustified. You purchase a brand new car off the lot expecting to get a perfect running car with no defects. The fiesta, focus, dart, mazda 3, 13 v6 camaro, 13 v6 mustang, and the veloster I ALL DROVE before making my decision to buy a sonic RS, did NOT grind at all in any shift. All allowed for red line shifts, all allowed for quick shifts, no problems at all.
I, for one, am very angry that these cars have a very notorious shifting problem. It will for sure influence my next car purchase as out of the 3 new Chevrolets I have driven, 2 of them grind.
Anyways, as for a "fix" I found slowing the 1st- 2nd shift and the 2nd - 3rd shift a tad makes the grind lessened or non existent. Otherwise slightly riding the clutch in between the shift seems to make the grind go away...
I totally see where this guy is coming from. I have never... NEVER owned a car that would grind when you shift in the upper RPM's quickly. Not my cavalier... my mustang... my cobalt ss... my 1500 work truck... all sticks, no grinding whatsoever. Out of the many vehicles I have driven, the only ones that grind when shifting like this are...
1. Cars that have a problem
2. My fiances Cruze Eco and my Sonic RS.....
The Eco has 62k on it and will grind if you shift fast 1st to 2nd... same with 3rd.. so it doesn't go away.
The problem is that a vehicle when purchased should function correctly. I should be able to run the car into the upper RPMs, and shift quickly, and proceed with my acceleration without the car grinding. I don't see how people can be cool with their vehicle doing this, as this is not how a manual transmission should function. You all spent good money on your car just as I did..... We know the problem is very.... VERY common. GM sure as hell is aware of it... Yet there are no fixes presented besides, "Swap the tranny, wait for the grind again."
I absolutely do not think this guy is out of line, or that his frustration is unjustified. You purchase a brand new car off the lot expecting to get a perfect running car with no defects. The fiesta, focus, dart, mazda 3, 13 v6 camaro, 13 v6 mustang, and the veloster I ALL DROVE before making my decision to buy a sonic RS, did NOT grind at all in any shift. All allowed for red line shifts, all allowed for quick shifts, no problems at all.
I, for one, am very angry that these cars have a very notorious shifting problem. It will for sure influence my next car purchase as out of the 3 new Chevrolets I have driven, 2 of them grind.
Anyways, as for a "fix" I found slowing the 1st- 2nd shift and the 2nd - 3rd shift a tad makes the grind lessened or non existent. Otherwise slightly riding the clutch in between the shift seems to make the grind go away...
As to the question, " Will the grind make me want to purchase a different car?"
It puts a very large frowny face on the car for me... It's kind of embarrassing if it happens in front of friends or people who ride with me that a new car grinds while their old 87 corolla doesn't... I love the car too much as it is now.... but my next purchase I will for sure consider other alternatives much more closely...
It puts a very large frowny face on the car for me... It's kind of embarrassing if it happens in front of friends or people who ride with me that a new car grinds while their old 87 corolla doesn't... I love the car too much as it is now.... but my next purchase I will for sure consider other alternatives much more closely...
sx sonic
New member
Don't get me wrong getting a manual transmission that is 95% ancient and proven mechanics wrong is disheartening. Not being able to find a fix at the engineer level after a couple years is worse; this trans has been out overseas for a few years prior to the cruze/sonic.
And still worse is there's not even a remedy, let alone a fix and many dealers don't even know how to handle the complaints; I was told they'd need to pull and investigate the trans! Yea because any dealer still does that and like I want exploratory surgery on my car (they also said they couldn't diagnose with my exhaust. As if that's related :rollseyes
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It's a gross F-up on GMs part no doubt. I'll make do with the other desirable attributes and be thankful America still gets a manual trans :/. Although I'd gladly trade OnStar, TPMS, STM/TC, dual mass flywheels, and soft suspension for a car that is fully composed in the aspects that make it a car. Call it function over form, It's rare haha.
And still worse is there's not even a remedy, let alone a fix and many dealers don't even know how to handle the complaints; I was told they'd need to pull and investigate the trans! Yea because any dealer still does that and like I want exploratory surgery on my car (they also said they couldn't diagnose with my exhaust. As if that's related :rollseyes
.It's a gross F-up on GMs part no doubt. I'll make do with the other desirable attributes and be thankful America still gets a manual trans :/. Although I'd gladly trade OnStar, TPMS, STM/TC, dual mass flywheels, and soft suspension for a car that is fully composed in the aspects that make it a car. Call it function over form, It's rare haha.
Macehammer
New member
You mean form follows function. Maybe they stopped teaching engineers this. After all, we long ago gave up teaching people how to think, and now just teach them what to think...
dvn
New member
Why? They can't fix it!
dkennedy1989
Member
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