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Chevrolet Cobalt General Care & Maintenance

138 messages,  Last post on Sep 12, 2010 at 4:59 PM

You are in the Chevrolet Cobalt Forum.

What is this discussion about? Chevrolet Cobalt, Oil, Paint, Coupe, Sedan

Messages Page 10 of 14

#89 of 138 oil by harrisblack

Oct 07, 2007 (12:15 pm)

The manual I am talking about is the one that comes with the car. On page 289 it says Do Not Use SAE 10w40- SAE 20w50 or any other viscosity grade oil not recommended which should include 10w30.
 
We live in New Orleans and this Jan I will change to synthetic oil 5w30. The car still has factory oil and only 1200 miles.

#90 of 138 Paint Chipping by harrisblack

Oct 13, 2007 (11:57 am)

Is anybody else having problems with the screw ends that go thru the door chipping the paint on the front posts?

#91 of 138 Major RPM flutter 2007 2.2L 4T45E by jtk152

Oct 21, 2007 (5:18 am)

Anyone else experiencing a flutter or RPM bounce when the transaxle shifts into 4th during moderate acceleration? This is on my 2007 2.2L, 4T45E equipped Cobalt. It seems to only happen once fully warmed and I'm not positive if it's happening on the 3-4 upshift or during torque converter lockup in 4th. There is no check engine light and other than that, it runs flawlessly and has been perfect. I have heard of one or two other 2007 owners with the same concern. No issue was found by their respective dealership service depts. I'm also not exactly sure if this is a throttle by wire problem, transmission problem, etc.. Basically the tach will bounce up/down about 500RPMs at about half second intervals during what feels like the 3-4 shift. You can hear it and feel it as well.
 
Joel

#92 of 138 Re: Major RPM flutter 2007 2.2L 4T45E [jtk152] by cmhj2000

Oct 21, 2007 (9:46 am)

Replying to: jtk152 (Oct 21, 2007 5:18 am)
Hey Joel, good to see you over here.
 
Your concern/issue is one I've not seen or heard yet. However, I'll put the word out.

#93 of 138 Tires by grosloup

Oct 22, 2007 (4:31 am)

I always drove S.U.V.s and Vans in the past and I never had snow tires installed on them. I drove all year with all season tires. Now that I purchased a Cobalt I wonder if I should put snow tires on it. It's smaller and lighter compare to a S.U.V. or Van and I figure the weight of the car could make a difference in the snow.

#94 of 138 Re: Tires [grosloup] by jtk152

Oct 22, 2007 (8:17 am)

Replying to: grosloup (Oct 22, 2007 4:31 am)
You won't know until you try your Cobalt in your conditions. My experience with smaller FWD cars in Buffalo NY winters is, they are pretty good in the snow with OEM style tires. Nothing goes good on ice and not much will help you if you bottom out in deep snow.
 
Joel

#96 of 138 Transmission Fluid by harrisblack

Oct 22, 2007 (11:35 am)

If you can go 50,000 to 100,000 miles between transmission fluid changes, are they using regular or synthetic transmission fluid? And if you have to, can you use synthetic transmission fluid?

#97 of 138 Re: Transmission Fluid [harrisblack] by jtk152

Oct 22, 2007 (11:52 am)

Replying to: harrisblack (Oct 22, 2007 11:35 am)
Dexron VI ATF is pretty much used across the GM line now. It's advantages are the capability of extended drains, so it has synthetic components in it. If you did a pan drop, cleaning and filter change somewhere before 50Kmi, you'd be good to go until 100Kmi or beyond. I wouldn't let my 4T45E go to 100Kmi if I was keeping the vehicle long term. These transaxles are decent ones, but none of them are bullet proof.
 
Joel

#98 of 138 I need some help... by aliciaa

Oct 22, 2007 (3:14 pm)

Replying to: prdm (Mar 20, 2006 11:18 am)
Hello Everyone...
I drive an 06 Chev Cobalt SS, Although it is not supercharged...
I am wondering what RPMs it should be running at when I'm driving down the highway...
can anyone help me out??

Messages Page 10 of 14

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