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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 5 of 15

#35 of 138 Re: Cooling fan?? [airmn65] by logmgr

Jan 01, 2007 (8:24 pm)

Replying to: airmn65 (Mar 20, 2006 12:48 pm)
you are correct the fan should come on at 195 BUT (and I got this direct from GM) here is what they sent me:
************************************************************
According to the information we have the normal operating temperature of the
2005 Chevrolet Cobalt's 2.2L DOHC 4 CYL Engine is 185-205 degrees.
 
Additionally, the Cobalt is equipped with two fans for engine cooling. The
low speed engine cooling fan engages at 223 degrees; while the high speed
fan engages at 230 degrees. If the engine is operating between 223 and 229
degrees the low speed fan should be in operation, this is considered normal
operation. Above 230 degrees the high speed fan engages to prevent engine
over-heating.
***********************************************************
 
It makes NO sense to me and GM will not budge....I say it WILL shorten both engine and transmission life.
 
GM says overheating does not occure until 265 degrees, I agree with you the fan should come on about 195.

#36 of 138 Re: Cooling fan?? [johnnymurph] by logmgr

Jan 01, 2007 (8:26 pm)

Replying to: johnnymurph (Mar 20, 2006 9:33 pm)
To open the cannister which holds the oil filter you need a 32MM low profile socket.
I have seen them online at 12.99 and Snap on has them for 27.00...and Oreilly auto parts stocks then for 8.99

#37 of 138 Re: Coolant temp.?? [airmn65] by logmgr

Jan 01, 2007 (8:33 pm)

Replying to: airmn65 (May 18, 2006 3:15 pm)
I have an 05 and an 06.
Here is what GM told me in an email about high temps...I do not agree but here it is:
 
***********************************************************
 
According to the information we have the normal operating temperature of the 2005 Chevrolet Cobalt's 2.2L DOHC 4 CYL Engine is 185-205 degrees.
 
Additionally, the Cobalt is equipped with two fans for engine cooling. The low speed engine cooling fan engages at 223 degrees; while the high speed fan engages at 230 degrees. If the engine is operating between 223 and 229 degrees the low speed fan should be in operation, this is considered normal operation. Above 230 degrees the high speed fan engages to prevent engine over-heating.
  
  
My understanding after speaking with a local dealership about the operating temperature of the 2005 Chevrolet Cobalt is that constant temperatures and operation above the 265 degree mark is what would affect the longevity of the engine. Even though the "Normal" operational temperature is listed as 185-205 degrees, the actual can vary based on numerous conditions, weather, speed, load, etc.
 
Once again, the engine running up and into the 220's with the low speed fan in operation is considered to be normal operation. If the engine was running in the mid 220's without the low speed fan in operation I would be concerned, more so about the engine control module than the engine itself. The engine control module controls at what temperatures the fans operate.
 
When the engine has to run with the high speed fan on continuously due to engine temperatures in excess of 265 degrees the longevity of the engine may be affected, that is something your local dealership should check into as soon as possible. By the way, at 265 degrees the engine's overheat indicator will illuminate. This is the point at which the engine may be adversely affected by the temperature.
***********************************************************

#38 of 138 Oil Life Monitor by bporter1

Mar 15, 2007 (10:29 pm)

I recently bought a 2007 Cobalt, and in reading the owners manual on maintenance, it seems GM is relying solely on the oil life monitor to know when to change the oil. I am from the old school every 3k miles, maybe up to 5k miles to change the oil. My question is should I just follow my gut, or take the oil monitor as religion and leave it at that?
Any info would be helpful. Thanks

#39 of 138 Re: Oil Life Monitor [bporter1] by prdm

Mar 16, 2007 (10:01 am)

Replying to: bporter1 (Mar 15, 2007 10:29 pm)
It's not like the oil monitor is just hooked up to the odometer. It measures all sorts of parameters such as duration of run, ambient temperature, coolant temperature, speeds hit, etc. giving a much more accurate picture of stresses on the oil. That said, it's not a lot of money involved to do it either way.

#40 of 138 Oil Life Monitor by bporter1

Mar 16, 2007 (6:11 pm)

I did not know that it takes into account all of that info.
Thanks for letting me know.

#42 of 138 CHANGE SPARK PLUGS by logmgr

May 20, 2007 (3:03 pm)

Does anyone here know how to change the plugs on an 06 Cobalt with the 2.2 Ecotec engine ?
Mine is at 93,000 and it will soon be time to change them.
I know the plugs are under the silver cover with the ignition module on it and that it needs to come off; but what then ? Are there any tricks/tips ?

#43 of 138 INSTALLATION ISSUES by missfr75

May 31, 2007 (8:05 am)

I installed a new steering column for my 2006 cobalt. after installation the vehicle lights and radio will come on but the car wont turn over. it shows that it is in lock position. how do i unlock it so that the car will start with the new column and key?

#44 of 138 Re: INSTALLATION ISSUES [missfr75] by okko1

Jun 09, 2007 (9:14 am)

Replying to: missfr75 (May 31, 2007 8:05 am)
are you using the original key. if not you may have to take the car to the dealer ship to get key program

Messages Page 5 of 15

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