Getting More Heat for the Winter - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 26 (permalink) Old 09-18-2010, 10:21 PM Thread Starter
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Getting More Heat for the Winter

I've owned a 1993 Spirit, and a 1995 Escort. Both with tiny engines, and both have kept me sweaty in the -30+ below zero range with awesome heat.

This 2006 Cobalt coupe(5spd) does not do a good job at all of keeping me warm in the winter. Even my feet are half frozen most of the time because of the severe lack of heat. When it's warmer out (10 degrees and above), the heat seems to be effective and such, but below that, the heat just isn't hot enough to do it's job.

Are there things I can check to see if something is malfunctioning? Coolant is still fresh and heat is piping hot (because it's 50+ degrees out).

:{)
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post #2 of 26 (permalink) Old 09-21-2010, 06:56 AM
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You could always get heated seats
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post #3 of 26 (permalink) Old 09-21-2010, 07:30 AM
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Pretty sure your heater core is clogged or your fan isn't working properly - mine heats the car up fast and has to be turned off after a while because it's too hot.

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post #4 of 26 (permalink) Old 09-21-2010, 07:35 AM
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Yea, mine can get the car sauna hot fairly quick and that was even when it was about 15 degrees F.



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post #5 of 26 (permalink) Old 09-21-2010, 08:02 AM
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Get it tuned up maybe



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post #6 of 26 (permalink) Old 09-21-2010, 02:32 PM Thread Starter
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Quote:
Originally Posted by MP81 View Post
Pretty sure your heater core is clogged or your fan isn't working properly - mine heats the car up fast and has to be turned off after a while because it's too hot.

Let's see, the fan works perfectly, but the heater core being clogged?


Hmm.............. is there a way to check this without removing the thing?

Also, like I said, the lack of heat happens mainly from 10 degrees F and below, or with a severe windchill, or if I'm just idling in the cold.

:{)
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post #7 of 26 (permalink) Old 09-21-2010, 02:40 PM
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Assuming everything is ok with the car during the winter you could also block off your grille to prevent the excessive cold air from getting in, thereby allowing the radiator to stay warmer. If you do this make sure not to close off the bottom grill in the center of the bumper if you have an automatic. That one is for your transmission, and you need to leave it open.

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post #8 of 26 (permalink) Old 09-21-2010, 03:54 PM
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How to Check if a Heater Core is Bad | eHow.com

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post #9 of 26 (permalink) Old 09-21-2010, 04:39 PM
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dex cool does tend to sludge. try doing a coolant system flush and replacing your coolant with conventional green coolant. 50/50 as always, and be sure to use a flush additive. though i warn you, the process is very messy.

---------- Post added at 07:39 PM ---------- Previous post was at 07:37 PM ----------

Quote:
Originally Posted by Will mpg View Post
Assuming everything is ok with the car during the winter you could also block off your grille to prevent the excessive cold air from getting in, thereby allowing the radiator to stay warmer. If you do this make sure not to close off the bottom grill in the center of the bumper if you have an automatic. That one is for your transmission, and you need to leave it open.
you'll notice truck drivers do this in colder weather, but do not drive it with that on if the coolant temp exceeds 210F. about 250F coolant temp is when your head starts to warp and your gaskets start to fail. gm also offers an engine block warmer to keep the oil and coolant nice and toasty.

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post #10 of 26 (permalink) Old 09-21-2010, 04:42 PM
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^^^^ Does the universal coolant sludge also?

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