Hard? Starting in Very Cold Weather - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 16 (permalink) Old 12-14-2008, 07:51 PM Thread Starter
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Hard? Starting in Very Cold Weather

Last night, the temps here dropped into the 0 and -teens. With wind chill, it was -40 today. I expected to have SOME issue firing up the Commander this morning, and was surprised how quickly it fired up. BUT, the catch is that it made some strange noises that sounded awful - like a metal on metal screeching. It went away after about 20 seconds, but was disturbing while it was going on. Also, my tire pressure dropped about 8 pounds in each tire. Can anyone from the colder climates relate to this?

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post #2 of 16 (permalink) Old 12-14-2008, 07:59 PM
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The tire pressue goes down in colder temps. I always have to add air in my tires, at the begining of winter.

With the temps like the -40, I would be using a good synthetic oil. The have better flow chartaristics in cold temps. I put Penzoil Platinum 5w-30 in my commadner and have been very happy with it so far, and I'm in Michigan.

Last edited by Motorcity; 12-14-2008 at 11:02 PM.
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post #3 of 16 (permalink) Old 12-14-2008, 08:05 PM
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Polar, I heard the same noises this morning, sounded like the belts spinning up in sub-zero temps. I know my tires are lower too, need to add some air tomorrow.

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post #4 of 16 (permalink) Old 12-14-2008, 08:26 PM
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Quote:
Originally Posted by PolarBZ View Post
Last night, the temps here dropped into the 0 and -teens. With wind chill, it was -40 today. I expected to have SOME issue firing up the Commander this morning, and was surprised how quickly it fired up. BUT, the catch is that it made some strange noises that sounded awful - like a metal on metal screeching. It went away after about 20 seconds, but was disturbing while it was going on. Also, my tire pressure dropped about 8 pounds in each tire. Can anyone from the colder climates relate to this?
I'm in northern B.C., Canada, and our temps have dropped to -30C at night with wind chills in excess of -40C. Heard the same sounds the first two mornings of this week until I finally found the block heater. The cord is tied to your dipstick tube (if you have one.) If not, I would buy a magnetic oil pan heater to keep that oil warm until you can get a block heater installed. Just my experience living in a winter wonderland all my life!
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post #5 of 16 (permalink) Old 12-14-2008, 08:58 PM Thread Starter
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Originally Posted by discolover View Post
I'm in northern B.C., Canada, and our temps have dropped to -30C at night with wind chills in excess of -40C. Heard the same sounds the first two mornings of this week until I finally found the block heater. The cord is tied to your dipstick tube (if you have one.) If not, I would buy a magnetic oil pan heater to keep that oil warm until you can get a block heater installed. Just my experience living in a winter wonderland all my life!
Thanks for the heads up. I'm fairly certain I HAVE a block heater installed from the factory and I will definitely go hook it up tonight to keep the Commander happy in the mornings.

Any thoughts on what the horrible sounds ARE? Specifically? Any mechanically inclined people have an idea?

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post #6 of 16 (permalink) Old 12-14-2008, 11:21 PM
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\gə-ˈrzh, -ˈrj; Canada also -ˈrazh, -ˈraj; British usually ˈga-(ˌ)rzh, -(ˌ)rj, -rij\
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French, act of docking, garage, from garer to dock, from Middle French garrer, probably ultimately from Old Norse vara to beware, take care; akin to Old High German biwarōn to protect — more at ware

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post #7 of 16 (permalink) Old 12-15-2008, 01:17 AM
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That's where mine resides... it's a chilly 37F right now... which is bizarre being as it was almost 80F this afternoon!
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post #8 of 16 (permalink) Old 12-15-2008, 01:56 AM
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Quote:
Originally Posted by PolarBZ View Post
Last night, the temps here dropped into the 0 and -teens. With wind chill, it was -40 today. I expected to have SOME issue firing up the Commander this morning, and was surprised how quickly it fired up. BUT, the catch is that it made some strange noises that sounded awful - like a metal on metal screeching. It went away after about 20 seconds, but was disturbing while it was going on. Also, my tire pressure dropped about 8 pounds in each tire. Can anyone from the colder climates relate to this?
Welcome to the North! Yeah, pressure drop in the tires is normal. It is usually just from the condensing of air, but occasionally the cold can reveal leaks, but normally once you add air you are good. As far as the screeching, my guess it is the power steering pump. Always a wonderful sound ;-)
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post #9 of 16 (permalink) Old 12-15-2008, 02:14 AM
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it dropped to zero here today too. Had no problems with my commander, but i did add air in the tires.
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post #10 of 16 (permalink) Old 12-15-2008, 07:15 AM
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The most common sound is the power steering pump cavitating. And, as you noted, the oil within began to circulate within about 30 seconds. This is normal for just about any vehicle. I swear, even the owners manual mentioned this potental but I guess I'll have to re-read it again to find the page.
Regardless, fear not, all is well.
As far as tire pressure, keep in mind that they lose 1lb. pressure for every 7 degree drop in ambient temp.

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