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| cold weather startup noise http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=48521 |
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| Author: | JeepinJarhead03 [ Wed Dec 16, 2009 9:15 am ] |
| Post subject: | cold weather startup noise |
You guys jeep make a VRuummmP sound (like a quick vacuum suck almost like a raspberry fart) when ya start it up during cold weather? Hadn't noticed it until it turned colder this year and I've been so busy I have hardly driven anywhere other than to the gas station or droppin someone off at the campus much less turned a wrench 
im feigning for somethin to work on 
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| Author: | FreedomKJ [ Wed Dec 16, 2009 5:41 pm ] |
| Post subject: | |
It's the power steering pump. Jeep released a TSB in 2004 saying to drain and refill with ATF+4 to stop the cold weather noise. |
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| Author: | Jeepjeepster [ Wed Dec 16, 2009 8:21 pm ] |
| Post subject: | |
Filled mine with ATF+4.. Still makes the noise when it gets down in the 20's and teens. Kinda hard to get all of the old fluid out though.. |
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| Author: | JeepinJarhead03 [ Wed Dec 16, 2009 8:36 pm ] |
| Post subject: | |
makes sense, i thought it was my PS pump draggin or somethin, it's been actin weird again like it's got some air in it first of the summer i drained what i could out of the resovoir and put some good stuff in it and it quieted down alot, guess it's time to do it again thanks for the FYI |
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| Author: | tjkj2002 [ Wed Dec 16, 2009 8:47 pm ] |
| Post subject: | |
Check the pressure hose for the PS system,it likes to leak,not a bad leak but enough to let small amounts of air in that makes the pump noisy in colder temps. |
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| Author: | JeepinJarhead03 [ Wed Dec 16, 2009 9:21 pm ] |
| Post subject: | |
Top of the list! I think you told me to do that last time and I forgot 
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| Author: | Wasatch15 [ Fri Dec 18, 2009 9:14 am ] |
| Post subject: | |
That sounds like it could be the surpentine belt tensioning pulley. My 02 makes that same sound in the cold, usually for a second or so at startup. |
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| Author: | ShafferNY [ Fri Dec 18, 2009 8:33 pm ] |
| Post subject: | |
Mine has done that for the last two years I've owned it. It disappears after about five seconds of idling. The colder the weather, the louder it is. I've always considered it 'a Jeep thing'. 
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| Author: | ChiroKJ [ Fri Dec 18, 2009 9:21 pm ] |
| Post subject: | |
same here when its cold |
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| Author: | kskj [ Fri Dec 18, 2009 10:50 pm ] |
| Post subject: | |
Same Here when it gets below 10 is when it really wines until it gets warmed up. |
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| Author: | nightdrv [ Fri Dec 18, 2009 11:04 pm ] |
| Post subject: | |
So I don't want to threadjack, but I do have a cold-weather startup noise on mine as well. I'd rather just post it here instead of making a whole new thread for a 2 second question. Q: When it starts, and for the first 5-6 ft of driving, I hear 6 distinct very faint thumps. 5 normal, then one louder. Mind you, these are almost impossible to hear, but I can hear everything on a car. Anyways, happens all the time (during startup driving). Any ideas? |
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| Author: | tjkj2002 [ Fri Dec 18, 2009 11:06 pm ] |
| Post subject: | |
nightdrv wrote: So I don't want to threadjack, but I do have a cold-weather startup noise on mine as well. I'd rather just post it here instead of making a whole new thread for a 2 second question. Stop calling it a "car" and it may stop making the noise Q: When it starts, and for the first 5-6 ft of driving, I hear 6 distinct very faint thumps. 5 normal, then one louder. Mind you, these are almost impossible to hear, but I can hear everything on a car. Anyways, happens all the time (during startup driving). Any ideas? 
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| Author: | LibertyFever [ Sat Dec 19, 2009 10:02 am ] |
| Post subject: | Re: |
nightdrv wrote: So I don't want to threadjack, but I do have a cold-weather startup noise on mine as well. I'd rather just post it here instead of making a whole new thread for a 2 second question. Q: When it starts, and for the first 5-6 ft of driving, I hear 6 distinct very faint thumps. 5 normal, then one louder. Mind you, these are almost impossible to hear, but I can hear everything on a car. Anyways, happens all the time (during startup driving). Any ideas? I'm going to take a wild guess and say it's the tires, but only if it's been real cold overnight. |
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| Author: | Dje Ryu [ Sun Dec 20, 2009 1:32 pm ] |
| Post subject: | Re: Re: |
LibertyFever wrote: nightdrv wrote: So I don't want to threadjack, but I do have a cold-weather startup noise on mine as well. I'd rather just post it here instead of making a whole new thread for a 2 second question. Q: When it starts, and for the first 5-6 ft of driving, I hear 6 distinct very faint thumps. 5 normal, then one louder. Mind you, these are almost impossible to hear, but I can hear everything on a car. Anyways, happens all the time (during startup driving). Any ideas? I'm going to take a wild guess and say it's the tires, but only if it's been real cold overnight. Tires might also be a little low on air but, I would think that would last more than 5-6 feet and that wouldn't explain a big thump last. Takes about a mile in my J10 to get the Swampers to be round again if it sits for more than a week. On the original topic, my KJ also makes that raspberry fart sound for a couple seconds on startup, and my PS pump has always had ATF+4 in it. I do need to check my high pressure line, though. I have a friend here in Casper who lost all his fluid when the temp got down below zero for a few days in a row, last week. He also has an 05. |
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