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Unread 11-29-2009, 10:04 PM   #1
Thexonexkid
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Cold Start New to Cold Weather

1997 TJ I6 4.0 fuel injected

So I am new to cold weather and jeeps (all automobiles really) and just wanted to know if there are any tricks to starting the jeep in cold weather. It takes me a few turns of the key to get her going and then she starts pretty slow but starts idling fine. The engine itself has about 84,000 miles but a full tune up was done on it and the transmission about 2,000 miles ago.

Thanks for the advice.

Sorry it is such a newbie question I just am not use to starting a car in 20 degree weather.

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Unread 11-29-2009, 10:06 PM   #2
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Also I use a thin synthetic oil cause I heard that helps.
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Unread 11-29-2009, 10:09 PM   #3
Lastshot
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Couple of tips I always use for cold weather starting

Make sure A/C, Radio and all lights are off.
Turn the key to the on position, wait a couple of seconds, Then turn to the start position and let it crank.
Make sure your starter and battery are in good condition!

Be sure to let the engine idle a little bit before you go, and be easy on it till it gets up to operating temp.
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Unread 11-30-2009, 12:43 AM   #4
fishinjeeper
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ya, i usually let mine idle for a few minutes. usually if its under 30, i put my transfer case in nutral, and put my trans in first. just get everything moving. put it back in park and back in 2wd and good to go.
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Unread 11-30-2009, 12:51 AM   #5
Nonya
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It should start right up and run without any bs, sounds like you need a new fuel pump assembly. Next time before you try stasrting it cold turn the key from off to run about 5 times before trying to start it. If it starts right up its fuel pump time.
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Unread 11-30-2009, 01:17 AM   #6
Thexonexkid
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Originally Posted by Nonya View Post
It should start right up and run without any bs, sounds like you need a new fuel pump assembly. Next time before you try stasrting it cold turn the key from off to run about 5 times before trying to start it. If it starts right up its fuel pump time.
I have a 99 chevy that has this problem and I have to do that every time, I just have not gotten around to fixing the fuel pump. Its not that but that was a good guess. Thanks.
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Unread 11-30-2009, 02:58 AM   #7
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I just let it warm up and go. I just take it easy for about 5 mins.
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Unread 11-30-2009, 09:15 AM   #8
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Originally Posted by Thexonexkid View Post
.. and just wanted to know if there are any tricks to starting the jeep in cold weather. .. .
I just press the button on my remote starter 5 mins before I go out .. toasty

I use synthetic in the engine .. nothing else needed.
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Unread 11-30-2009, 10:01 AM   #9
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Quote:
Originally Posted by Thexonexkid View Post
1997 TJ I6 4.0 fuel injected

So I am new to cold weather and jeeps (all automobiles really) and just wanted to know if there are any tricks to starting the jeep in cold weather. It takes me a few turns of the key to get her going and then she starts pretty slow but starts idling fine. The engine itself has about 84,000 miles but a full tune up was done on it and the transmission about 2,000 miles ago.

Thanks for the advice.

Sorry it is such a newbie question I just am not use to starting a car in 20 degree weather.
20 degrees, thats balmy!
5w30 mobile 1 and let her heat up for about 5 minutes, make sure the heater is turned off till the engine is up to temp as this will leach heat from the engine.
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Unread 11-30-2009, 10:57 AM   #10
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Gets to minus 30 C here, I always plug mine in when it starts to get to minus 10C,

When I start it, I start it up, get out go to the block heater unplug it, get back in insert my faceplate into my stereo and go. I drive slowly until the engine temp starts to increase then begin to drive normally.

I am running plain old 5w30 mopar oil.
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Unread 11-30-2009, 11:12 AM   #11
Nonya
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From the trouble you desctibe it sounds like a fuel pump issue. Might want to look at it closer.
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Unread 11-30-2009, 11:13 AM   #12
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Originally Posted by Noxian View Post
get out go to the block heater unplug it, get back in insert my faceplate into my stereo and go.
mmm... Block heater
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Quote:
gily25 Says...
Issues only become problems when you don't have the tools or time to fix it.
Mike318 Says...
I like my 4.0L like I like my ****... stroked and blown. :duhrock:
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Unread 11-30-2009, 12:02 PM   #13
Wif
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Originally Posted by Lastshot View Post
mmm... Block heater
Just don't forget to unplug it before you drive away ..
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Unread 11-30-2009, 12:21 PM   #14
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Originally Posted by Wif View Post
Just don't forget to unplug it before you drive away ..

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Quote:
gily25 Says...
Issues only become problems when you don't have the tools or time to fix it.
Mike318 Says...
I like my 4.0L like I like my ****... stroked and blown. :duhrock:
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Unread 11-30-2009, 12:52 PM   #15
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Are you having to do an "EXTENDED CRANK" to get the engine to fire off??

If that the issue,,,when the engine is cold, check your fuel pressure. When you turn the key to on, the pressure should come right up to spec. If it doesnt, your expierencing fuel drain back.

The anti syphon check valve in the fuel deliverly system is allowing the fuel in the fuel line to drain back into the tank. It takes a few trys to build up pressure, thus, the extended crank problem. Turn the key ON & then OFF a couple of times and see if that "HELPS" correct the extended crank issue. if it does, replace the check valve.

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