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rough idling in cold weather 2001gmc sierra 1500

  
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kevb

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Since: Jan 19, 2007
Posts: 1



(Msg. 1) Posted: Fri Jan 19, 2007 11:36 pm
Post subject: rough idling in cold weather 2001gmc sierra 1500
Archived from groups: alt>autos>4x4>chevy-trucks (more info?)
hi i have a 2001 gmc 1500 sierra 4 wheel drive in cold weather when i start
the truck in the morning the engine races very high then it idles very
rough and shuts off it will start fine again but continue to do the same
thing until the motor completely warms up when the temperature is above
freezing the vechile works fine -any ideas.

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Chevrolet

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Since: Jun 25, 2006
Posts: 64



(Msg. 2) Posted: Sat Jan 20, 2007 1:02 am
Post subject: Re: rough idling in cold weather 2001gmc sierra 1500 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
temp sensor ?... telling the ecm the wrong info
"kevb" wrote in message

> hi i have a 2001 gmc 1500 sierra 4 wheel drive in cold weather when i
> start
> the truck in the morning the engine races very high then it idles very
> rough and shuts off it will start fine again but continue to do the same
> thing until the motor completely warms up when the temperature is above
> freezing the vechile works fine -any ideas.
>

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SnoMan

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Since: Sep 20, 2005
Posts: 1696



(Msg. 3) Posted: Sat Jan 20, 2007 9:55 am
Post subject: Re: Re: rough idling in cold weather 2001gmc sierra 1500 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Sat, 20 Jan 2007 01:02:09 -0500, "Chevrolet"
wrote:

>temp sensor ?... telling the ecm the wrong info


I tend to agree too. Might check ait temp sensor and MAF sensor too.
If you use a K&N filter the oil on them can raise cain with the MAF
sensor and ruin it too.
-----------------
TheSnoMan.com
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Tim

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Since: May 30, 2006
Posts: 4



(Msg. 4) Posted: Wed Jan 24, 2007 10:55 pm
Post subject: Re: rough idling in cold weather 2001gmc sierra 1500 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
What engine do you have ? 6.0 gas ?? If you find out what the problem
is can you please post it. I have the same problem and I am thinking it's
fuel injectors. Also do you ever use throttle body cleaner on this truck
?


"kevb" wrote in message

> hi i have a 2001 gmc 1500 sierra 4 wheel drive in cold weather when i
> start
> the truck in the morning the engine races very high then it idles very
> rough and shuts off it will start fine again but continue to do the same
> thing until the motor completely warms up when the temperature is above
> freezing the vechile works fine -any ideas.
>
 >> Stay informed about: rough idling in cold weather 2001gmc sierra 1500 
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SnoMan

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Since: Sep 20, 2005
Posts: 1696



(Msg. 5) Posted: Wed Jan 24, 2007 10:55 pm
Post subject: Re: Re: rough idling in cold weather 2001gmc sierra 1500 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Thu, 25 Jan 2007 02:13:17 GMT, "Tim" wrote:

>What engine do you have ? 6.0 gas ?? If you find out what the problem
>is can you please post it. I have the same problem and I am thinking it's
>fuel injectors. Also do you ever use throttle body cleaner on this truck
>?


There never was a 6.0 in a 1500 LD. Only a 4.8 or 5.3. They do all
share same block and same ignition and fuel management system.
-----------------
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Paul

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Since: Feb 08, 2006
Posts: 8



(Msg. 6) Posted: Fri Jan 26, 2007 7:59 pm
Post subject: Re: rough idling in cold weather 2001gmc sierra 1500 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
here's a thought ..check the vac line to the fuel pressure regulator .. if
fuel present it is leaking

paul


"kevb" wrote in message

> hi i have a 2001 gmc 1500 sierra 4 wheel drive in cold weather when i
> start
> the truck in the morning the engine races very high then it idles very
> rough and shuts off it will start fine again but continue to do the same
> thing until the motor completely warms up when the temperature is above
> freezing the vechile works fine -any ideas.
>
 >> Stay informed about: rough idling in cold weather 2001gmc sierra 1500 
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