Chevy silverado idles and turns off in cold weather - PerformanceTrucks.net Forums



Chevy silverado idles and turns off in cold weather

Reply
 
Thread Tools Search this Thread
Old 02-03-2011, 11:02 PM   #1
Staging Lane
Thread Starter
 
Join Date: Jan 2010
Posts: 54
Thanks: 0
Thanked 0 Times in 0 Posts
Default Chevy silverado idles and turns off in cold weather

i have a stock 03 silverado with the 5.3 v8...every morning when it gets cold i start it up, and it idles to the point where it wants to die...as a matter of fact this morning it was around 10 degrees out...after around 5 minutes of being on, it died....another issue is that the CEL turns on as well on when its cold...some times it blinks others it will just stay on...by the way the truck runs perfectly...this is my only issue....any help would be great
SILVY303 is offline   Reply With Quote
Old 02-04-2011, 12:53 AM   #2
13 Second Truck Club
iTrader: (9)
 
grey matter 04's Avatar
 
Join Date: Jul 2008
Location: gonzales,LA
Posts: 1,444
Thanks: 0
Thanked 0 Times in 0 Posts
Default

try cleaning the carbon build up off the inside the throttlebody
bet that solves your problem!
grey matter 04 is offline   Reply With Quote
Old 02-04-2011, 01:36 AM   #3
I have a gauge for that
iTrader: (41)
 
Atomic's Avatar
 
Join Date: Jan 2006
Location: Huntsville, AL
Posts: 14,391
Thanked 5 Times in 3 Posts
Default

A blinking CEL usually means its detecting a lot of engine misfires...
Atomic is offline   Reply With Quote
Old 02-05-2011, 03:58 PM   #4
TECH Resident
iTrader: (8)
 
02'Z71ONDUBZ''s Avatar
 
Join Date: Feb 2009
Location: Tahlequah/Norman, OK
Posts: 797
Thanks: 0
Thanked 0 Times in 0 Posts
Default

It's not your throttle body. Those trucks have defective intake gaskets in many cases, if their the factory orange ones. The gasket material contracts in extreme cold temps, causing a vacuum leak. Once the engine warms up to operating temperature, in most cases, the heat will cause the gasket material to expand, in turn sealing off the intake leak. The service engine light is coming on because you have un-metered air entering your intake track causing multiple misfires. If your truck sounds like it has a huge cam in it at idle but runs like normal once the truck warms all the way up, and only does it on frigid mornings, you need to replace your intake gaskets. GM put out a service bulletin on this a few years ago.
02'Z71ONDUBZ' is offline   Reply With Quote
Old 02-05-2011, 03:58 PM   #5
TECH Resident
iTrader: (8)
 
02'Z71ONDUBZ''s Avatar
 
Join Date: Feb 2009
Location: Tahlequah/Norman, OK
Posts: 797
Thanks: 0
Thanked 0 Times in 0 Posts
Default

By the way I speak from experience, this happened to my truck.
02'Z71ONDUBZ' is offline   Reply With Quote
Old 02-07-2011, 08:08 PM   #6
TECH Enthusiast
iTrader: (1)
 
Join Date: Jan 2005
Location: Colorado
Posts: 636
Thanks: 0
Thanked 0 Times in 0 Posts
Default

and mine x 2 to change your intake gasket
GMC5.3 is offline   Reply With Quote
Old 02-07-2011, 08:11 PM   #7
Where's the Beef?
iTrader: (8)
 
viciousknid's Avatar
 
Join Date: Jan 2007
Location: Dover, Oklahoma
Posts: 9,383
Thanks: 0
Thanked 0 Times in 0 Posts
Default

intake gasket. Just put another engine in my z71 and didn't change the gaskets on the intake. Once we fired it up it would idle rough and even rev up to 2500 and come back down and try to die. O'reilly's had gaskets for about $40. Take you maybe an hour to change em
viciousknid is offline   Reply With Quote
Old 02-08-2011, 12:15 PM   #8
Staging Lane
Thread Starter
 
Join Date: Jan 2010
Posts: 54
Thanks: 0
Thanked 0 Times in 0 Posts
Default

thnks for the help guys....ill replace my intake gasket today...see how it works cuz its gona be really cold tomorow
SILVY303 is offline   Reply With Quote
Old 02-08-2011, 12:25 PM   #9
Resident Retard
iTrader: (31)
 
BlackGMC's Avatar
 
Join Date: Jan 2006
Location: Fort Worth - TX
Posts: 16,951
Thanked 7 Times in 4 Posts
Default

How about telling us what the code is before you start buying parts
BlackGMC is offline   Reply With Quote
Old 02-08-2011, 12:33 PM   #10
Staging Lane
Thread Starter
 
Join Date: Jan 2010
Posts: 54
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by BlackGMC View Post
How about telling us what the code is before you start buying parts
po174 and po173

already changed all the 02 sensors
and cleaned throttle body.....


edit:will not change intake gasket myslef....way to hard for me lol
SILVY303 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
3/5 or 4/6 mcgaughys drop kit 07-13 gmc/silverado GMCSIERRA5.3 GM Parts Classifieds 11 08-07-2015 02:50 AM
Tru Cool Cold Weather Bypass - Do I Need It therock GM Drivetrain & Suspension 4 07-25-2015 10:23 AM
03 ECSB Custom T56 Swap Ketis Trucks and SUV Classifieds 6 07-23-2015 01:37 PM
Need help - Stumble at first cold start, dealer can't find anything wrong Mossyoakglock GMT 900 Trucks General Discussion 0 07-17-2015 09:30 AM
Cold Air Intake turned off o2 sensor CEL. Suburban2500 GMT 800 & Older GM General Discussion 2 07-14-2015 03:10 AM


Tags
2002, 2500, 53, chevrolet, chevy, cold, idles, parts, rough, runs, silverado, start, truck, turn, weather

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 06:19 AM.