Idling Issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Primer69er · 03-21-2009, 08:37 PM

I'm kinda stumped here, when i got my truck the air filter was too tall for the housing, so i finally put in the correct filter and now when i step on the gas too hard it stalls the truck out like its not getting enough air, so how do i fix this problem?
heres what i mean:

**LockDoc** · 03-21-2009, 10:44 PM

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Look in the air inlet tube and make sure it isn't blocked somehow.

LockDoc

68gmsee · 03-21-2009, 10:56 PM

Make sure that it is in fact the air filter by removing it. If it still stalls then you know it's either a fuel issue or maybe a timing/ignition issue.

If it runs good without it, then you'll probably need to make a change. Not sure where you would go from there. On mine I'm using the small aftermarket one that I bought from Auto Zone. Wish I had my original...

Primer69er · 03-21-2009, 11:29 PM

yeah, it runs alot better without it, but not perfect it still stalls when i get on it hard but not nearly as much. when i cover the inlet tube it kills the truck.
it seems to me like the problem is always there but the filter amplifys it. thanks for the help

Camper Power · 03-21-2009, 11:43 PM

having a taller filter is basicly like the old flip the lid trick to increase airflow, now that your truck is getting less air than it was tuned for its running too rich and flooding out. all it needs is a quick carb tune up

hgs_notes · 03-21-2009, 11:52 PM

Make sure the choke is opening fully. I found this problem with mine today. It was sputtering whenever it was accelerated under load. Choke was about 3/4 closed. Opened it up and it's running great.

Primer69er · 03-22-2009, 11:06 AM

Quote:

Originally Posted by hgs_notes

Make sure the choke is opening fully. I found this problem with mine today. It was sputtering whenever it was accelerated under load. Choke was about 3/4 closed. Opened it up and it's running great.

That might be just the problem, (forgive me for the very non technical terms here because i know nothing about carbs),but it has a little round dial on the front for the choke that you turn to the left for lean, and the right for rich. So should i just crank that thing all the way to lean??

hgs_notes · 03-22-2009, 05:57 PM

What you can do is warm up the engine first, then pull off the air cleaner so you can see the position of the choke, then rotate the choke assembly to full open. As it cools, it should close back up. You might check a haynes manual, etc for "how to" info.

03-21-2009, 08:37 PM	#1
Primer69er Just gettin started! Join Date: Nov 2006 Location: Hays Kansas Posts: 173	Idling Issues I'm kinda stumped here, when i got my truck the air filter was too tall for the housing, so i finally put in the correct filter and now when i step on the gas too hard it stalls the truck out like its not getting enough air, so how do i fix this problem? heres what i mean: __________________ http://www.AWSurveys.com/HomeMain.cfm?RefID=kennyrounds

03-21-2009, 10:44 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,430	Re: Idling Issues - Look in the air inlet tube and make sure it isn't blocked somehow. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

03-21-2009, 10:56 PM	#3
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Idling Issues Make sure that it is in fact the air filter by removing it. If it still stalls then you know it's either a fuel issue or maybe a timing/ignition issue. If it runs good without it, then you'll probably need to make a change. Not sure where you would go from there. On mine I'm using the small aftermarket one that I bought from Auto Zone. Wish I had my original...

03-21-2009, 11:29 PM	#4
Primer69er Just gettin started! Join Date: Nov 2006 Location: Hays Kansas Posts: 173	Re: Idling Issues yeah, it runs alot better without it, but not perfect it still stalls when i get on it hard but not nearly as much. when i cover the inlet tube it kills the truck. it seems to me like the problem is always there but the filter amplifys it. thanks for the help __________________ http://www.AWSurveys.com/HomeMain.cfm?RefID=kennyrounds

03-21-2009, 11:43 PM	#5
Camper Power Registered User Join Date: Feb 2008 Location: Grande Prairie Alberta Posts: 261	Re: Idling Issues having a taller filter is basicly like the old flip the lid trick to increase airflow, now that your truck is getting less air than it was tuned for its running too rich and flooding out. all it needs is a quick carb tune up __________________ eh 1970 Chevy C20 daily driver 1975 GMC Jimmy 4x4 project 1966 GMC C10 Dad's project

03-21-2009, 11:52 PM	#6
hgs_notes GEARHEAD Join Date: Aug 2003 Location: MN Posts: 6,122	Re: Idling Issues Make sure the choke is opening fully. I found this problem with mine today. It was sputtering whenever it was accelerated under load. Choke was about 3/4 closed. Opened it up and it's running great. __________________ If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 Long Fleet C/10 72 Jimmy 4x4 (Junkyard Jimmy) HG's Plow Truck '78 K35 Dually Bigass Farm Truck HG's thread of miscellaneous stuff

03-22-2009, 05:57 PM	#8
hgs_notes GEARHEAD Join Date: Aug 2003 Location: MN Posts: 6,122	Re: Idling Issues What you can do is warm up the engine first, then pull off the air cleaner so you can see the position of the choke, then rotate the choke assembly to full open. As it cools, it should close back up. You might check a haynes manual, etc for "how to" info. __________________ If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 Long Fleet C/10 72 Jimmy 4x4 (Junkyard Jimmy) HG's Plow Truck '78 K35 Dually Bigass Farm Truck HG's thread of miscellaneous stuff



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