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Old Sep 20, 2004 | 03:15 PM
  #1  
red90bird's Avatar
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20 Year Member
 
Joined: Mar 2004
Posts: 349
Likes: 1
From: CO
Car: 1990 Firebird
Engine: LS3
Transmission: 4L60E
odd problem

hello all, hopefully I can get some help with a new "little" problem that popped up. lately if my car has been idling for a little while (say five min or longer, example: waiting in the drive thru at mc dodads) I can drive away but when I stop my car dies. I'm not sure I can describe it better than that.

ohh and I would have searched but I have two reasons I didn't
1) I'm not sure what to search for
2) I'm off to work so I figure there will be a few responses by the time I'm off

thanks in advance for any ideas; by the way it happens regardless of how much gas is in the tank.
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Old Sep 20, 2004 | 03:18 PM
  #2  
sellmanb's Avatar
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Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
does it stumble when it dies, or does it just cut off? this will help us determine either fuel delivery, or electrical problem.
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Old Sep 20, 2004 | 03:48 PM
  #3  
Auggie's Avatar
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Joined: Jul 1999
Posts: 811
Likes: 5
From: Maple Grove MN USA
Car: 1984 Z28 Camaro
Engine: H.O. 355 NOS
Transmission: 700R4
Man, I was born in Hibbing. Great town.

Auggie
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Old Sep 20, 2004 | 08:07 PM
  #4  
red90bird's Avatar
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20 Year Member
 
Joined: Mar 2004
Posts: 349
Likes: 1
From: CO
Car: 1990 Firebird
Engine: LS3
Transmission: 4L60E
it stumbles a little bit but for the most part it just dies. when I start it up again I have to give it some gas and basiclly brake stand to get moving.

please don't tell me its the fuel pump, anything but the fuel pump


yeah hibbings a good town, theres just nothing for jobs
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Old Sep 21, 2004 | 06:38 AM
  #5  
bobsroc's Avatar
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Joined: Sep 2004
Posts: 179
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From: Whitehouse, Ohio
Car: 1987 IROCZ
Engine: 305 TPI
Transmission: 700r4
Have you checked anything? Fuel pressure, injectors, fuel pattern in throttle body, vacuum leaks? TPS/IAC? Timing?

Last edited by bobsroc; Sep 21, 2004 at 06:44 AM.
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Old Sep 21, 2004 | 12:57 PM
  #6  
sellmanb's Avatar
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Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
okay so i'm going to go off the notion of fuel starvation. I dont really know much about the fuel system, just remember... K.I.S.S. (Keep It Simple, Stupid -- and no, i'm not calling you stupid ). Start with the easy things like fuel filter, if you have a carb then there's a fuel filter inside of the carb as well. I'd do some tuning of your carb if it's not computer controlled.

Also, something that you can do is maybe you have too low of an idle and your carb doesnt shoot enough fuel in when braking, and with the loss of vacuum from the brake booster, it just kills off? I would this, it's free, easy and quick. Just disconnect your battery for 30 seconds - 1 minute. This will clear all the data from your ECM, starting you off brand new, this way your computer will have to re-learn (so to speak) your driving habits, and it will adjust the idle accordingly.
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