Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

stumbling

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Old Dec 16, 2004 | 10:02 PM
  #1  
84 t/a 5.0's Avatar
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From: Arizona
Car: 1984 Trans Am H.O.
Engine: 350
Transmission: 700-R4
Axle/Gears: stock 3.73
stumbling

Hey everyone, i'll try to explain this the best I can. When I make a slow turn (not sharp) onto another street, and I am still giving it a little gas, it seems to cut off or something, as it won't accelerate and kind of stumbles for a short amount of time until i'm done with the turn. I'm thinking it has something to do with the carb. Any ideas? Oh yeah, it's a stock CC Q-jet in my 84 T/A automatic tranny.

Last edited by 84 t/a 5.0; Dec 16, 2004 at 10:06 PM.
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Old Dec 17, 2004 | 12:10 AM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Fuel is sloshing away from the main jet. Check the float level.
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Old Dec 17, 2004 | 12:10 PM
  #3  
83_1/2 L69's Avatar
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Joined: May 2003
Posts: 264
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From: SillyCon Valley, CA
Car: 83 Z-28 (Original owner)
Engine: 305 CC-carb
Transmission: Richmond 6-speed, Rear:3.73
How old is your fuel pump/pressure regurator?
If the regulator built into the bottom of the fuel pump is weak, the carb will not have enough fuel (low fuel pressure).

Test the pressure first, if it is OK then adj the float level.
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Old Dec 17, 2004 | 12:22 PM
  #4  
Stekman's Avatar
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Joined: Jul 2003
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
I'm with five7 on this one. Sounds more like a float issue. If it were pump related, it would be more of an "anytime I get on the gas" issue.
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Old Dec 17, 2004 | 01:21 PM
  #5  
naf's Avatar
naf
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From: Lexington, SC
Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Five7 probably has it but while you're there you may want to replace the float. They can soak and loose buoyancy over time causing problems and are cheap to replace anyway.

Last edited by naf; Dec 18, 2004 at 09:13 AM.
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Old Dec 17, 2004 | 03:14 PM
  #6  
84 t/a 5.0's Avatar
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Joined: Jan 2001
Posts: 385
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From: Arizona
Car: 1984 Trans Am H.O.
Engine: 350
Transmission: 700-R4
Axle/Gears: stock 3.73
The fuel pump is fairly new, so i doubt that's it. I'll look into the float. Thanks alot guys.
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