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Engine Stalls

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Old Aug 21, 2010 | 07:12 PM
  #1  
F1 Bomber's Avatar
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Car: 85 Trans Am Iroc-Z
Engine: 305 H.O. 4bbl
Transmission: 5 Speed
Axle/Gears: 3:73 Posi-trac
Engine Stalls

Hey there, So I have a 85 T/A with the 305 H.O. 4bbl. When I go to start it up after it has been sitting for 6+ hours, it likes to stall right as soon as it fires up the first time and then again the second time unless i give it a little gas and keep it at 1000 rpm for a minute. After that its good until I let it sit for a 6+ hours again. I used a carb and choke cleaner but nothing. Any suggestions?
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Old Aug 21, 2010 | 07:24 PM
  #2  
Stevolwevol's Avatar
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From: Michigan
Car: 86 IROC Z, 92 RS
Engine: 305 4bbl, 305 TBI
Re: Engine Stalls

Do you pump the peddle before starting? Is your choke closing?
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Old Aug 21, 2010 | 07:50 PM
  #3  
F1 Bomber's Avatar
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Car: 85 Trans Am Iroc-Z
Engine: 305 H.O. 4bbl
Transmission: 5 Speed
Axle/Gears: 3:73 Posi-trac
Re: Engine Stalls

No I dont pump the peddle, and the choke isn't closing.
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Old Aug 21, 2010 | 08:26 PM
  #4  
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From: Michigan
Car: 86 IROC Z, 92 RS
Engine: 305 4bbl, 305 TBI
Re: Engine Stalls

Try pumping the peddle four or five times and start. Repeat two or three times. See what happens. Pump to the floor.
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Old Aug 22, 2010 | 09:24 AM
  #5  
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From: Michigan
Car: 86 IROC Z, 92 RS
Engine: 305 4bbl, 305 TBI
Re: Engine Stalls

I am curious to know if your car started as it should?
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Old Aug 22, 2010 | 01:03 PM
  #6  
F1 Bomber's Avatar
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Junior Member
 
Joined: Aug 2010
Posts: 32
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Car: 85 Trans Am Iroc-Z
Engine: 305 H.O. 4bbl
Transmission: 5 Speed
Axle/Gears: 3:73 Posi-trac
Re: Engine Stalls

I tried pumping the peddle and it didn't seem to do much, still stalled, I am going to give the choke another check once it stops raining.
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Old Aug 30, 2010 | 11:13 AM
  #7  
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Car: 87 Firebird Auto V6 2.8l
Re: Engine Stalls

I have the same starting issue on an 87 firebired 2.8 V6, But it will also die randomly while driving. Regardless of outside temp.
I just pulled a code 34

Last edited by thunder69n; Aug 30, 2010 at 11:31 AM. Reason: put wrong year its an 87
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Old Aug 30, 2010 | 11:29 AM
  #8  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Engine Stalls

Originally Posted by Stevolwevol
Try pumping the peddle four or five times and start. Repeat two or three times. See what happens. Pump to the floor.
Shouldn't need to pump it more than once. Twice in cold weather.
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Old Sep 2, 2010 | 12:43 PM
  #9  
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Car: 87 Firebird Auto V6 2.8l
Re: Engine Stalls

on mine changed
Mass airflow sensor
o2 sensor
pcv valve
spark plugs

no luck still starts like ****
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