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87 Iroc bad stalling issues, almost got me killed.

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Old Apr 8, 2012 | 04:39 PM
  #1  
ironreaper87's Avatar
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From: Winston Salem, NC.
Car: 1987 IROC Z28 Camaro
Engine: HSR L98
Transmission: 700R4
Axle/Gears: stock
87 Iroc bad stalling issues, almost got me killed.

My 87 Iroc with a 5.7 continues to stall repeatedly.

I replaced the MAF, TPS, adjusted the injections, new fuel pump.

The process goes like this. I crank the car and it runs fine for about 5 or so minutes. Then it idles down to about 800RPM..and a few minutes more it will just stall.

And when it idles down to around 800 and I put it into reverse or drive, it will stall out.

I have to get this thing inspected soon so if anyone can help it will be really appreciated :/.

And about the death thing. I was at an intersection turning right on red, car was coming but I knew I could make it, let off brake and started to roll then it just stalls on me, so I go rolling right out in front of the car.


I WILL POST A VIDEO SOON
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Old Apr 8, 2012 | 05:49 PM
  #2  
Twin_Turbo's Avatar
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: 87 Iroc bad stalling issues, almost got me killed.

adjusted the injections?

Instead of slapping on new parts, verify a couple things first

What is the minimum air setting? idle speed w/ iac closed? Timing set correctly? Do those first then see if it still stalls. If it does, check the grams per second that the maf reads.
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Old Apr 8, 2012 | 06:36 PM
  #3  
TTOP350's Avatar
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 87 Iroc bad stalling issues, almost got me killed.

Is the tank full ? Whats the fuel PSI? How old is the pickup coil and ICM? When was its last tuneup? How old is the Fuel filter? How many miles are on it? Do yo have a factory service manual?
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Old Apr 8, 2012 | 07:28 PM
  #4  
ironreaper87's Avatar
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Joined: Oct 2011
Posts: 158
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From: Winston Salem, NC.
Car: 1987 IROC Z28 Camaro
Engine: HSR L98
Transmission: 700R4
Axle/Gears: stock
Re: 87 Iroc bad stalling issues, almost got me killed.

Originally Posted by Twin_Turbo
adjusted the injections?

Instead of slapping on new parts, verify a couple things first

What is the minimum air setting? idle speed w/ iac closed? Timing set correctly? Do those first then see if it still stalls. If it does, check the grams per second that the maf reads.
Sorry to sound stupid here but the Air setting, IAC, and checking the MAF. What is involved in checking these three things.

My father is gone for the week (he's the veteran mechanic) and Im taking things slow.

I know the timing is set correctly

Thanks for the reply!
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Old Apr 8, 2012 | 07:31 PM
  #5  
ironreaper87's Avatar
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Joined: Oct 2011
Posts: 158
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From: Winston Salem, NC.
Car: 1987 IROC Z28 Camaro
Engine: HSR L98
Transmission: 700R4
Axle/Gears: stock
Re: 87 Iroc bad stalling issues, almost got me killed.

Originally Posted by TTOP350
Is the tank full ? Whats the fuel PSI? How old is the pickup coil and ICM? When was its last tuneup? How old is the Fuel filter? How many miles are on it? Do yo have a factory service manual?
Tank is always around 1/2-3/4
not sure on PSI
ICM is a few months old.
Last tuneup a year ago
Filter is less than a year
41,000 original miles.
And I ordered a manual and its on the way.
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Old Apr 10, 2012 | 06:00 PM
  #6  
ironreaper87's Avatar
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Joined: Oct 2011
Posts: 158
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From: Winston Salem, NC.
Car: 1987 IROC Z28 Camaro
Engine: HSR L98
Transmission: 700R4
Axle/Gears: stock
Re: 87 Iroc bad stalling issues, almost got me killed.

Haven't got to try anything buy I borrowed a Diagnostic tool and will hook it up to see if it throws me anything.

High school kid keyed my hood and I've been having to deal with that...

What a horrible past couple weeks
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Old Apr 10, 2012 | 07:21 PM
  #7  
z28romance's Avatar
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From: massachusets
Car: 87 z28 stock
Engine: 305 tpi
Transmission: 700r4
Re: 87 Iroc bad stalling issues, almost got me killed.

Originally Posted by ironreaper87
High school kid keyed my hood and I've been having to deal with that...

What a horrible past couple weeks
shoot first and ask later.
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