engine randomly dies and WILL NOT start back up
#1
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Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
engine randomly dies and WILL NOT start back up
I have been fighting a losing battle with this car for 3 long years and have had no luck. I actually was forced to buy a brand new mustang GT too, because I couldn't sell the TA, but it wouldn't run for me either, and I am getting very sick of having no car for shows.
It's at the point where I feel closer than ever but now I have a new problem. Car starts right up when cold. Runs perfect and gets to about 210 degrees. It will idle in my driveway for HOURS and run beautifully. I can rev it in neutral and it responds great. Now when I take it for a ride and it's under load, it feels like it's got a very slight miss at lower RPM's. If I floor it, it sputters and feels like it has no power. Sometimes, I floor it and the tach goes crazy, going to 0 RPM's and then coming back on a few times and then it just cuts out dead, and WILL NOT fire back up. It doesn't even pop or anything while cranking it. I can see fuel spitting from the carb when pushing the throttle, so it is getting gas. It almost seems electrical, but it's odd because it's a carb motor, and theres nothing electrical besides the dizzy!?!?!?! It has a fresh battery and the alt is at about 15 volts at idle. I am really stumped on this one and hopefully someone can shed some light.
Read my sig for motor. Has an edelbrock 600CFM vac sec carb now and an MSD streetfighter dizzy. I have played with timing from 10 degrees base to about 18 degrees base and it never changes the sputtering or lack of power.
It's at the point where I feel closer than ever but now I have a new problem. Car starts right up when cold. Runs perfect and gets to about 210 degrees. It will idle in my driveway for HOURS and run beautifully. I can rev it in neutral and it responds great. Now when I take it for a ride and it's under load, it feels like it's got a very slight miss at lower RPM's. If I floor it, it sputters and feels like it has no power. Sometimes, I floor it and the tach goes crazy, going to 0 RPM's and then coming back on a few times and then it just cuts out dead, and WILL NOT fire back up. It doesn't even pop or anything while cranking it. I can see fuel spitting from the carb when pushing the throttle, so it is getting gas. It almost seems electrical, but it's odd because it's a carb motor, and theres nothing electrical besides the dizzy!?!?!?! It has a fresh battery and the alt is at about 15 volts at idle. I am really stumped on this one and hopefully someone can shed some light.
Read my sig for motor. Has an edelbrock 600CFM vac sec carb now and an MSD streetfighter dizzy. I have played with timing from 10 degrees base to about 18 degrees base and it never changes the sputtering or lack of power.
#3
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Car: 1986 Trans am
Engine: 5.3 LM7
Transmission: T56 6 speed
Axle/Gears: Dana 44 w/ 3.55's
Re: engine randomly dies and WILL NOT start back up
Yea mine does it all the time. Doesn't matter how much gas I have, but I'm sure it's not the carb. I was told it is most likely an ignition module, but the distributer is a brand new MSD. . . .anyone else heard of a module causing those symptoms?
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Car: 1989 Chevy Camaro Iroc-Z
Engine: L98 B2L 350 TPI
Transmission: 700R4 auto
Axle/Gears: 2.77
Re: engine randomly dies and WILL NOT start back up
might want to check your coil as well as all the plug wires, you might have a spark leak and it may not complete the spark to the plug causing it to run like shyt. that is where i would be looking at.
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