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Burnt burb resurrection (It's mine again!)

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Well i replaced the whole distributor since i was in there and its still randomly dying....?? next I guess is to put the OEM coil back in...

when i first started troubleshooting it i cleaned a good metal spot off and layed a plug on it and had NO spark for like a 20-30 second crank over.... then had the GF try again and it sparked a few odd times and came up and ran....... thats when i changed the dizzy.

Am i correct in thinking that the Ignition module, coil, and ignition switch under the dash on the column are the only things that kill spark on these trucks....??

Low oil pressure switch is the fuel pump power so thats not it,

nuet safety switch is to the starter so its out,

does the ECM have the power to do that.... I would guess so :thinking:

This sucks is all I know,, :dunno: I just sold my other truck a few weeks ago so this is my DD now :haha: Figures it'd die now:rolleyes:
 
well I changed the coil and started it up..... I've let it run for about 25 minutes now and it did stumble a few times after about 2-3 minutes. But its still running, and its gonna sit like that for a while before it ever sees a road. I have the living room window open and nothing on, listening to it to make sure its smooth.
 
wasn't the coil..... :doah: drove around town for a while.... it failed. it only does it when off the gas. idling, coasting, etc. :dunno: gonna have to look at wires but I would think wires would do it under load too.
 
i ve had similar problems in the past
check these areas :
wiring harness in engine bay was worn through next to steering column
fuel pump relay check with known good one its on the fire wall passenger side
check all grounds on engine to frame
also check harness to the fuel sending unit and sending unit itself check for a good ground and check to make sure you have power on both sides of sending unit ie: outside of tank and inside of tank.
these are areas i have had issues hope it helps if you need pics of factory wiring diagrams let me know can take photos and post for you
almost forgot about colapsed fuel lines on top of trans bell housing
 
I have to check the harness yet... it is electrical not fuel i'm pretty sure.... when it decides it wants to not run I have no spark. I have found now that if I let it sit for a few hrs its start right back up and run.... :confused:
 
I wish i knew where in dhcomp's thread he started with his issues. He replaced everything before messing with the harness. His was uber speratic. It would run for a few days with no problems. Then randomly die. Then randomly start again.
 
that could be the ecm module in the distributor ,usually if they go out there done check with a meter
 
that was replaced with the distributor.

I have to look into the harness next I guess.... been camping this weekend so didn't get to it.... I'll probably start tomorrow
 
Random thought but look for wires damaged in the engine fire.

I don't know if you remember my situation with my diesel Blazer where it would occasionally (and becoming more frequent) not want to start. As in I'd turn the key and nothing would happen.

Turned out the ignition relay's wiring harness had a broken wire in it. From the outside it looked okay but the wires were dingy and dirty. I replaced the last 6" or so of wires and the problem was instantly solved and never returned.

Check your wires.
 
I'm going to attempt to wiggle all the wiring behind the dizzy while its running (strings or something) just for that reason... the only baffling part and probably the most evidence to wires messed up (against something they shouldn't be). Is that if its cold I can start it up and it may die, may not, ,, when ever :dunno:...... but if it's still cold it will start right back up. If its had time to warm up its flat dead and wont spark for NOTHING.

Let it sit a few hr's, go back to it and I can start it right up and drive it away no problem.

Every time, it follows that pattern.
 
the only wiring damaged in the fire were near the front and passenger side of the engine compartment.... and those were just the plastic loom melted. I did replace a plug on the fender side of the A/C condenser but it was only cause I had it and the plug its self was melted. I'll recheck everything though cause I may have been exited enough to miss something back when I figured out how good the wiring still was:doah:
 
Keeping in mind that a couple people on here had their wires melted together who had never had an engine fire.
 
yeah... that's why im gonna mess with them first..

I don't wanna be crawlin around in the engine compartment while its running and purposely stuffing my hand through the spark plug wires. So i'm gonna tie a string to em and run it over the hood. then jerk the string a bunch to see if it dies.
 
y5mgisi said:
I wish i knew where in dhcomp's thread he started with his issues. He replaced everything before messing with the harness. His was uber speratic. It would run for a few days with no problems. Then randomly die. Then randomly start again.
Click to expand...

So, i'm here. The issue I had was repeatedly frying Ign modules. The wires that plugged into it were bare, and shorting. Fixed them, and no more issues.

The fact that you lose spark, then regain it with no real changes makes me think its something else.
 
only other thing I can really think of is the switch on the column under the dash:dunno: Or a busted wire as mentioned... It is getting to be where I have no idea how im going to trust it again until I find a concrete "RIGHT HERE is the problem" type thing..... when it starts it may work fine for a full day before it does it... I really cant be taking it to work until its fixed FOR SURE:doah: The first part of my drive is going over a 3/4 of a mile long 2 lane bridge that's a main artery for traffic around here..... stalling on that would be bad
 
shady said:
wasn't the coil..... :doah: drove around town for a while.... it failed. it only does it when off the gas. idling, coasting, etc. :dunno: gonna have to look at wires but I would think wires would do it under load too.
Click to expand...

If you really have no spark that's a separate issue but this one clue alone makes me think it could be the IAC valve? Just something to check to make sure it's opening.

I have had coils go out in my regal and the first signs were it won't run at idle or low RPM, then as the coil gets hotter and shorts out worse it won't run at all.
 
mine was randomly dieing, if it was warm it wouldnt restart, once it cooled down it would fire back up, i replaced almost everything in the ignition system. ended up being the ground to my fuel pump.
 
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