Hall effect sensor magnets can get weak/ worse with heat or bad batch. The same goes for the mosfets in the control box. Takes time to change coil while it all cools down,and starts working again . Coils are usually pretty tough, ever ohm a presumed bad coil?
If your using an msd ignition then you should use the right coil pack. You’re basically overloading the coil because the msd runs a 40-50,000V coil and your steady running 20-30,000v factory coil so it can only handle that for so long before basically soldering itself inside. I’ve been using MSD 6al box forever and never had any issues with coils
Exactly get the right coil for the job. The voltage needs to be higher, and you need to make sure the primary resistance is below the recommended amount otherwise that can cause issues. Also make sure you aren't running solid core wires, not a lot of people know about that.
Same conclusion I came to after seeing the stock type part box, the comment about it being the 4th time, and the MSD at the end. Seems like he's just overloading those coils. The fix then is quite simple...better coils or a different ignition. If the coils, run the engine, and are the off-the-shelf kind of available, then I would absolutely swap my ignition for a different "less hot" setup. Sounds like it's just overkill. Literally. I find it's increasingly more important and prudent to use parts that can be replaced by my local auto stores (especially on road trips) instead of relying on summit, rock auto, or similar. Also...is no one going to point out that this dude pushed a 454 dually, any distance, by himself, in flops??
A few weeks after my wife passed away, a package came for her in the mail. It was one of those mugs! I use to think they where dumb, but now I keep it around me just as a reminder of her!
Yup. So many issues are caused by faulty grounds. Bad grounds love taking out electronic ignition parts. Seen alot of people install msd and other ignition boxes because the oem parts failed. They usually install a new ground when they install it and now the bad ground doesn't affect it, it just moves to a new component.
@@jbrownjetmech-4783 But stock parts are so boring!! 😭 Ok for real though, stock of the shelf parts are always made very crappy and break easily. That's why I would put performance parts on a stock engine anyday!
@scottmorgan133 ya I replaced my 94 dodge dakota 5.2 I did the complete msd ignition system kit which came with everything including plug n play harnesses, msd plugs, wires, billet distributor, and msd 6al and msd coil that looks like oem coil and it has been great for me
@@vincebonilla4006 🤣 that what I tell my girlfriend when I’m running low on gas. I ask her do she has sneakers. She ask why cuz I want to be comfortable when you have to push. 😂
The ballast resistor decreases power to the coil, it'll run at about 9v, decreasing spark intensity by approximately 25%, that would cause many more issues being a TBI like cylinder washdown from poorly burning fuel
If you read all the paperwork that comes with the MSD box, you will see they Highly recommend using the MSD coil and distributor… Also you might need to install a one way resistor in line with your ignition to prevent things exactly like this.. I have been using and installing MSD products in many different vehicles for Years.. Decades actually, and I have never had one issue, ever… If you’re not sure or dont understand then I would highly suggest taking your vehicle to a competent shop that has experience with these ignition systems.. Also, make sure All of your wiring is sufficient and all grounds are properly hooked up with good connections and contact.. MSD Ignition is an awesome upgrade and very reliable… You can also call their tech line if need be.. Hope this helps, because they really are a great product 👍🇺🇸
@AlexJonesWasRight is absolutely right, solid core is for points, ignitions running 6-9 volts (ballast resistor), they can't carry the voltage fast enough and creates excessive amounts of heat through the module and coil.
Dude my dad had that Same exact truck he bought brand new in 1993 with the Tonawanda 454 v8 motor and that truck was the most reliable truck ever, never did that truck break down and it always turn key start, when he sold it it was still running perfect with 244,000 thousand miles on it. Such a good truck. The trucks now a days suck. They don't make them like they use to!!
I loved my 88 first year of this gen it same mock looking digital sweep gauges they were analog but looked electric like the corvettes of the era very cool it was stock remember those 85mph clusters lol what a joke.
Check grounds, check wires. When I went to MSD I upgraded wires as well. 8mm-10mm. A factory coil will get you by like what you're doing but like you said you keep a spare. Smart man, should be a simple fix. I love it
I believe that there is a higher voltage coil available for MSD, but you could add a resistor and use the standard coil. I still own a points ignition car, and I always carry tools and a complete tune up kit, especially after what happened. The points "head" (contact) broke off of the arm, and the car died instantly. It took about 10 minutes of checking, which also makes a clear fuel filter nice, (had fuel) to see it, and being in the middle of nowhere, I ended up adjusting the points arm so it made contact, and it got me home, luckily. Never again. 💙 T.E.N.
I used to have a 78 Mustang that was a burnout machine but would blow the water pump every time I did one, so i carried spares and usually changed one weekly sometime twice daily.
Had that issue, use thermal paste on the metal backside of the module. Transfers heat out of the electronics better and they won't burn out inside so fast.
Usually if youre burning thru coils its because its getting a constant 12v and over heating. Needs to be wired so when its during starting it gets full 12v but while running it goes thru a drop resistor and lowers operating voltage
You probably should be using the matching coil to the distributor but also my opinion is it's because it's in such a hot area it Burns out faster from all the heat that surrounds it. You need to relocate your coil to a cooler spot.
I know I’m not a licensed car mechanic but the one thing I can tell you about HVAC. If you have a bunch of random issues that keep popping up or burning up parts you either have a bad connection or ground issues. Also, I try to do things by the book and use factory OEM parts.
At work we have one and keep a spare coil in the glovebox and when the truck doesnt start whe plug the spare and unplug it, then install the original and the truck runs, dont know why but thats what it does
I would say check grounds but the msd seems to be cross contacting power causing a short thats blowin out the coil.. id start at checkin the msd mounting screws are not making contact with a power source..
If you're gonna upgrade the ignition box you have to upgrade the coil as well. That MSD ignition is cooking your stock coils because they can't handle the additional power.
I've had an MSD6A box give me intermittent failures. The cure is to replace the box or to learn to bypass the MSD box in an emergency. If you're a gearhead, you'll be able to tell the difference with and without an ignition box. Years ago, aftermarket GM ignition modules were failing quickly. Something to do with heat.
