gravismaximus

ill be driving down the road and the car will die. i loose all spark and yet everything inside the car still works fine, a couple of sec's latter as im rolling slower the car starts to spark again and im going on my mary way. the car did it last year to towards the end of the summer, i thought it was a ign moduel heating up. so i put some more dieelectric greese on it and it seemed to work. i then replaced the distribitor over the winter and made sure i put a lot of electric greese on the ign mod but it seems to be doing it whenever it wants to. it has even started to back fire when it happens now. so i have bought a new ign mod-new plugs and my question is, could the fuseible links coming off the starter be ausing this? thanks for the help in advance :grouphug:

71coupe

If you already changed the module, then the next step is to check the pickup coil in the distributor (not to be confused with the reg coil)

OHSIXX

No expert here, but when I loss spark it was the coil.

71coupe

Here are some pics of the picup coil (reluctor)




Most of the time this will be the cause of intermittent failure on an HEI (other than the module). If you have an Ohm meter, you can check the resistance on it - (I don't have the values). You might be able to go to a parts house & take your meter & see if they will let you check a new pickup coil to see what it's reading.
:cheers:

comp

look REAL close at the wire in the dist.. with it running apply vac to dist.
wiggle them.. they fray under there over time from the advance moving :thumbs:

71coupe

Just noticed you replaced the entire dist. Might not be the p/u coil.

Older Than Dirt

It ain't the fusible links. My car did similar things like you describe and it turned out to be a dirty fuel filter. I don't recall any backfires though.

stpman

I had this happen to me.........press the gas down it would quit a couple seconds later it would re-fire. it was a broken pick-up coil wire

Steve :steering: