Thread: Intermittent - What a pain in the old you know where

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58 Corvette with L98 engine: Running great for months, then died one time 5 miles from home a week ago, and immediately restarted - drove home with no problem. Four day ago about 5 miles from home started coughing through the intake and sputtering (just like earlier) - eventually died after turning around to head back home. Waited 40 minutes restarted but hardly ran - called tow truck - embarrassing. Once home the car restarted - barely running but noted small amount of white smoke from left exhaust. Engine has been using oil but normally I don't see any smoke. Never any codes were thrown. Yesterday reset lifters from one turn past zero to 3/4 turn. Vacuum is good at 15 - 17". Checked compression and it was all around 120-130 PSI. #5 & 7 spark plugs are just a bit darker than all the others. Did coolant pressure check and it was good. Started and it was smooth and solid - went for test ride and performed well. Stopped at a neighbors about 300 yards from home - spent maybe 3 hours - went to drive back home and barely made it back. Engine would either run right for a few seconds and then start sputtering and backfiring. Thankfully it ran strong for a few seconds to get me up my driveway and into the garage. Still no codes thrown. Suggestions please.

That "I" word is really a bad thing from what you say it seems something is breaking down when hot. Maybe check ignition system.

Sounds like (apples and oranges here) the original ignition module on my 2001 Indian motorcycle. They would suffer from heat soak, and cut out until they cooled off.

Anyway it sounds like something similar. Good luck.