1968 Ford Mustang — check-engine light turned itself off — still scan it?

Intermittent stuff lies if you only catch it once. Write temp, speed, and in-gear vs coast when the 1968 Ford Mustang does it — then decide on parts. Don't erase codes until someone who can help has seen them. On “check-engine light turned itself off — still,” that was the fork that mattered for me. This is from a 1968 Ford Mustang in Nashville. Have you gotten a second quote in writing? Parking it somewhere I can hear it better next time.

I wouldn't throw parts yet. Capture voltage while the 1968 Ford Mustang is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. That's the whole play. Trying not to diagnose from the couch.

I'd want a measurement, not a hunch. Swap the cheap/easy piece first on the 1968 Ford Mustang and see if the fault moves. That's the branch I'd chase this week. This is from a 1968 Ford Mustang in Nashville. That's the whole play. I'd sleep better after that step, even if it finds nothing. Parking it somewhere I can hear it better next time.

I went back under the 1968 Ford Mustang and it only happens after a heat soak, not on a cold start. I'd rather look cautious in this thread than stuck later.

Ask what changed right before it started. Loaded-suspension checks on the 1968 Ford Mustang catch play that a wheels-hanging inspection misses. If the cheap test changes it, stop and reassess. That's the whole play. Not interested in a five-hour wait for a shrug.

Start with the test that can prove you wrong. Swap the cheap/easy piece first on the 1968 Ford Mustang and see if the fault moves. Don't erase codes until someone who can help has seen them. Time, temperature, and whether it's in gear are the notes that actually help a shop. Wrote this up on my lunch break.

Cleared nothing. I want service to see the alert on the 1968 Ford Mustang first. Happens in gear, not in park, for what that's worth.