1970 Datsun 240Z — steering wheel vibration only at one highway speed — buyer question from Baltimore

Intermittent stuff lies if you only catch it once. Loaded-suspension checks on the 1970 Datsun 240Z catch play that a wheels-hanging inspection misses. Don't erase codes until someone who can help has seen them. On “steering wheel vibration only at one highway,” that was the fork that mattered for me. Not gospel, but it saved me a headache. If that fails I'll eat the diagnostic fee.

Ask what changed right before it started. Loaded-suspension checks on the 1970 Datsun 240Z catch play that a wheels-hanging inspection misses. You'll know quickly if you're on the wrong tree. No need to make it theatrical. If it repeats twice more I'll book time.