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1972 Chevrolet C10 — clutch engagement changed after a long traffic commute

LongMilesOwnerCommunity StarterJul 14, 20261972 Chevrolet C10Salt Lake City
This started as a small annoyance and I finally decided to track it down. 1972 Chevrolet C10, about 112,000 miles. After a hot stop-and-go commute the clutch engagement point felt different, but it returned to normal later. No slipping at full throttle. What would you inspect before assuming the clutch itself is failing? Mostly looking for the right next step.
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3 replies

V8Nerd850Community StarterCommunity StarterJul 14, 2026permalink
Log the conditions before you spend. Write temp, speed, and in-gear vs coast when the 1972 Chevrolet C10 does it — then decide on parts. Save the big job until that test fails. On “clutch engagement changed after a long traffic,” that was the fork that mattered for me. Just my two cents from doing this recently. I'll update if anything new shows up.
RotorWrench276Community StarterCommunity StarterJul 15, 2026permalink
If it were in my driveway, a pressure test beats staring at a dry driveway if the 1972 Chevrolet C10 is losing coolant with no puddle. That's the branch I'd chase this week. This is from a 1972 Chevrolet C10 in Salt Lake City with 112,000 miles. Have you gotten a second quote in writing? If that fails I'll eat the diagnostic fee.
LongMilesCamper654Community StarterCommunity StarterJul 15, 2026permalink
Ask what changed right before it started. Move a coil or plug on the 1972 Chevrolet C10 if it's cylinder-specific and see whether the code follows. If the cheap test changes it, stop and reassess. That's the whole play. I'd rather pay for diagnosis than a second guess-repair.
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