Engine Cuts Off When Clutching - Weak Battery Replacement

Electricalbeginner✓ OP Confirmed

Problem

Engine would cut off abruptly when depressing the clutch pedal, typically during the first drive after warm-up, approaching the first stop light. Issue occurred intermittently over several months with increasing frequency.

Engine cuts off when clutch pedal is depressedNo sputter or sound before cutoff - instant shutoffRestarts immediately when clutch is popped in gearNo further issues after restartingOccurs shortly after cold start warm-up periodIntermittent - happened three times over a couple months with increasing frequency

Root Cause

Weak/failing battery showing less than 11 volts. The battery was approximately 4 years old (date code 2018). The voltage drop when releasing the throttle and depressing the clutch was enough to cause the engine to cut out due to insufficient electrical power.

Confidence

Moderate confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted July 2024 on SupraForums.com