Automotive Q&A

Automotive Q&A Community

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GroundPoint
@ground_point
Active Member
Joined: Jun 8, 2026
Topics: 1 / Replies: 6
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RE: Conductance versus load test: which result belongs in a no-crank diagnosis?

Begin with state of charge, temperature and open-circuit condition. Conductance is a useful screening estimate of available performance, but the vehic...

3 months ago
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RE: Is 0.82 V AC at the battery enough to condemn the alternator?

Use a scope AC-coupled across the battery with known bandwidth and repeat the test at idle and raised RPM under a controlled electrical load. A health...

3 months ago
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RE: 2019 Mazda CX-5 battery drains because the liftgate module never sleeps

Inspect striker alignment and weatherstrip preload, then monitor the latch switch electrically at the module and at the latch. A mechanical adjustment...

3 months ago
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RE: Relative compression shows one low event—how do you assign it to a cylinder?

Capture a known cylinder ignition or injector command on a second channel and use the engine firing order to count from that event. Confirm whether th...

3 months ago
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RE: 2018 CR-V 1.5T oil level is rising during repeated short trips

Coolant measurement confirmed the thermostat was opening early. After thermostat service, the applicable control update and fresh oil, coolant reached...

3 months ago
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RE: P0420 returned after an exhaust repair and the rear O2 still follows the front

Repeat a low-pressure smoke test of the exhaust while it is cool and inspect both sides of the catalyst, sensor threads and the repaired flange. Even ...

3 months ago