How to Troubleshoot Excessive Black Smoke on a Caterpillar 325c ExcavatorHow to Troubleshoot Excessive Black Smoke on a Caterpillar 325c Excavator January 13, 2024January 13, 2024 heavydutydiag 0 Comment This article explains how to troubleshoot excessive black smoke on a Caterpillar 325c excavator 2023 CAT ET 2023A 2023C &... READ MOREREAD MORE