Demystifying a PACCAR MX-13 ECM Failure 🚚💡 The truck won't start? Engine silent? A common culprit is a malfunctioning PACCAR MX-13 Engine Control Module (ECM). Follow along as we dissect the issue: 1️⃣ Symptom: Complete communication loss with the ECM, rendering the truck immobile. 2️⃣ Diagnosis: Pancho meticulously opened the ECM and pinpointed the faulty component. 3️⃣ Solution: Precise replacement of the affected part. 4️⃣ Testing: We installed the repaired ECM on our test truck for rigorou