PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps:...
Ram technical service bulletin 9100861 for 2025-2026 Ram 1500, 2022-2025 Jeep Wagoneer and 2022-2026 Jeep Grand Wagoneer and others.
- Bulletin number
- 9100861
- Component
- Engine
- Summary
- PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run pump run for at least 20 minutes before moving on to step #2. 2) Inspect the pump connector area for presence of water. 3) Inspect the pump connector for corrosion. 4) Inspect the pump for coolant contamination as this can cause the pump to stall. 5) Ensure the PCM is up-to-date with the latest available flash. 6) Inspect battery terminals for damage to rule out a battery drainage issue.
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