PUMP, Auxiliary Coolant, High Temperature Before replacing the High Temperature Auxiliary Coolant Pump,...
Ram technical service bulletin 9100861 Rev 4 for 2025-2026 Ram 1500, 2026 Dodge Charger and 2022-2025 Jeep Wagoneer and others.
- Bulletin number
- 9100861 Rev 4
- Component
- Electrical system
- Summary
- PUMP, Auxiliary Coolant, High Temperature Before replacing the High Temperature 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) Inspect battery terminals for damage to rule out a battery drainage issue. 6) Ensure the PCM is up-to-date with the latest available flash.
Owners of these vehicles have filed 520 complaints in the electrical category.
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