If you browse forums often, chances are you've come across some heated discussions around the CP4 fuel pump. The CP4, short for "Common Rail Pump 4," is a high-pressure fuel injection pump that made ...
The problem: An improperly molded part can cause the fuel pump to fail, causing the vehicle to not start or stall. The fix: Dealerships will replace the fuel pump module with an improved part. How to ...
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