This diagram (which shows the low-pressure fuel circuit on the right side of the pump) is similar to what you’d see in a Bosch CP3.3 NH pump, which is the model used on an LBZ Duramax. First ...

Just shy of 50,000 Jeep Wrangler, Jeep Gladiator, and Ram 1500 models in the United States are being recalled as they may have a high-pressure fuel pump that could fail prematurely.

Fuel-injected engines require the pump to supply fuel at a consistent pressure. For gas engines, this is usually a few dozen pounds per square inch (PSI), although some high-performance cars need ...

The CP4, short for "Common Rail Pump 4," is a high-pressure fuel injection pump that made its way into Ford and GM diesel trucks starting in 2011.

The remedy for the issue, offered by Service Bulletin N242450160, is full replacement of the high-pressure fuel pump and the high pressure fuel pump feed pipe. The fix takes about 1.5 hours to ...