Where is the CP4 located on LML?

See all 23 photos A CP4. 2 high-pressure injection pump is tucked at the very front of the Duramax’s valley behind the water pump (arrow).

Does a LML Duramax have a CP4?

In the LML Duramax, the CP4. 2 pressurizes diesel fuel as high as 29,000 to 30,000 psi. This extreme high pressure facilitates fine atomization within the engine’s cylinders. With future, tighter particulate matter emission standards in mind, Bosch designed the CP4 line to produce (and handle) as much as 39,000 psi.

How do I check if my CP4 is failing?

Where is the CP4 located on LML? – Related Questions

How often do CP4 pumps fail?

The Cause of the CP4 Failures: Lack of Lubricity in the Fuel

The Bosch CP4 fuel pump has an unusually high failure rate in the U.S., upwards of 7%, when compared to 1% failure rate in Europe.

What happens when CP4 goes out?

Since the CP4 uses fuel as a lubricant, the lack of adequate lubrication can increase the amount of friction on the internal metal parts such as the drive cam and roller lifters. As a result, small metal particles or shavings begin to get distributed throughout the fuel system and can end in catastrophic failure.

How can we detect fuel feed pump failure?

To confirm that your pump has failed, check the pressure in your fuel lines with a fuel pressure gauge; if it reads zero, then your pump is likely dead. You can also check your car’s fuse box; a blown fuel pump fuse is another reliable symptom of a failed pump.

How is HPFP failure diagnosed?

Signs of High-Pressure Fuel Pump Failure
  1. Losing power. A good indicator that your fuel pump is beginning to fail is that you lose power or have difficulty accelerating when going uphill or carrying heavy loads.
  2. Engine start failure.
  3. Sudden surges.
  4. Jerking during acceleration.

What year Fords have CP4 problems?

What was wrong with the CP4? Because US diesel fuel differs from European, the fuel pump does not work as it’s intended and eventually causes engine damage. The class for this action is all persons who bought or leased a model year 2011 to 2019 Ford vehicle fitted at any time with a Bosch CP4 fuel pump.

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How much does CP4 failure cost?

While supplying high-pressure fuel is an injection pump’s job, the CP4 does so with a high probability of failing (typically around the 100,000-mile mark) and leaving owners with a need to overhaul their truck’s entire fuel system, at a cost that can be anywhere between $8,000 and $10,000.

What is the lawsuit about CP4 pump failure?

A Ram diesel truck class action lawsuit alleges that CP4 fuel pumps can cause engine failure in 2018–2020 Ram 2500, 3500, 4500 and 5500 trucks with Cummins 6.7L diesel engines. According to the Ram CP4 lawsuit, the pumps cannot handle American diesel fuel.

How do you prevent 6.7 CP4 failure?

What can I Do to Prevent CP4 Failure: A couple of things to note here, as I said before change your fuel filters every 10-15,000 miles with Ford Brand Filters. Install an EPA Compliant CP4 Disaster Kit (Highly recommend the one from S&S Diesel). This will save your injectors, lines & rails from contamination.

Is there a recall on CP4 pump?

FCA has issued a widespread recall of the infamous CP4 injection pump, utilized on the 2019-2020 Ram 2500 and 3500 with the 6.7 Cummins diesel engine. Unfortunately, they don’t have parts available to FIX the trucks!

Can you replace a CP4 pump with a CP3?

Fortunately for diesel truck owners, the CP4. 2 pump can be replaced before it causes destruction. The fix to this problem is by replacing the CP4 injector pump with a CP3, which does not harm the engine when it stops working.

How long do LML injectors last?

So, how long do fuel injectors last exactly? Some can be expected to last between 80,000 and 100,000 miles, while the best fuel injectors can last as long as you have your vehicle.

Where is the CP4 pump located Duramax?

The Bosch CP4. 2 pump is located at the front of the Duramax’s engine valley and behind the water pump. Removal of the fuel-injection pump requires removal of the coolant Y-bridge that holds the thermostats.

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