Are CP4 pumps causing power loss in Your Truck?

are cp4 pumps causing power loss in your truck

How likely is CP4 failure?

This will eventually cause the CP4 to fail, often around 100,000 miles. Before it fails, metal shavings are produced by the CP4, which travel into the fuel injectors and the fuel lines with catastrophic results.

Is Ram going to recall CP4 pump?

Stellantis (FCA US, LLC) is recalling approximately 222,410 units of its 2019 to 2020 Ram 2500/3500 pickups and Ram 3500/4500/5500 Chassis Cabs equipped with the 6.7-liter Cummins turbo diesel. The recall-affected trucks are equipped with the Bosch CP4 high-pressure fuel pump (HPFP) that could fail prematurely.

How likely is CP4 failure?

This will eventually cause the CP4 to fail, often around 100,000 miles. Before it fails, metal shavings are produced by the CP4, which travel into the fuel injectors and the fuel lines with catastrophic results.

How much does it cost to replace a CP4 pump?

The “CP4” injection pump, as it’s called by many, is the heart of these diesels, and in the past few years it has garnered a reputation for catastrophic failure, resulting in repair costs north of $8,000.

Will a lift pump prevent CP4 failure?

Prevent CP4.

An aftermarket lift pump system is the most affordable way to keep the CP4. 2 alive. FASS, AirDog and Fuelab are the big names in town here. Each of them offer a complete system that not only provides sufficient fuel supply pressure for the CP4.

What years did Ford use the CP4 pump?

The CP4 was standard equipment on the Ford 6.7L Powerstroke. From 2011-2016 GM also used the CP4 in the LML & LGH Duramax engines, switching to the Denso HP4 in 2017 when the L5P was released.

Is the CP4 2 better?

Although the CP4. 2 moves less fuel volume than the CP3 (roughly 20-percent less according to the output of LML Duramax CP4. 2’s), it is substantially more efficient and produces higher peak pressure (30,000 psi vs. 26,000 psi).

How common is CP4 failure LML?

I have read that as much as 7% of CP4 fail on LML Duramax.

Does L5P have CP4?

Duramax L5P Reliability

The L5P is considered the most reliable post-emissions Duramax made to date. With the removal of the CP4.

How common is LML CP4 failure?

I have read that as much as 7% of CP4 fail on LML Duramax.

Is the CP4 covered under warranty?

Yes they covered it. First thing they did was test for water in the diesel. When they found no water they covered the repair. He really had low mileage.

What happens when CP4 goes out?

Failure of the high-pressure fuel pump is catastrophic. It can instantly contaminate the entire fuel system with metal shavings and metal contaminants. The damage is extensive.

What years did GM use CP4 pump?

What Make/Models are equipped with the CP4 pump – The CP4 was standard equipment on the 2011-present Ford 6.7L Powerstroke. From GM also used the CP4 in the LML & LGH Duramax engines, switching to the Denso HP4 in 2017 when the L5P was released.

How likely is CP4 failure?

This will eventually cause the CP4 to fail, often around 100,000 miles. Before it fails, metal shavings are produced by the CP4, which travel into the fuel injectors and the fuel lines with catastrophic results.

How can you tell the difference between CP3 and CP4 pumps?

Basically whe a cp3 quits working it just quits without exploding. It’s typically a slow decline. The cp4 on the other hand doesn’t have a pinned piston and if it rotates slightly it tends to explode and send tiny bits of metal all through your fuel system.

Does Duramax use CP4?

The CP4. 2 is used in GM 6.6L Duramax LML, Ford 6.7L Power Stroke, and 2019-to-present 6.7L Cummins powerplants.

Should I put a lift pump on my LML?

Do you need a lift pump on your LML? You should strongly consider a lift pump for your LML (2011-2016 Duramax). Although there are many benefits a lift pump provides, your LML needs them for 2 main reasons, RELIABILITY & PERFORMANCE.

Is the LML Duramax a good engine?

The LML Duramax is a great engine. It is powerful, efficient, and durable. The LML is the most powerful Duramax engine ever produced. The LML was first introduced in the 2011 model year GMC and Chevy HD trucks.

What is LML Duramax?

LML. The 6.6L RPO LML (VIN code “8”) is . It is a further advanced version of the LMM engine with the majority of the changes addressing a required drastic reduction in engine emissions.

Is there an updated CP4 pump?

Description. GM OEM Newly Updated Stock Replacement CP4 Pump. This is the New Updated CP4 from Bosch that Took Care of the Failures the Early Version Pumps.

What causes a CP4 pump to go bad?

Air in the pump means that metal rubs against metal, causing accelerated wear. This will eventually cause the CP4 to fail, often around 100,000 miles. Before it fails, metal shavings are produced by the CP4, which travel into the fuel injectors and the fuel lines with catastrophic results.

What does CP4 failure mean on a car?

CP4 failure means the high-pressure fuel pump on your 6.7 Powerstroke engine is enable to generate enough constant flow of gas. Therefore, when you turn your vehicle at high RPM speed, the engine visibly starts to jerk or sputter and eventually stalls.

What is a CP4 fuel injection pump used for?

Bosch CP4 high-pressure fuel injection pumps are used in newer and more fuel-efficient diesel engines installed on some American-made cars, trucks, and SUVs. The CP4 pump was introduced as a cost-saving measure, but instead of saving consumers money the pump reportedly fails prematurely. This can result in costly repairs.

Can I use diesel fuel additive to prevent CP4 pump failure?

Using a commercially available diesel fuel additive can be helpful, but cannot be guaranteed to prevent CP4 pump failure.