Does Cummins still use the CP4?

does cummins still use the cp4

Does Cummins still use the CP4?

A standard CP3 in a 6.7L Cummins application can outflow a CP4. 2 by roughly 20-percent, but the CP4. 2 is capable of supporting higher pressure. The CP3 was used on both the 5.9L and 6.7L Cummins common-rail engines from ’03-’18 and enjoyed a reputation for reliability (and still does today). hdrams.comImage: hdrams.comCummins does not use the CP4 in any engine it manufactures, The Dodge Cummins use the 6.7 CP3, and not 1 component is inter-changeable with CP4.

Does 2020 Cummins have CP4?

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.

Does 6.7 Cummins have CP4?

If you recall, beginning on 2019 models the 6.7L Cummins was fitted with a Bosch CP4. 2. The CP4. 2 is the same high-pressure fuel pump that has proven problematic and prone to premature failure in LML Duramax applications.

Is Ram replacing the CP4 pump?

If you had a related repair in the last two years, Ram will reimburse you and also replace the Bosch CP4 fuel pump. These are high-pressure pumps, and when they fail you may see a Malfunction Indicator Lamp light up. These are also known as engine check warning lights.

When did Ram stop using CP4 pump?

But that 15-year run came to an end in when Ram made the somewhat questionable decision to switch the injection pump to the CP4. 2. Diesel owners in the know were somewhat frustrated with this decision, but to understand why, we need to look at the track record of each pump.

When did Ram stop using CP4 pump?

But that 15-year run came to an end in when Ram made the somewhat questionable decision to switch the injection pump to the CP4. 2. Diesel owners in the know were somewhat frustrated with this decision, but to understand why, we need to look at the track record of each pump.

How do you prevent CP4 failure?

The problem with the CP4 pump is so well known that several companies sell expensive kits that cost up to $3,600 (before labor costs) to try to prevent the problem. Popular fixes involve boosting the fuel pressure with an additional pump, or replacing the CP4 with the more reliable, but less fuel efficient, CP3 pump.

What fuel pump is in a 2021 Cummins?

Per information from owners taking delivery of 2021 Ram pickups with Cummins diesel engines, as well as photos I’ve seen on social media, it appears that Ram/Cummins have gone back to the old Bosch CP3 fuel injection pump.

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.

Do 2021 Rams have CP3?

. So no need to deal with a recall etc.

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 fuel pump does the 2020 Cummins have?

The factory fuel system on your 6.7L Dodge Cummins consists of your underbed fuel tank, fuel or lift pump, high pressure CP4. 2 injection pump featuring a twin piston pump that can handle up to 39,000psi, and electronically controlled injectors (simplistically put).

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?

But how common is CP4 failure? The CP4 has been documented to fail mostly in cases of 100,000 miles in the USA. Other forums have disclosed that the failure rate is within 5-7%, specifically for LML Duramax engines. Despite this, the pump is well cherished by a lot of diesel engine enthusiasts.

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.

How common is CP4 failure LML?

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

Who uses 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 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 new 6.7 Cummins any good?

Dodge and Ram trucks with the 6.7 Cummins engine are pretty reliable, overall. Sure, it doesn’t have the same legendary reputation as older diesels like the 7.3 PS or 5.9 Cummins. Unfortunately, the emissions parts of the modern day work against reliability in many ways.

Does the L5P Duramax have a CP4 pump?

Denso High-Pressure Fuel Pump

For the first time in the Duramax engine’s history, GM parted ways with Bosch for its fuel system and ECM needs. On the L5P, a Denso HP4 injection pump replaces the Bosch CP4.

Can you delete an L5P?

As predicted by DieselArmy.com, the LP5 was indeed “crackable” and now many owners have successfully deleted and tuned their Chevys and GMs. GM spent a great deal of time and effort redesigning the control system so that it could not be altered by outsiders in any way, this included deleting the engine.

How much HP can a L5P handle?

The Stock Injection Pump Can Support 770rwhp!

Does Ram still use the CP4 pump?

As mentioned before, Ram would not be using the CP4 if it were known to be a major problem. My guess is that there have been several revisions to the pump since it came out years ago. I would like to know what Ram actually did to improve the CP4, or if they did anything at all.

What is a CP4 pump and why is it bad?

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.

Is the Cummins fuel pump tested and proven?

Ram or Cummins would not have chosen this pump unless it’s been tested and proven. It’s very likely these pumps have been tested many thousands of miles. Same for the new motors and transmissions. Ram or Cummins would not have chosen this pump unless it’s been tested and proven.

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.