Is the CP4 covered under warranty?

is the cp4 covered under warranty

Is CP4 failure covered by warranty?

The worst part about this issue is that auto dealerships are generally not covering this expensive defect under warranties. Most warranties exclude fuel contamination, and once a CP4 injector pump fails the metal shrapnel it sends throughout the engine and fuel system is considered contamination.

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?

A grenaded CP4. 2 creates an estimated $8,000 to $12,000 in repairs because the entire fuel system—from tank and lines to injectors—has to be replaced because minute metal debris from the failed pump usually makes its way through the system before the engine shuts down.

Is CP4 failure covered by warranty?

The worst part about this issue is that auto dealerships are generally not covering this expensive defect under warranties. Most warranties exclude fuel contamination, and once a CP4 injector pump fails the metal shrapnel it sends throughout the engine and fuel system is considered contamination.

Is there a recall on 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.

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.

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).

What year did Ram switch to 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 long does it take to change a CP4 pump?

A number of aftermarket diesel-performance parts suppliers have kits to do a CP4. 2-to-CP3 conversion. The kits cost around $2,000 and require about two days of shop labor to make the swap.

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.

How long does it take to replace injection pump?

The labor to replace the in tank fuel pump and the inline fuel filter that should be replaced with the fuel pump will take 4 to 5 hours labor.

Is CP4 failure covered by warranty?

The worst part about this issue is that auto dealerships are generally not covering this expensive defect under warranties. Most warranties exclude fuel contamination, and once a CP4 injector pump fails the metal shrapnel it sends throughout the engine and fuel system is considered contamination.

Did Cummins go back to the CP3?

Not only did Stellantis, the new parent company of Ram since the FCA/PSA Group merger, find a way to revert back to the CP3 on the 6.7L Cummins engines supplied for its ’21-present trucks, but it announced a massive high-pressure fuel pump recall back in November for all ’19 and ’20 models.

What does a CP3 pump do?

The CP3 injection pump’s sole job is to create and regulate high-pressure fuel (it’s not timed with the engine’s crankshaft and camshaft). The fact that the CP3 came from Bosch’s heavy-duty line of injection pumps also speaks to its great reliability, as it was designed to play a vital role in million-mile engines.

How common is CP4 failure LML?

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

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?

Outside of the injection pump, the LML is a reliable engine with the exception of the emissions systems. DEF and SCR cause their fair share of problems, but are also covered under warranty for the trucks that still have it. The problems are common enough that deleting the DEF system is frequent among LML owners.

What is the difference between a CP4 and an CP4 2?

A CP4. 1 has a single element and is typically used on smaller European engines. The CP4. 2 is used in GM 6.6L Duramax LML, Ford 6.7L Power Stroke, and 2019-to-present 6.7L Cummins powerplants.

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 2021 Duramax have CP4?

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. Interestingly, Dodge waited eight full years until 2019 to incorporate the CP4 on the 6.7L Cummins and then reversed course relatively quickly, .

What happens if my CP4 fail?

In the case of a CP4 failure that can mean $10K worth of work is covered or the plaintiff reimbursed if they were denied warranty coverage and paid out of pocket to fix the issue. The lawyers also get a hefty sum since payment of their fees are negotiated as part of the settlement as representatives of the class.

Are there any problems with the CP4 fuel pump?

The CP4 high-pressure fuel injection pumps allegedly cannot handle U.S. diesel fuel specifications. The class action lawsuit alleges the fuel pumps have lubrication and water content problems, forcing the pumps to run dry and causing metal to rub against metal.

What happens in a breach of warranty case?

However, in breach of warranty cases, the plaintiffs usually gets their issue covered under warranty. In the case of a CP4 failure that can mean $10K worth of work is covered or the plaintiff reimbursed if they were denied warranty coverage and paid out of pocket to fix the issue.

Does Cummins pay for their warranty?

As far as the warranty going thru the manufacturing company yeah you are correct. Cummins pays for their warranty’s just like zf pays for the 8-9 speeds transmissions when we warranty them.