How much does it cost to replace a CP3 pump on a Duramax?

2-to-CP3 conversion is about $3,500 for parts and labor. That might take the breath away from many Duramax owners, but compared to the $8,000-plus it costs should the CP4.

How do I know if my CP3 pump is bad?

There may be a surge at idle due to low or no fuel supply pump pressure to the high-pressure pump. Knocking can be heard if the actual versus desired are too far apart which may be a bad FCA or Fuel Control Actuator.

Does an LB7 need a lift pump?

The GMC and Chevy Duramax pick-up trucks do NOT have a lift pump to supply fuel to the engine. From the factory, the CP3 injection pump is the truck’s only means of getting fuel from the tank to the engine. For example; The AirDog II, FP100 and Raptor pump kits do not require you to drop the tank to install the system.

Can you replace a CP4 pump with a CP3?

The CP4. 2 to CP3 conversion is relatively straightforward (as much as it can be when accessing an injection pump sitting at the very front of a 6.6L Duramax LML engine’s valley). All In Truck Performance in West Texas, specializes in Duramax LML and Allison ECM tuning and custom builds.

How much does it cost to replace an injector pump?

To get your injector pump replaced, you are looking at anywhere from $1,400 to $1,875. For labor, you should pay between $770 and $1,000, while parts will run between $685 and $900.

How long does it take to replace injection pump?

Any car with an external fuel pump is going to be easier and sometimes will take less than an hour. However, if you’re replacing the entire fuel assembly and need to drop the fuel tank, things can get more complicated. On average, this will take somewhere between 2-3 hours.

Do lift pumps add horsepower?

For diesels, lift pumps are the unsung heroes of their respective performance world. In addition to making big horsepower a reality, they add reliability to the entire fuel system, yield improved filtration over stock and (if electric) offer infinite adjustability over fuel pressure.

Does a lift pump replace fuel pump?

Lift pumps only assist in the raising of fuel levels in a given vehicle, they do not push fuel through the system. Without a working fuel pump to push unspent fuel to the fuel injectors, a vehicle will simply not start.

How much does it cost to replace a CP4 pump?

The average cost for a Diesel Injection Pump Replacement is between $1,733 and $2,321 but can vary from car to car.

How long does a CP3 pump last?

Cp3 can go a long time more than that. 150,000 miles is the average life span of a common rail injection system, not just the LB7. The nozzle tips erode over time and the fuel spray gets distorted, mileage drops, and over all performance weakens.

What kind of pump does a Duramax LB7 use?

Add the ATS 7019004260 Twin Fueler Dual Pump Kit (With Pump) to your 2002-2004 GM 6.6L Duramax LB7 and maximize the performance of your fuel system. The ATS Twin Fueler, Dual CP3 Fuel System is the key to power.

Is there a replacement for a Duramax CP3 pump?

The BD-Power 1050110 CP3 pump is remanufactured to BD-Power’s stringent specifications for your 2001-2004 GM 6.6L Duramax LB7. This pump is offered as a drop-in replacement for your factory CP3.

What is the fuel pressure regulator on a Duramax LB7?

The FPR table must be rescaled when using this pump on LB7 and LLY models. The Bostech DEC0 928 400 535 Fuel Pressure Regulator is a drop-in replacement for the OE Fuel Pressure Regulator on your 2001-2004 GM 6.6L Duramax.

Can you add a twin fueler to a Duramax LB7?

The ATS 7018004260 Twin Fueler Installation Kit allows you to add a Twin Fueler Kit to your 2002-2004 GM 6.6L Duramax LB7. All you have to do is supply an additional CP3 Pump. This kit doubles the fueling capability when running large tunes and bigger injectors.