How long do CP3 pumps last?

The Bosch CP3, used on the ’01-to-’10 Duramax and ’03-to-current Cummins engines, is known to last 250,000 miles or more before needing to be replaced. Of course, performance enthusiasts also know these pumps are only capable of supporting approximately 500 hp.

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. 2 fail, it’s a bargain.

How do you test a CP3 pump?

You can simiulate max output for the CP3 by unplugging the FPR and fuel sensor. This forces the CP3 to put max output on the fuel rail. To do the check you will have to pull you glow plugs and watch excessive fuel from coming out the glow plug holes.

How much fuel pressure does a CP3 need?

If you are running a CP3 in a high-performance application, we highly recommend installing a fuel supply pressure gauge to ensure there is correct fuel pressure at all times. Recommended feed pressures for CP3 and CP4 equipped engines: Dodge/Cummins ’03 – ’16 (5.9L & 6.7L) no less than 8 PSI / no more than 15 PSI.

How long does it take to change a CP3 on a Duramax?

about 16 hours
2 to CP3 typically requires about 16 hours, with most of that time spent removing parts to get to the pump that sits at the front engine valley.

Do you have to time a CP3 pump?

Unlike previous (pre-common-rail) injection pumps, it has fewer tasks to perform. 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).

How long does it take to do a CP3 conversion?

2 to CP3 typically requires about 16 hours, with most of that time spent removing parts to get to the pump that sits at the front engine valley.

How long will a CP4 pump last?

around 100,000 miles
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.

Does a CP3 pump need to be timed?

What fuel pump is in 2011 Duramax?

2011-2016 Duramax LML CP4 High Pressure Fuel Pump Failure Kit – Bosch® New.