Description
Description
Fits
| Year | Make | Model | Engine |
| 2001-2016 | Chevrolet/GMC | Silverado/Sierra 2500HD/3500HD | 6.6L LML Duramax |
Catastrophic failure on CP3 fuel injection pumps on 2011-2016 LML Duramax trucks will send small metallic debris throughout the fuel system causing problems throughout the fuel system. The solution? A complete replacement kit that includes all the necessary components to fix this mess. Don’t wait until it’s too late – get it now!
This kit requires no tuning and is EPA-approved. The CP3 pump is already re-calibrated to match the LML stock CP4 fuel curve. This kit is designed to replace the less reliable CP4 that comes stock on the LML.
Part Number: 1090X
Features
- No Tuning Required
- EPA Approved
- Recalibrated To Match LML Stock CP4 Fuel Curve
- New S&S Modified CP3
- Comprehensive Kit
- Replaces Less Reliable CP4
Includes:
- CARB CP3 Pump
- Fuel rails
- Fuel injectors
- Fuel lines
- Master Filter Head Kit (Filters, filter head rebuild kit, WIF plug, bleeder screw, MA Additive)
- All Gaskets & Seals Required
Additional Info
Duramax LML CP4 Pump Failure
The CP4 fuel injection pump in 2011-2016 Duramax trucks suffered high-pressure fuel pump issues due to lack of lubrication. The CP4 was designed to be a more efficient pump than its predecessor, the CP3 pump. However, the CP4 proved to be less reliable than the CP3. An LML CP4 pump failure will present itself with a hard start or no start condition and can result in the following trouble codes: P0087, P0088, P0191, or P128E. This can be confirmed by removing the CP4 pump and fuel pressure regulator and checking for cracks and metal debris on the fuel pressure regulator screen.
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