Hours of operation: 8am-4pm. This is a very common problem that we hear about from our Duramax customers. 2. The first step is to check the fluid level and examine the condition of the fluid for contamination. The Fuel Pressure Relieve Valve, or FPRV, is a small, but annoying LLY Duramax problem. Hesitation on the gas pedal; 1.4 04. Expedited shipping options are available (prices calculated based on delivery address) and will be displayed on the checkout page. We specialize on ecodiesel, duramax and powerstroke. If rail pressure deviates more than 1000 PSI from desired, diagnose the low pressure and high-pressure fuel system. Monitor actual vs. desired rail pressure under heavy load. Simply flushing the fuel system is 2.8L LWN Duramax Diesel Fuel Economy. Simply flushing the fuel system is This doesn't check the mechanical function of the sensor you have to swap a known good one in. Low rail pressure may or may not cause an MIL (check engine light). The fuel economy chart below is based off the initial LWN Duramax models, brought to market in 2016. Sometimes, not often, once a month or so my truck at start up won't fire, just turns over. Check the fuel rail pressure sensor circuit. A decrease in power acceleration; 2 How Much Does it Cost to Replace a Fuel Pressure Regulator? A number of fuel-related DTCs may be set on some 2017-2018 Silverado, Sierra; 2019-2021 Silverado 2500HD/3500HD, Sierra 2500HD/3500HD, and Silverado 4500HD/5500HD/6500HD models equipped with the 6.6L Duramax diesel engine (RPO L5P, L5D). Stay Up to Please Call for Availability. 2001 2500HD Sierra w/6.6L Duramax diesel. The back pressure sensor reads exhaust manifold back pressure how ever it is not mounted directly to it. Strong gas smell; 1.3 03. The Check Engine MIL also may be illuminated. The worst part about the sudden fuel pump failure on this engine is that it caused a large number of metal shavings to spread throughout the fuel system and contaminate everything. It should be about 0.5 volts. 2. Facebook-f peak firing pressure and thermal management. It is located above the exhaust manifold on the drivers side of the engine, towards the front of the head. The sensor is then threaded into this block. Prior to changing the fluid, you should check the vehicle records to verify the last time that the filter and fluid was changed. 2001 2500HD Sierra w/6.6L Duramax diesel. Please Call for Availability. Chevy/GMC Truck and Duramax Turbo Diesel Forum; Chevy/GMC Duramax 07.5 -10 LMM; Chevy/GMC Duramax 2011 LML; Chevy/GMC Duramax 06-07 LBZ; Chevy/GMC Duramax 04.5-05 LLY; Chevy/GMC Duramax 01-04 LB7; Chevy/GMC 6.2L and 6.5L; Ford Powerstroke. I have to go under the hood and pump up my diesel fuel system - located on the passenger side of the engine. With 5 volts shorted to signal rail pressure will read 0, with the sensor unplugged rail pressure will be 227000 kpa. A detailed visual inspection to GDE offers diesel ECM engine tuning products to improve fuel economy and performance. Check the fuel rail pressure sensor circuit. The sensor is then threaded into this block. Prior to changing the fluid, you should check the vehicle records to verify the last time that the filter and fluid was changed. Black Smoke; 1.2 02. Strong gas smell; 1.3 03. Check the fuel rail pressure sensor voltage at key on engine off. This is a very common problem that we hear about from our Duramax customers. These conditions may be caused by corrosion CST Monday thru Friday. GDE offers diesel ECM engine tuning products to improve fuel economy and performance. Excludes other GM vehicles. Skip to content (248) 977-9531; support@greendieselengineering.com . Price: $64 Genuine GM/AC Delco Replacement Parts 01-04 LB7 Duramax Fuel Return Line Condition: New. 0.1 What is a Duramax Fuel Pressure Regulator? After the filter head, the next likely culprits for air in the fuel lines on an LB7 are the rubber fuel hoses in the valley of the engine that connect to the CP3 injection pump, the fuel filter housing, the fuel injection control module, and the fuel pressure relief valve. If rail pressure deviates more than 1000 PSI from desired, diagnose the low pressure and high-pressure fuel system. This sensor is on the front of the left fuel rail. DTC Codes (Check Engine Light) DTC P1093, P0087 causing limp mode is common with this issue. 2020-2022 6.6L L5P DURAMAX; 2017-2019 6.6L L5P DURAMAX; 2015-2016 6.6L LML DURAMAX; 2011-2014 6.6L LML DURAMAX; if in doubt check here. Based on fuel tank capacity for Yukon XL with available 3.0L Duramax Turbo-Diesel engine and EPA est. 2011-2016 Duramax LML CP4 High Pressure Fuel Pump Failure Kit - Bosch New Shipping Note: Free shipping on this kit is Ground due to size & weight. After 6 It should be about 0.5 volts. Chevy/GMC Duramax. 26 hwy mpg (4WD). Call For Top Brands Check out a list of all manufacturers we carry. Ford Truck and Powerstroke Turbo Diesel Forum; Ford Powerstroke 2011-Up 6.7L; Hours of operation: 8am-4pm. These fuel economy ratings are EPA estimated and found on the GM Media Website. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owners Manual. Black Smoke; 1.2 02. The Check Engine MIL also may be illuminated. Stay Up to This sensor is on the front of the left fuel rail. Order Placement: All orders are placed Via KD Online Store. Ford Truck and Powerstroke Turbo Diesel Forum; Ford Powerstroke 2011-Up 6.7L; Condition: New. Call For Top Brands Check out a list of all manufacturers we carry. 1.1 01. The first step is to check the fluid level and examine the condition of the fluid for contamination. Installing a FASS Fuel System DOES NOT Void Manufacturers Warranty! Order Placement: All orders are placed Via KD Online Store. This doesn't check the mechanical function of the sensor you have to swap a known good one in. Using a 7/8 wrench, loosen the banjo bolt that connects the fuel line to the relief valve some fuel may drain from fitting but if excessive fuel drains out that could be an indicator of a faulty relief valve; Remove bolt and sealing washers; Using a 1 1/16 wrench, loosen the relief valve from the fuel rail; Remove valve from fuel rail DTC Codes (Check Engine Light) DTC P1093, P0087 causing limp mode is common with this issue. Actual fuel rail pressure is not keeping up with desired fuel rail pressure. 1 Common Duramax Fuel Pressure Regulator Problems. Hesitation on the gas pedal; 1.4 04. This is a great safety measure GM implemented, but over time, especially if your vehicle has power levels greater than stock, the FPRV can become a problem. Pressure is lead from a small pipe to a manifold block bolted to the head. The worst part about the sudden fuel pump failure on this engine is that it caused a large number of metal shavings to spread throughout the fuel system and contaminate everything. Chevy/GMC Truck and Duramax Turbo Diesel Forum; Chevy/GMC Duramax 07.5 -10 LMM; Chevy/GMC Duramax 2011 LML; Chevy/GMC Duramax 06-07 LBZ; Chevy/GMC Duramax 04.5-05 LLY; Chevy/GMC Duramax 01-04 LB7; Chevy/GMC 6.2L and 6.5L; Ford Powerstroke. After the filter head, the next likely culprits for air in the fuel lines on an LB7 are the rubber fuel hoses in the valley of the engine that connect to the CP3 injection pump, the fuel filter housing, the fuel injection control module, and the fuel pressure relief valve. 2.8L LWN Duramax Diesel Fuel Economy. 1 Common Duramax Fuel Pressure Regulator Problems. Low rail pressure may or may not cause an MIL (check engine light). A detailed visual inspection to Your range may be less. We specialize on ecodiesel, duramax and powerstroke. 3 DIY Guide: How to Replace a Fuel Pressure Regulator. Excludes other GM vehicles. Kit Details Complete repair solution for LML CP4 Pump failure. The fuel economy chart below is based off the initial LWN Duramax models, brought to market in 2016. The Fuel Pressure Relieve Valve, or FPRV, is a small, but annoying LLY Duramax problem. 2011-2016 Duramax LML CP4 High Pressure Fuel Pump Failure Kit - Bosch New Shipping Note: Free shipping on this kit is Ground due to size & weight. Price: $64 Genuine GM/AC Delco Replacement Parts 01-04 LB7 Duramax Fuel Return Line Condition: New. Exergy Duramax LB7 to LML Fuel Rail Pressure Sensor Adapter (0) Reviews: Write first review. Kit Details Complete repair solution for LML CP4 Pump failure. A number of fuel-related DTCs may be set on some 2017-2018 Silverado, Sierra; 2019-2021 Silverado 2500HD/3500HD, Sierra 2500HD/3500HD, and Silverado 4500HD/5500HD/6500HD models equipped with the 6.6L Duramax diesel engine (RPO L5P, L5D). Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owners Manual. The FPRV is a plug that utilizes a small spring to relieve fuel rail pressure when it gets too high. The back pressure sensor reads exhaust manifold back pressure how ever it is not mounted directly to it. Skip to content (248) 977-9531; support@greendieselengineering.com . 0.1 What is a Duramax Fuel Pressure Regulator? I have to go under the hood and pump up my diesel fuel system - located on the passenger side of the engine. These fuel economy ratings are EPA estimated and found on the GM Media Website. 3 DIY Guide: How to Replace a Fuel Pressure Regulator. Chevy/GMC Duramax. The FPRV is a plug that utilizes a small spring to relieve fuel rail pressure when it gets too high. 1.1 01. 26 hwy mpg (4WD). Your range may be less. 2020-2022 6.6L L5P DURAMAX; 2017-2019 6.6L L5P DURAMAX; 2015-2016 6.6L LML DURAMAX; 2011-2014 6.6L LML DURAMAX; if in doubt check here. Check the fuel rail pressure sensor voltage at key on engine off. Based on fuel tank capacity for Yukon XL with available 3.0L Duramax Turbo-Diesel engine and EPA est. Exergy Duramax LB7 to LML Fuel Rail Pressure Sensor Adapter (0) Reviews: Write first review. CST Monday thru Friday. Installing a FASS Fuel System DOES NOT Void Manufacturers Warranty! This is a great safety measure GM implemented, but over time, especially if your vehicle has power levels greater than stock, the FPRV can become a problem. Pressure is lead from a small pipe to a manifold block bolted to the head. A decrease in power acceleration; 2 How Much Does it Cost to Replace a Fuel Pressure Regulator? After 6 Sometimes, not often, once a month or so my truck at start up won't fire, just turns over. Monitor actual vs. desired rail pressure under heavy load. These conditions may be caused by corrosion Using a 7/8 wrench, loosen the banjo bolt that connects the fuel line to the relief valve some fuel may drain from fitting but if excessive fuel drains out that could be an indicator of a faulty relief valve; Remove bolt and sealing washers; Using a 1 1/16 wrench, loosen the relief valve from the fuel rail; Remove valve from fuel rail Condition: New. Actual fuel rail pressure is not keeping up with desired fuel rail pressure. It is located above the exhaust manifold on the drivers side of the engine, towards the front of the head. Facebook-f peak firing pressure and thermal management. With 5 volts shorted to signal rail pressure will read 0, with the sensor unplugged rail pressure will be 227000 kpa. Expedited shipping options are available (prices calculated based on delivery address) and will be displayed on the checkout page.