TECH SUPPORT & BULLETINS
Technical Support
GB offers free US-based bilingual (English/Spanish) technical support for our products. Our technical support staff are available Monday through Friday from 7:00 am to 4:30 pm PST. Technical support can be reached by contacting us here, or by calling (562) 272-7333.
GB also offers several other free technical and educational resources including Technical Bulletins, YouTube videos and our TechBlog. We also invite you to visit our Facebook and LinkedIn pages to stay current with new product releases and updates to our technical resources.
Technical Bulletins
Our technical bulletins cover important procedures, technical tips, cautions and warnings that must be followed during the installation and use of our products. We include our technical bulletins with the product when applicable. In all cases, you should refer to the vehicle manufacturer's procedures during the installation of the product. If you have questions regarding the installation or use of our product please contact us.
Click on the PDF icon to view or download our technical bulletins.
TB 100 - INSTALLATION OF SIDE FEED FUEL INJECTORS
This TB covers important procedures for the installation of side feed style injectors commonly used on Nissan and other import vehicles.
TB 101 - INSTALLATION OF CPI NUT KIT RECOMMENDED DURING SERVICE
Applies to GB PN: 833-22101
This TB covers the need to replace the CPI nut kit which supplies fuel to the Central Port Injection (CPI) unit on the GM 4.3L engine.
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TB 102 - FORD POWER STROKE 7.3L FUEL INJECTOR IDENTIFICATION
Applies to GB PNs: 722-501, 722-502, 722-503, 722-504, 722-505
This TB helps the technician or counterman identify which injector is used on a vehicle using the solenoid code stamped on top of the injector.
TB 103 - FORD POWER STROKE 7.3L IDM MODULE REPLACEMENT
Applies to GB PNs: 921-110, 921-120
This TB covers critical tests that must be performed on the vehicle prior to the installation of the new Injector Driver Module (IDM). Failure to perform this procedure may result in immediate damage to the IDM.
TB 104 - FORD POWER STROKE 6.0L FICM REPLACEMENT
Applies to GB PNs: 921-122, 921-123, 921-124
This TB covers critical tests that must be performed on the vehicle prior to the installation of the new Fuel Injection Control Module (FICM). Failure to perform this procedure may result in immediate damage to the FICM.
TB 105 - GM DURAMAX LLY, LBZ, LMM FUEL INJECTOR IDENTIFICATION
Applies to GB PNs: 732-501, 732-503, 732-504
This TB helps the technician or counterman identify the injector part number used by each Duramax engine code by inspecting the keying of the electrical connector, which is unique to each engine code.
TB 106 - INSTALLATION OF FORD POWER STROKE 7.3L INJECTORS
Applies to GB PNs: 722-501, 722-502, 722-504, 722-505
This TB covers important tips and procedures that must be followed during the installation of injectors on the Ford Power Stroke 7.3L engine.
TB 107 - INSTALLATION OF FORD POWER STROKE 6.0L INJECTORS
Applies to GB PNs: 722-506, 722,507, 722-5064PK, 722-5074PK
This TB covers important tips and procedures that must be followed during the installation of injectors on the Ford Power Stroke 6.0L engine.
TB 110 - INSTALLATION OF DODGE/RAM CUMMINS 5.9L & 6.7L INJECTORS
Applies to GB PNs: 712-501, 712-502, 712-503, 712-504, 712-505, 712-506
This TB covers important tips and procedures that must be followed during the installation of injectors on the Dodge/RAM Cummins 5.9L and 6.7L engines.
TB 111 - INSTALLATION OF GM DURMAX LB7 INJECTORS
Applies to GB PN: 732-502
This TB covers important tips and procedures that must be followed during the installation of injectors on the 2001-2004 GM Duramax LB7 6.6L engine.
TB 112 - INSTALLATION OF GM DURAMAX LLY, LBZ, LMM INJECTORS
Applies to GB PNs: 732-501, 732-503, 732-504
This TB covers important tips and procedures that must be followed during the installation of injectors on the Duramax LLY, LBZ and LMM engines.
TB 113 - INSTALLATION PROCEDURES FOR GB'S ARCTIC POWER VOLT 58 VOLT FICM
Applies to GB PNs: 922-158P
This TB covers installation procedures for GB's 58 volt FICM on the Ford Power Stroke 6.0L. The Arctic Power Volt FICM reduces injector stiction, a common issue on the Ford 6.0L injector.
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TB 114 - INSTALLATION PROCEDURES FUEL PRESSURE REGULATOR UPGRADE KIT
Applies to GB PN: 522-038
This TB covers installation procedures for GB's fuel pressure regulator kit for the Ford 6.0L Power Stroke. Often referred to as the blue spring kit, this upgrade kit increases the factory fuel pressure to improve injector operation and life.
TB 115 - INSTALLATION OF SPRINTER 2.7L INJECTORS
Applies to GB PN: 717-501
This TB covers important installation procedures for injector replacement on the 2000-2003 Sprinter 2.7L.
TB 116 - INSTALLATION OF SPRINTER 2.7L INJECTORS
Applies to GB PN: 717-502
This TB covers important installation procedures for injector replacement on the 2004-2006 Sprinter 2.7L.
TB 117 - TECHNICAL NOTE: FUEL INLET TUBES FOR DODGE/RAM 5.9L & 6.7L CUMMINS
Applies to GB PNs: 522-043, 712-501, 712-502, 712-503, 712-504
This TB discusses a revision to the fuel inlet tube on the Dodge/RAM 5.9L and 6.7L engines. The tubes should be replaced any time the injector is serviced.
TB 118 - NAVISTAR DT466/E BI INJECTOR INSTALLATION
Applies to GB PN: 718-501
This TB covers important tips and procedures that must be followed during the installation of injectors on the 1999-2003 Navistar engine using BI injectors.
TB 119 - WARNING REGARDING SERVICING GASOLINE FUEL INJECTORS
Applies to GB PNs: All gasoline injectors.
Caution: Fuel system may be pressurized even with ignition off. Refer to manufacturer’s service manual before working on fuel system.
TB 120 - INSTALLATION OF NISSAN SIDE FEED INJECTORS
Applies to All GB Side Feed Injectors
This TB covers important installation procedures for injector replacement on the Nissan side feed injectors and the risk of the lower o-ring tearing resulting in engine damage.
TB 122 - TECHNICAL SUPPORT LINE
This TB provides GB's technical support line.
TB 124 - DODGE/RAM 5.9L/6.7L CUMMINS SEVERE DUTY FILTER KIT (SDFK) INSTALLATION
Applies to GB PNs: 522-049, 522-050
This TB includes the installation instructions for the SDFK on Cummins equipped Dodge/RAM vehicles. The kit provides improved fuel filtration over the originally installed system. This reduces the potential for contamination and damage to fuel system components.
TB 125 - INSTALLATION OF FUEL INJECTOR HARNESS ON FORD 6.0L POWER STROKE
Applies to GB PN: 522-054
This TB includes the installation tips for the installation of the injector harness on the Ford 6.0L Power Stroke.
TB 126 - PMD CALIBRATION RESISTOR INSTALLATION ON GM 6.5L DS PUMP
Applies to GB PN: 921-180
This TB discusses the need to transfer the calibration resistor on the PMD being replaced to the new replacement PMD.
TB 127 - INSTALLATION OF FORD 6.7L POWER STROKE INJECTORS
Applies to GB PNs: 722-509, 722-510, 722-511, 722-512
This TB includes important calibration instructions that must be followed during injector installation on the Ford Power Stroke 6.7L. It also covers the need to replace the injector fuel supply line and hold-down bolt during replacement.
TB 128 - INSTALLATION OF NAVISTAR INJECTORS ON DT466, 570, MAXXFORCE ENGINES
Applies to GB PNs: 718-510, 718-511, 718-512, 718-513, 718-514, 718-515, 718-516, 718-517,
718-518, 718-519, 718-520, 718-521 - ALSO SEE TB 135
This TB includes important instructions that must be followed during injector installation on Navistar DT466, DT570, HT570, MaxxForce DT, MaxxForce 9, MaxxForce 10, N9 and N10 Engines.
TB 135 - INSTALLATION OF HIGH PRESSURE OIL RAIL SEAL KIT ON NAVISTAR ENGINES
Applies to GB PNs: 522-069 & 718-510, 718-511, 718-512, 718-513, 718-514, 718-515, 718-516, 718-517, 718-518, 718-519, 718-520, 718-521 - ALSO SEE TB 128
This TB includes important instructions that must be followed during injector installation of the high-pressure oil rail seal kit on Navistar DT466, DT570, HT570, MaxxForce DT, MaxxForce 9, MaxxForce 10, N9 and N10 Engines.
TB 121 - INSTALLATION OF CHRYSLER THROTTLE BODY INJECTORS
Applies to GB PNs: 811-16104, 811-16105, 811-16106, 811-16116
This TB discusses the two different style injectors used which are interchangeable and important injector installation tips.
