Removal Procedure
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- CAUTION:
- Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
- Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.
Remove the fuel injection fuel rail (1). Fuel Injection Fuel Rail Assembly Replacement - Bank 1 , or Fuel Injection Fuel Rail Assembly Replacement - Bank 2
Inspect the fuel injection fuel rail insulators (1) and replace if necessary.
Use the EN-51097 replacer (1) to spread apart both sides of the fuel injector hold down clamp (2) evenly and remove the clamp.
- NOTE:
- Whenever ANY fuel injector is removed from the cylinder head or the fuel injection fuel rail, the fuel injector MUST be rebuilt.
- Some vehicles are NOT originally equipped with fuel injector dust seals. If NOT present when removing the fuel injectors, ensure NEW seals are installed regardless of whether present or not.
Disassemble and inspect the following components for ALL exposed fuel injectors (1):
- Fuel Injector Hold Down Clamp (2) - ONLY replace if necessary
- Fuel Injector Collar (3) - ONLY replace if necessary
- Fuel Injection Fuel Rail Seal (4) - ALWAYS replace
- Fuel Injector Seal Spacer (5) - ALWAYS replace
- Fuel Injector Dust Seal (6) - ALWAYS replace
- Fuel Injector Nozzle Housing Seals (7) - ALWAYS replace
- Rebuild ALL exposed fuel injectors (1). Fuel Rail and Injectors Cleaning and Inspection