The fuel pressure regulator on a Two thousand six Chevy Silverado One thousand five hundred with a 4.3-liter engine is designed to preserve a fixed fuel pressure across the fuel injectors. In course, fuel injectors arrange not ajar farther when the vehicle accelerates, the length of future they are yawning determines the size of acceleration. For this brains the compel must be fixed regardless of the length of bit they are regulate. Flip the lid over and communication the diagram depicting the lodging of all the fuses, relays and nomenclature. Extract the fuel pump fuse from the box. This Testament disable the fuel pump.
The fuel pump delivers higher publication and force than required for process, so the impulse regulator provides modulation.
Instructions
1. Unlatched the hood and remove the cap on the fuse and relay box located on the Chauffeur's side fender able-bodied.2. Embrace the interpretation in the ignition and header to begin the engine allowing it to Eccentric person over for three to four seconds, then turn the primary off. Remove the air duct to the air cleaner by pulling it off.
3. Remove the air box by loosening the clamp on the throttle item with the screwdriver and pulling it off. Establish the fuel pressure regulator on the backside of the fuel rail close to the bulkhead. It is the round valve in the fuel rail with a vacuum line attached to it. It is held into the fuel rail by a snap ring on the topside. Now that the fuel rail no longer has fuel pressure, should you decide to replace the regulator, it is a simple matter of pulling off the vacuum hose and removing the snap ring with snap ring piers and pulling it out. Reverse the procedure to install it.
4. Install the fuel pump fuse. Install the air box and tighten the clamp followed by installing the air duct.
