THERE IS A SHRADER VALVE LOCATED JUST BEHIND THE INTAKE MANIFOLD. LOOKS SIMILAR TO A PSI VALVE STEM ON A TIRE. REMOVE THE CAP AND RELIEVE THE PRESSURE JUST AS YOU WOULD ON A TIRE.
Bump the starter, in other words turn your ignition(key) to start just long enough to turn over engine but not start. This is the metheod the haynes manuel uses for a 95 Nissan 4x4 w/fuel injection. It releases compression in the FI system, but since the engine isn't running(if it's running it needs more fuel pumped from gas tank)and since all FI is computer controlled...no more fuel is pumped becase the engine isn't running.
I own a 95 silverado 5.7 and when I turn off the engine, the fuel pump stops running and there is no more pressure in the fuel lines. It's most likely the same on your 93.
The old stand method - Pull the fuel pump fuse, turn the engine over with the fuse removed (engine may run momentarily as it uses up the remaining fuel) and viola no residual pressure in the fuel system. Don't forget to put the fuse back!
Remove the gas cap, and then look for a Schroeder valve on the fuel rail. If there is no valve, then you cannot relieve the pressure. Just be prepared for a spay of fuel when you take the fuel filter off. Wrap a rag around the coupling as you loosen it.
EVAP emission control system pressure sensor high.
A diagram of a 1993 Chevrolet Silverado AC system can be found a local auto part chains. These stores are connected to an online data bases which have diagrams for many vehicles mechanical systems.
The most likely cause is the system is low on refrigerant. The second would be a defective pressure cycling switch.
To relieve pressure before it can cause damage to the system that is pressurized.
To relieve excess pressure in cooling system exceeding predetermined value.
They are screewed into the exhaust pipes--SYSTEM. I belive there is 3 of them in exhaust system. There is none after the muffler.
Chevrolet does not use inertia switches. The fuel system is computer controlled with relays.
The schrader valve on the low pressure side of the system.
Check your connections and the air injection check valves. -Jager
Trouble code P1416 means: AIR System Bank 2
Im trying to figure the same thing
find the schrader valve on the fuel rail depress the stem and it should release the pressure from the fuel system
They are screewed into the exhaust system / pipes. There about 4 inches long and have a electrical wire in the end of them.
schrader valve on fuel rail
Trouble code P0171 means: Fuel Trim System Lean (Bank 1
you don't its hard-programmed into the vehicle PCM. It's IMPOSSIBLE to delete
FIRST YOU MUST HAVE A obd2 engine scanner and then scan the ABS brake system to be able to determine what is wrong with it. Then repair as needed
To relieve pressure from the system for service To troubleshoot fuel pump performance To monitor fuel pressure regulator To evacuate contaminants from the system
Trouble code P0171 means: Fuel Trim System Lean (Bank 1)
Locate the plug on the bottom of the radiator to drain it. Put some radiator cleaner in and drain it again.
It is probley a wheel senor that is bad, Need to scan ABS system to locate problem,
It is an error code relating to the ABS system. I believe it is a right front speed sensor issue.
Vacuum lines on the 2003 Chevy Silverado 2500 heavy duty pickup truck. A diagram of the entire vacuum line system can be obtained from most Chevrolet dealerships.