Where is the fuel pressure gage on a Duramax?
Where is the fuel pressure gage on a Duramax?
You will notice a hydraulic style fitting at the front right side of the engine, this is for a fuel pressure gage to test the suction side, good luck finding a fitting to snap on to it,I had to get a Kent Moore gage for 400 bucks,I use it all the time as well as a Tech 2 scan tool. I consider these a must for serious Duramax work.
What should the pressure be on the fuel rail?
With engine running, observe the Actual Fuel Rail Pressure parameter with a scan tool. A normal reading would be approximately 40 MPa (5,802 psi) with the engine cold, and 30 MPa (4,351 psi) at operating temperature. Inspect the fuel supply lines for damage between the fuel tank and the fuel injection pump.
What should vacuum pressure be on Duramax diesel engine?
Attempt to start the engine. ⇒ If the engine does not start, refer to Engine Cranks But Does Not Run . Install the J 44638 to the fuel rail service port and slowly increase the engine speed until reaching wide open throttle (WOT). Vacuum should be less than 5 inches Hg of vacuum.
What happens if the fuel pressure regulator fails?
The fuel pressure regulator controls the fuel pressure in the fuel rail. If there is something wrong with the fuel pressure regulator, it can create too low or too high fuel pressure in the rail. It is not very common that this part fails, but it can happen.
What is the fuel pressure for 2008 5.3 Silverado?
Chevrolet Silverado 1500 Questions – what is the fuel pressure for 2008 5.3 silverado? – CarGurus what is the fuel pressure for 2008 5.3 silverado? im looking to find out what my fuel pressure should be running and not running with only key on?
Why is my Duramax diesel engine not starting?
I have seen more leaks causing no starts, loss of prime and low fuel rail pressure codes from poor fitting aftermarket fuel filters use Delco only. Remember when dealing with power loss and fuel pressure issues the duramax has no in- tank or frame mount fuel pump pushing fuel to the engine.
You will notice a hydraulic style fitting at the front right side of the engine, this is for a fuel pressure gage to test the suction side, good luck finding a fitting to snap on to it,I had to get a Kent Moore gage for 400 bucks,I use it all the time as well as a Tech 2 scan tool. I consider these a must for serious Duramax work.
Where does the fuel leak go on a Duramax?
Fuel leaks on a duramax are almost always on the return side of the system, the smaller of the two fuel lines traveling down the frame rail, going to the fuel cooler and back to the tank. They can leak at the cloth covered rubber return lines at the injectors, these lines can only be replaced in sets left and right side, they are expensive.
