What does a fuel rail plug do on a Duramax?
What does a fuel rail plug do on a Duramax?
This 6.6L Duramax Diesel Fuel Rail Plug is MADE IN THE USA! The installation of a Fuel Rail Plug or Race Plug allows your CP3 Fuel Injection Pump to maintain higher fuel pressures in the fuel rail. The higher the fuel injection pressure, the better the atomization of the diesel fuel being injected into the cylinder.
What does a PPE race plug do?
The PPE race valve increases the fuel pressure relief point in your fuel rail, i.e. how much pressure it can handle before it dumps back to your fuel tank.
Why is my Duramax fuel rail pressure so low?
This is a very common problem that we hear about from our Duramax customers. Actual fuel rail pressure is not keeping up with desired fuel rail pressure. This may only happen in high fuel demand situations like towing or racing but it can also happen with everyday use.
How much does it cost to rebuild a Duramax fuel rail?
Airdogliftpumps.com sells an inexpensive rebuild kit complete with filter and instructions to repair this important part.The water separator screws into the bottom of the filter itself and must be replaced if cracked or damaged. Common hand tools are all that is needed. Approximate time is 1 hour. Parts Cost: $19.99
When to change the fuel filter on a Duramax?
Dirty fuel filter is the most common issue we see when fuel rail pressure is low. The filter should be changed in the 8,000-10,000 mile range if good fuel is being purchased and running mostly low HP tuning, much sooner if running competition/race style tuning.
What kind of transmission does a Duramax diesel use?
It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY.
This is a very common problem that we hear about from our Duramax customers. Actual fuel rail pressure is not keeping up with desired fuel rail pressure. This may only happen in high fuel demand situations like towing or racing but it can also happen with everyday use.
Airdogliftpumps.com sells an inexpensive rebuild kit complete with filter and instructions to repair this important part.The water separator screws into the bottom of the filter itself and must be replaced if cracked or damaged. Common hand tools are all that is needed. Approximate time is 1 hour. Parts Cost: $19.99
Dirty fuel filter is the most common issue we see when fuel rail pressure is low. The filter should be changed in the 8,000-10,000 mile range if good fuel is being purchased and running mostly low HP tuning, much sooner if running competition/race style tuning.
What should the pressure be on a Duramax diesel engine?
Duramax ( diagnostics) 6.6 LB7 & LLY KOEO (Key On Engine Off) rail pressure sensor should read 145 – 261 psi (1.0-1.8 Mpa) LBZ & LMM Duramax KOEO should be 0 psi. A skewed rail pressure reading will not cause a hard start.
