Why does my Duramax start then die?
The lines and filter assembly are under vacuum when the engine is running. So if there is a leak, it will be air entering the fuel system which kills the engine. That is why, when pumping the primer to pull fuel from the tank, the engine will stay running. So, stop the air from leaking into the fuel system.
What happens when a GMC Silverado shuts off?
Usually if it is bad the truck stays on but won’t start after it gets warmed up so that is probably out of the question. GM’s Passlock/VATS anti-theft system does not let it run for 5-10 seconds; it starts and immediately stalls.
Why does my GM Truck start then die?
He was thinking fuel pump or fuel filter. He was about to take it to a dealer to be checked out when someone told him to turn the key to the on position and leave it there until the dash lights went out then start the truck. He did this and says the truck is running fine now. It reset the security system.
Can a Silverado Sierra GMC start then dies?
I’ve got another 99 6.0L that i’ve swapped the MAF, MAP, Idle Air, Throttle Position sensor, both computers, all relays, nothing changes the behavior. I’ve checked all the fuses i can find that would be releated to engine function, on both fues panels.
Is the 2006 2500HD D / A running fine?
My 2006 2500HD D/A was running fine this past weekend. I parked it in my driveway on Saturday. I moved it to my side driveway on Sunday, took about 5 minutes of running. Shut it off and came back a few minutes later to restart it. It would start very easy, and run for about 2 seconds then die.
Why does my Duramax Diesel keep cutting out?
. The Duramax diesel is susceptible to fuel starvation and getting air in the fuel lines. This can be contributed to the fuel filter housing design and the fact that the Duramax does not use a lift pump. Rather, the high pressure fuel pump (injection pump) is responsible for vacuuming fuel from the tank.
I’ve got another 99 6.0L that i’ve swapped the MAF, MAP, Idle Air, Throttle Position sensor, both computers, all relays, nothing changes the behavior. I’ve checked all the fuses i can find that would be releated to engine function, on both fues panels.
What was the problem with the LBZ Duramax in 2006?
Glow plug failure was a concern on the 2006 model year LBZ and LLY Duramax models, but the problem should have been long corrected for owners of these years. The concern was that the glow plug module would over cycle the glow plugs, creating a scenario in which the tip of the glow plug could actually deform and/or break off in the engine.
How do you prime a Duramax after running out of fuel?
Prime the fuel system by turning the ignition on (Run position) for 30 seconds, but do not start the engine. This allows the pump to prime the system. Turn the ignition off, and then crank it for 15 seconds. If it does not start, repeat the first task and this one until it starts (cycle the key).
What is LLY Duramax?
The LLY (internally called the 8GF1) (engine code “2”) is a 6.6 L; 403.9 cu in (6,619 cc) turbocharged engine which debuted in mid-2004 and continued until the end of 2005. It is a 32-valve design with high-pressure common-rail direct injection and aluminum cylinder heads.
How do you test a Ficm on a Duramax?
Checking the FICM Just remove the two bolts holding the reservoir to the cowl and push it to the side. Remove the two screws on the lid of the FICM and take it off. When you look inside, you will either see 4 screw heads or 7 screw heads depending on the year your truck was manufactured.
What is wrong with the lly?
The most common issues LLY owners encounter include decreased fuel mileage, overheating and poor turbo response. These symptoms result from the inlet mouthpiece of the Garrett turbocharger having to fit into a smaller engine space.
What are the symptoms of a bad Ficm?
What a Failing FICM Looks and Sounds Like. When you aren’t getting 48-volts to the injector coils you get: hard starts, rough idle, loss of power, poor drivability, and excessive smoke out the tailpipe—and in cold weather each of those symptoms will be amplified.
Why does my 04 LB7 engine not start?
Now engine wont start anymore. Went to start my 04 LB7 this morning to let it warm up before going to work. As I shut the door and walk away, the engine died. I tried to fire it back up but it just spins over and doesnt start. The truck has 144k, has about 3.5k on new injectors installed by dealer, fuel filter was replaced around the same time.
Why does my 2010 Silverado 1500 not start?
2010 Silverado 1500 wont start. How to reset Passlock system I have a 2010 Silverado 1500 and i am not able to start it up. I just replaced the fuel pump, but it still wont start up. There is an icon with a car and a lock so i assume its the passlock…