This. ^ If you find everything around the filter head is ok, then its time to put a little (around 5psi) pressure to the fuel system and find the air leak.
Duramax won't start after fuel filter change
- Thread starter dk2429
- Start date
This. ^ If you find everything around the filter head is ok, then its time to put a little (around 5psi) pressure to the fuel system and find the air leak.
When my filter head was going bad, my truck wouldn't start facing up hill . So I parked it with the nose down in my driveway until I got my rebuild kit done.
Okay guys, found the problem, have the part. Just got the whole new fuel filter housing.. here's my deal though- I'm having a HELL of a time trying to get the 2 hoses off the current assembly. All I have to do is take off those 2 hoses and install the new one. But no matter what I try, those damn hoses won't budge.. any ideas?
Probably easier to just buy a few feet of 3/8" fuel line and run new lines. No kinks.
But...tiny screwdriver between hose and pipe, very carefully, to break the corrosion. Dont puncture anything. Pliers with tape on jaws to grab hose and twist.
Sorry to hear your filter head was bad from the get-go. Hate to ask how much it was from a parts store.
But...tiny screwdriver between hose and pipe, very carefully, to break the corrosion. Dont puncture anything. Pliers with tape on jaws to grab hose and twist.
Sorry to hear your filter head was bad from the get-go. Hate to ask how much it was from a parts store.
I got the entire assembly from the Chevy dealer that included the Acdelco filter and WIF sensor for $160. What got me was, the assembly by itself was $115.. For an extra $45, I got the filter and WIF sensor to come with it! Hell of deal if you ask me.
The thing was, there wasn't anything leaking anywhere. The primer was simply not pulling any fuel into the filter. That's why the truck ran perfectly fine, but when I went to change the filter, the primer wasn't working, so I couldn't get any fuel into the filter.
Sounds like you have a decent relationship with your dealer. Glad you got it figured out.
Ya $160 isn't bad I think I paid $115 for the same AC Delco parts on ebay.
If you pressurised the fuel tank it should of leaked even if it was the pump.
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I did do that to attempt to get it started, but it didn't help. I did get some fuel out of the valve, but still wouldn't start.
Priming a duramax lml
As with the lml after changing fuel filter or running out of diesel.... priming is almost impossible. Even after bleeding the air and pushing the primer a hundred times it doesn’t start. It gets air locked so what you do is spray a couple squirts of wd-40 in the intake and it’ll crank right up then after a rough idle it’ll self prime. Works every time
As with the lml after changing fuel filter or running out of diesel.... priming is almost impossible. Even after bleeding the air and pushing the primer a hundred times it doesn’t start. It gets air locked so what you do is spray a couple squirts of wd-40 in the intake and it’ll crank right up then after a rough idle it’ll self prime. Works every time
Unless the grid heater ignites it in your intake and it blows up in your face.
Pressurize the fuel tank a little bit with an air compressor via the fitter tube, blow nozzle, and rag..
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