I got them off of rock auto the ultra-power ones they’re 4 hole instead of 1 how would I check if they are stuck open

 

Link to the injectors?

Watch fuel pressure. Cycle the key a couple times to build pressure in the system, see how fast it bleeds off. Of course, it could also be the pump that allows it to bleed pressure.... So, pulling the injectors/rail up, so you can watch 'em is the best bet. Don't crank the engine, just cycle the key so the fuel pump runs. See if any of your injectors leak.

 

https://www.rockauto.com/en/catalog/...+injector,6224

MFI215

 

Well, according to theory, those should work.... All seems to imply the same injectors were used on the 5.2 and the 5.9. Kinda surprising..... Can't find info on flow rates though.....

 

I’m sick of even looking at the truck today I tried swapping pcm’s that didn’t do anything I’ll test the fuel pressure tomorrow and pull the rail up to see if they are leaking

truck only needs to sit for 5 minutes before it needs to crank for 15 seconds again

 

I cleaned the old injectors the best I could today put new o rings on them and put them back in now the truck starts bam like right now I’ll have to see in the morning if the cab shakes again putting me back to square one again


I wouldn’t recommend those fuel injectors I linked to my worst enemy they’re going straight back to Texas

had to change the oil because it reeked of gas but so far so good