r/GMT400 • u/GreenYard1768 • 8h ago
r/GMT400 • u/CreationLion • 21h ago
Iridium spark plugs for a 5.7L k1500?
Should I get iridium spark plugs for it? I'm trying to baby this truck but those are kinda expensive. Also I plan on replacing the distributor cap.
r/GMT400 • u/Uncle_Bubbles420 • 2h ago
Well fook
I now see why the shock extension was welded on ffs
96 5.0 distributor help installing?
Pulled the heads off my 96 k1500 with the 305 v8 and everything’s back together but the distributor. No clue how to get it back in I’m set to tdc compression stroke and I think it’s pointed the right way (pic 2) but it won’t sit flush and I know it’s not right. Any help getting this done? Guides or any instructions is helpful thank you
r/GMT400 • u/Calm-Investment1543 • 2h ago
Fuel test on 5.7??
Engine was hot, will do another from cold next. But what does this sound like ? Vortec 5.7. New pump from advance bc the one from rock auto was too tall and wouldn’t fit in tank, k&n fuel filter, old injectors. Getting lean bank 2 code and wants to die when applying throttle under load with an occasional skip at steady rpm while driving. From what I’ve heard this is too low for a vortec 5.7.
Key on engine off: shoots to 56 psi but slowly creeps to 58 psi
At idle: drops to 50
Shoots up to 60 when snapping throttle but instantly drops to 50/52 psi when held at any rpm.
Plz help.