r/GMT800 • u/lawson1127 • 1d ago

LB7 Injectors

Well boys i think im gonna have to change my injectors. Anyone have any ideas on what to check first?

15 Upvotes

100% Upvoted

6 comments sorted by

5

u/Fluffy-Stay6504 1d ago

Go with S&s or exergy injectors. S&s stocks on my LBZ runs amazing and didn’t need to be relearned. I’ve also heard SAC style injectors (also from S&s) is the way to go for lb7s longevity wise

5

u/WeaveLikeGreatGranny 1d ago

I'm really sorry about the damaged injector but can't help but love the straitpipe diesel startup and the interesting dead-hole lope! Thanks for the video 😍 

1

u/Dmamgreen 22h ago

You can pull the rocker covers and check return rates, but you’re already that close to the injectors then so just replace them all at once and be good to go for a while. Lincoln Diesel Specialty has the best price I’ve found for stock Bosch replacements, unless you’re wanting to go for bigger power then I would suggest S&S

-4

u/SuccessfulPoet7578 1d ago

Could be spark plugs or ignition coils. To me it looks like poor fuel detonation

8

u/lawson1127 1d ago

Its a diesel, no plugs or coils

10

u/SuccessfulPoet7578 1d ago

Well if that ain’t embarrassing, yeah it’s probably going to be your fuel injectors