Are you suggesting replacing all of mine?

 

If there is a history of that kind of failure in the 3.5EB, I think I would. Was the stuck one a DI or a port injector? The 5.4L were all port injected.

 

I'll have more information Monday. I'm not sure which one failed.

 

Best of luck to you, Hate to say it but sometime it happens.

Many years ago my Mom had a brand new Oldsmobile for 3 days with less than 500 miles on it that did the same thing. It was the legendary 3.8 V6 that is know for being long lasting. They replaced the injector but it was left with a knock in the engine. After a month in the shop and numerous calls to GM engineering they concluded the stuck injector hydro-locked that cylinder by flooding it with fuel. You did like my Mom did which was the mistake; she kept driving it until she got to place she knew instead of immediately shutting it off.

 

So you think the last mile could have been a huge mistake? Stopping in traffic just didn't seem safe to me.

 

So the report I got was that three cylinders had misfires. We made a joint decision to change all twelve injectors. Reasoning was it was too difficult to guarantee when or if the others would fail. Some may disagree but it seemed logical to start fresh from here.

 

Thanks for the update, let us know how it all pans out.

 

Will do. It's definitely going to be 4 figures unfortunately.

 

I'm sorry this happened to you - I think you made the right call, better to be safe than sorry. Keep us posted if any further issues arise. I try not to gun it either but sometimes (for e.g. getting on the highway and @$$holes aren't letting me merge in), I feel the need to put my truck into sport mode and gun it just to merge. If that's enough to break-down my injection, well then... it speaks for itself.

 

I agree. It was enough of a punch to induce some wheel spin while turning but not violent enough to cause damage I would think. I doubt I even passed 3000 rpms. My confidence is shattered though. Going on the hook deflates confidence quickly.