Hello everyone. I have been on the forum for a while. I normally check out the updates. But I am in a pickle. I have a 2011 lr4 5.0. I have owned it since 30k miles. It now has 104k miles. It was running rough so I replaced all the 100k stuff (injectors, spark plugs, coil packs, Pcv valves). Now I get a restricted performance and misfire on 3 and 7. Does anyone have and advise or guidance?

 

I was getting the occassional P0316 and P0307 on warm starts.Take a look at Service Bulletin LTB00409NAS4. Luckily, mine was covered under extended warranty.

 

Thanks for the reply. I will check it out. The problem is it was not there before I disassembled everything for the tune up. I

 

Then I would go back and double check that you have everything seated properly on 3 and 7. I know that side was a tight squeeze, sorry.

 

So I went back and pulled injectors 3,5, and 7. I tested each one with my multimeter and found injector 3 to be the culprit. Thanks for all the advise.