So I have the code P0174 which I know means it’s running lean in bank 2, cylinders 4-6, it had a misfire in cylinder 5 but I replaced spark plugs and injectors and that code went away. Still idles rough but I give a little gas to about 1000-1200 rpm and it’s perfectly fine. I’m thinking a vacuum leak and I found a broken line coming from the cab to the vacuum reservoir and I’m just curious if it’s possible that’s causing the rough idle? I’m going to be replacing that hose along with fuel filter and intake manifold gasket this morning just to see if that has been the issue and if not just some maintenance. If anyone knows if that hose on the reservoir could be causing the rough idle I’d appreciate the information! Any other ideas I’m all ears before I quit and take it to the shop but I have too much time and energy invested. Wanna see this through, let me know if you have any thoughts to help, much appreciated.

 

Rough Idle Solved!

May have been a vacuum leak but I also did the following fixes at the same time so may have also been one of those:
- changed dirty air filter
- reset computer by disconnecting the battery for several hours
- cleaned carburetor
- sealed two leaky vacuum hoses at their quick connects
- replaced water temp sensor