Curt

I would like to start by saying thanks to everyone who gave me suggestions. I ended pulling the injectors and found a shop that would pop test them for free, they weren't up to standard so I had them rebuilt and my problem was solved. Moparman I will be in contact to help the cause when I am able very soon

I put about 100k on this truck since i have had it and haven't did anything with the injectors if I pull them how do I tell if I have a sticking one or a faulty one

r u saying put a compressor on the lines at the transfer pump pushing air towards the tank to look for a leak?

I don't have the tools to check fuel pressure and I did have issues with starting in the morning before the transfer pump was replaced but now it starts easy. There is no codes

I have a 1998.5 5.9 24 valve dodge 2500 diesel. Recently had the transfer pump replaced then right after it started having a bad/missing idle in park but only when truck is warmed up. I replaced O rings between transfer pump and oil filter housing, changed fuel filter and cleaned air filter. Any suggestions on the bad idle?