I'm in aftertreatment homeschool

[Rawze]

== YES you need to do a full EGR tune-up on it, and not just replace the IMAP once in a while. Should be done about once a year actually, and more thoroughly every 2-4 years. Watch my videos on it .. and adapt the ideas for your particular engine model.


Looks like you also need to start investing in proper tools instead of "pipe wrenches". here is what is needed for those pipe fittings if they have been over-torqued by dsome idiot in the past...
ref: https://amzn.to/3M7oTYC

And here are a lot of other tools and things that I recommend .. and no, it is not because I get sponsiorshi$ts on it.. it is legit stuffs that I either own and use a lot, or have/would use on my own truck...
https://www.amazon.com/shop/rawzescollec...ons_list_d

And a good set of impact/ hardened 6-point metric sockets that will not strip bolts, and a very good set of 6-point wrenches. - Never use the cheaper, or typical garbage depot, 12-point sockets on a commercial engine!.. Throw them away and buy better tools!>