Towing my jeep (about 5.5k lbs with the trailer) to Rausch Creek this weekend I noticed the truck sucking a whole helluva lot more fuel than usual. I'm talking 8-9mpg. I also noticed 1100* or so EGTs on hills. FWIW, I tow on lvl 2 or 3 usually. Never have I had EGTs over 1000 towing to Rausch. I was on 2 to begin with, when I noticed the EGTs I dropped it to lvl 1. This helped some but I was still over 1000.
I also noticed on the way home, when I got stuck in traffic, the truck almost sounded like it was misfiring. If I lugged it into 3rd and 4th slighty it sounded like a jake brake. Cool and all, it's not normal.
Any idea whats wrong? There were no CELs. Boosts fine, 20-25 psi peak on the hills. Fuel pressure was maybe a little higher than usual, but I just put a new lift pump in.
I'm at a loss. Kinda thinking it's a clogged/toasted injector. I don't know how that would over fuel though.
Today I decided to try unplugging the Edge box to see if it was the problem. No change, but a CEL came on. I will run the codes when I get a chance.
Am I right to assume it's an injector issue? I don't mind upgrading, but I want to be sure it will cure my issues.
I need to move to Illinois in two weeks. I'd like to have this fixed before that.
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Tow rig/DD: '98.5 2500 24valve, NV4500 swapped behind a 13" SBC Con "O", 4.10s, 315/70R17 MTZs on 3rd gen alloys, Edge Juice w/Attitude, BHAF, 4" MBRP etc etc.