crews10 wrote:Well I guess I start somewhere until I find my problem. Thanks for the suggestions. I'll start by replacing my cat and work from there to my fuel pump and on. Going to take my boat to the lake so hope it makes it. I'll let you know what I figure out on parts. My fuel gauge reads wrong and AutoZone plugged in my obd2 and It said I need a sending unit so maybe I'll replace my fuel pump first. What's the easier way to change my pump? Pull the bed or drop the tank?
A few things here.
Don't just gut and replace parts before you do your detective work and isolate the culprit. The cat is expensive. Beg or borrow a temp gun and check it. It should be 100F hotter after, not the same or hotter before. Your trip pulling the boat will also tell the tale. That trip should over heat it and suck all the power away to the point of crippling the truck if it is a bad cat. They don't get better, only much worse if they are failing.
New clue: " My fuel gauge reads wrong "
Replace the fuel pump. Don't go cheap. Get the Delphi original replacement pump. Cut the wiring and install the new pigtail with the new connector. There is no other option. The stock connector is being blamed as part of the problem with the pump failures. They say it delivers in adequate amperage and contributes to early pump failures.
Drop the tank. Easily done. Way easier than pulling the bed on these trucks. Once you have done one it only takes a couple hours to replace one.