Tiny Trucker
I'm Awesome
Lol when I read the title, I was going to say "Reverse over them to make sure!"
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If you do need to replace them, Magnaflow makes high flow replacements that seem to work well.
Meanwhile, I'd grab some of that fuel additive designed to help you pass emissions, throw it in the tank, and take the old girl on a nice long highway run. See if that helps burn off the particulates. Modern cats (ie not the old pellet type) like in your truck really don't clog up very easily and are designed to burn off buildup if it's not too bad. Most cats that fail are due to physical damage or really out of band engine conditions (eg running really rich for a really long time).
Also, make that fillup with ethanol free fuel so that you're not running rich.
Thanks, I did put a bottle of CRC guaranteed to pass in there, once I get it back together I'll take it on a nice highway trip. There is no ethanol-free gas around here in California...
It was running with a stuck open injector on cyl #8 for who knows how long before I bought it so I don't have high hopes for the cats lol. I did put a new injection spider and it runs good now so at least the cat isn't plugged, it's just unhappy. Hopefully my highway run helps, I'll report back probable sometime next week when I have time to drive it.
Ethanol free gas fuel makes your engine run richer btw
Yes, but if you have a sticking injector that is already forcing your engine to run rich, then running ethanol free fuel leans it out a bit compared to ethanol "enriched" fuel in the same conditions.