my truck just started runnin like crap bogs down smells like firecrackers i think its my cats what can i do i want to punch them out what problems will it cause

 

Why do you think it is your Cats. Are you getting any codes? Mileage? When was the last real tuneup with new wires?

 

Don't think, give us more information. What year, model and mileage, what octane gas do you run, when was it last tuned and what fault codes do you have??

 

i realy dont know when it was last tuned up but it had new plugs and wires somtime befroe i bout it at 195000 it now has 201000 its a 97 disco 4.0 i run 87 octane fuel i would like to change fuel filter also but have not look to see where it is at any help would be great thanks

 

Download the rave cd for location of fuel pump, pretty cheap to replace in a DI. If those are your original cats they are getting towards the end of their life but if they were bad you would see some sort of an O2 sensor code. They should have some some life left in them though. Also you could hit them with a mallet and see if the insides rattle. What kind of wires are on there now? OEM or some aftermarket brand?

 

ok i found out what it was it came up as misfire on cylinders 1 and 8 i cleaned the plugs they arent bad also cleaned wire ends fixed it right up im just waiting for new ones to come in i did elminate the cats WOW what a power boost how much will this effect my mpg

 

notmuchyouwillfailsmogandprobablycausethecheckengi nelighttoremainon