Cutting out cat on 01 ram 1500

30

Asked by Jan 08, 2016 at 09:10 PM about the 2001 Dodge Ram 1500 2 Dr SLT 4WD Quad Cab SB

Question type: Maintenance & Repair

Has anyone done this? If so how?? Haha what do I
do about the up/down flow sensors?? What are the
risks? I have heard fuel econo down the drain  
etc....

14 Answers

130

Recipicating saw. Sounds good. Loss of power do to back pressure. Good mufflers fixes that. Won't hurt it

Best Answer
89,005

The engine is not designed to run without the catalysts, but you can change the catalysts to high flow models, that way you won't have to bother with reprogramming the computer to delete the downstream O2 sensors, or you could just buy the downstream O2 sealed bungs and cap them off, and run a straight pipe where the cat normally fits. A lot of 4X4 guys around here run them in their off road rigs with late model powertrains.

63,245

Removing the catalytic converter is illegal in all 50 States. In addition your check engine light will constantly be on. HTH. -Jim

30

Well I'm in Canada. Haha sure it illegal here too... but I'm a single mom of two. Can't afford the new cat. I'm a welder by trade.. so figerd I could save some coin by cutting it out. But only if it doesn't make it worse? The 02 sealed bungs? What?? Lol sorry. "Lame man's " terms please? Hahaha

89,005

It's called a O2 simulator, I just couldn't think of it last night.

52,685

The sneaky way to deal with a bad cat is to take a pipe and breakup the insides and empty the cat out and then re-install it.

130

Full is right gutting the cat work. Hammer the fiber glass out of it. The only o2 you have to worry about is on the down pipe or manifolds. Rear o2 just for global warming ... It's cold outside now. Got ER done;!!

130

Welder.. Torch it . It's faster sleve the pipe.

30

Did it. Cleaned out cat. Welded back together. Truck is still back firing when idling... burning rich. All I can smell is fuel. Loss of power. I'm ready to burn this thing! I have changed the up flow o2 sensor. The crank sensor.. now what? Map sensor? Cam sensor? ? Please help me...

89,005

What codes are you showing? It is possible that you need a live data scan tool so you can compare readings the sensors are showing to what the specs are. It could be a sensor or ECM ground problem. HTH

30

Ohhh. Ok yeah. My friend has a code reader. Only code coming up is some evap code. Somthing to do with my a/c. Haha... don't think that's it. . I dont have much money to throw at it.. so going to try plugs n wires... I have vid of what is doing.. but don't think I can share on here. Thank you though! !!! :D

89,005

Evaporate code has to do with the fuel tank venting system, if it is stuck open it could be sucking in raw fuel if the tank is full, block it off temporarily and see if it clears itself out.

1998 dodge ram replaced spark plugs,wires ,rot button,dis cap,oxygen sen,and coil. .drive it maybe 17 miles starts missing and backfiring any suggestions stops after I punch it to the floor lol a little bit later does it again sometimes not

89,005

Janet, you will get more response if you post this as a new thread, that being said, that sounds like something is messing with fuel trim, a data scanner with live and freeze frame data would ideal to help diagnosis this problem, that way when it starts acting up you could actually see the readings and freeze the frame so you could track down the readings and find the affected system. As a guess I would start with systems grounds, making sure they are all clean and tight, pay close attention to sensor and computer grounds, it only takes one small wire to really cause some problems. HTH

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