What will cause a catalytic converter to meltdown twice?

I own a 2011 ram 1500 5.7 Hemi dual exhaust pipes. Do anyone know if the catalytic converter(s) are welded on or clammed on? My truck is puttering when I take off and someone told me its the catalytic converter going bad. I have no check engine light on currently and its been doing this for...

I have a 1999 Dodge Ram 2500. If we remove the O2 sensors from the front the truck will start but run really bad. If we leave them in, the truck will not start at all. We know that there is an O2 sensor after the catalytic converters but we have not been able to locate it. Please help...

A follow up question to my last post. It is possible to have a plugged/restricted Catalytic Converter without any check engine lights or codes present? Poor acceleration/lugging at 40 mph plus. Thanks. 2007 Dodge Ram 1500 5.7 Hemi 45K miles (not driven a lot)

Hey all I'm thinking of deleting my converters to get a bit more volume from exhaust and to allow a bit of a better flow. just wondering if anybody else has done this and how it turned out.

Hi, I've got a '97 Ram 1500 with the 5.9 Magnum. I live in California and need to get this puppy to pass smog. Among the many things I've done is replace the Catalytic converter, O2 sensors, headers, and muffler. Sounds great and runs great. I cleared out the ODB codes, but how do I get the...

Friday I drove my truck to work and back home everything was good. Saturday morning i went to start it and it took about 5 seconds of cranking then started up. I started down the road and its stalling at 2500 rpms. I drove it to my stepdads house about 2 miles away and back home and parked it...

So, I'm not really a "truck-afficionado" but I really love my truck. I don't know a lot about it and am not a "do-it-myself" kinda gal. I'm just having this one, really weird, really major issue with it, and I have no idea what's wrong. After I turn it off, especially if it's hot outside or...

Hey guys, here goes my first question, brand new to the forum even though I've been reading it all the time. Today I found my radiator had nearly nothing in it which was causing overheating while stopped in traffic idling. Filled it up again with water because I'm flushing tomorrow and bled the...

I recently purchased a 1999 Dodge Ram 1500 with the 5.9 and I am having some trouble. I know, according to the PO, that the catalytic converter is clogged up (possibly due to the dreaded plenum-gasket problem?), it has had the transmission rebuilt, and the truck has been "deathflashed". Is the...

Hello All! Gkad to be here. I have an issue with mt 2005 Ram 2500 ST 4x4 Quad cab 5.7 Hemi. Hopefully somebody can help. When driving down the road, say on the highway, when I come to a hill(even a small one) I have to press on the gas pedal alot to get her to kick down. Even when I am in cruise...

I have a 98 ram 1500 with a 360 that needs a new exhaust. I plan on making it into a true dual, I figured out how I'm going to run it and what mufflers I'm going to use but I'm unable to pick the right cats for my truck. I'm looking at flowmaster and magnaflow cats and they offer quite a...

Hey guys, I have an '04 with a few mods,(K&N CAI, Dal exhaust, and long headers). Recently i bought the Superchips Cortex Tuner and uploaded the 87 octane tune, soon after i got the P0420 code for the Catalytic effiecency Bank 1. i only have 68,000 miles on the truck so i wold be suprised if...

I have a 2007 dodge ram 4X4 with the 5.7 hemi. I put a magnaflow single to double muffler on it with stainless tips, but I want to make it a little bit louder. I had the two mufflers in the rear removed, but there is what i believe a third muffler right under the passenger floor, I want to...