so I have had my truck for about 2 years now. When I bought it the dealer had put a new catalytic converter in it. After about 8 months of driving it I started to make a noise when I accelerate. Now when I get on it right before it shifts it makes a weird crackling sound. Not sure if it is the cat converter but it sure sounds like it. Do you think I got a crap converter just so they could puch it out the door or does it sound like something else. Let me know what you think.

 

need more info on your truck like year,motor...etc

 

2001 supercab, 4.0L sohc, 60,000 miles, not sure what else you need but let me know