Hey everyone. Always read the forums just finally joined. I hope this is in the right section. I have a 98 ram with a 318 manual. I cut my muffler off and was wondering if there was a way to stop the backfiring. I had the battery disconnected when i took it off and it only really does it when its warmed. Once its warm it does one as i shift then its like a machine gun letting off the throttle in gear. If i give it just a little gas while engine braking it stops. Any advice is appreciated

 

I don't think it should do that....... How old is your O2 sensor?

Welcome to DF!

 

The downstream is maby 2 years old and upstream is factory

thanks for the quick reply

 

Unplugging the front sensor would probably just make the problem worse..... Last time you did a tune up?

 

I just did plugs wires distributer rotor and cap and new air filter at the beginning of summer

 

So that shouldn't be a problem..... If the front O2 is original, replace it. NTK or Denso sensors only please. These trucks don't like Bosch.

 

 

Let us know if it works.

 

Will do

 

BWAHAHAHAHAAH! Man..... You mean like this?
This is just a difference in air pressure between the outside of the exhaust and the inside. My 96 is dumped after the Thrush Turbo, because I was too lazy to extend it out, and if I WOT it down the highway and let off mine will make a loud bang. Glass packs were/are notorious for popping when you decelerate while in gear. It's the same principal.