I've got a 95 12 valve cummins with 197000 kms on it, 2 months ago I put a 4 inch turbo-back flo pro exhaust, eliminating all the emissions stuff. I've recently noticed a creosote-like build up on the tail pipe, and it keeps getting louder and louder. I'm not sure what's going on, any insight boys?

 

*in the tailpipe

 

Leaking turbo seal or lots of short trips where the engine never warms up?

 

I'm very guity of this one....I'm going to reck my motor yet,going every morning for a coffee...

 

Thanks, ya the motor has a hard time warming up when it's minus 30 outside... All. The. Time. Haha

 

Yeah, if the engine never warms up good it won't burn all the condensation that builds up in the engine.
The moisture mixed with soot turns into black goo.
Taking the truck for a good run every couple of weeks would be good for it.

 

Got the winter front on?? At -30 it takes a few miles to get it even close to operating temp...Heard it's been these temp in nortern Alberta..around ft Mac

 

Thanks guys for the help, headin down from fort St. John to penticton Friday, so that should be a good 1200 km journey for it. And my winter front is cardboard for now lol

 

Carboard is what I use......Have a safe trip...

 

Use a block heater as well before heading out and that will help to minimize that buildup since it should keep your coolant at a toasty 80-100F and that in turn will also tend to warm by convection the oil and trans fluid if you run an automatic.