Ever since I bought my runner the exhaust smells. It gets good gas mileage, the tailpipe isnt black but it smells strong. Any idea on a fix? I'm thinking about running seaform through it. Its bad enough that I roll my windows up at a stop light if I'm there long.

 

What does it smell like? Smoke, unburned fuel, etc. will have different smells and different fixes.

 

Rotten eggs?

 

like a gas. but not from the pump. it smells normal. but its very strong. for example if you l parked a car in a garage and then smelled. just real strong.

 

Is your engine burning rich??

 

My '91 slowly lost mpg down to 12 before it finally threw a code for the o2 sensor --- there was a very strong gas smell the whole time.
After replacing - mpg jumped right back up to 17-18 without the gas smell.

 

are you smelling it when the engine is cold?

 

Maybe your cat is failing.

 

I get sort of a rotten egg smell when the back window is rolled down.

 

if you smell rotten egg's i'd say its the cat.

 

x2 on the Rotten Eggs smell...mine did the same thing, changed out the cat and no green eggs and ham!

 

valves adjusteg to tight runs rich smell burns eyes its my guess
yota

 

on my runner im thinking about just gutting out the cat, I live in Arkansas so we dont have emissions and all that good junk. On my little dodge I had i took the cat off all together and just put a straight pipe in its place. gave the truck a nice little rumble