Outwash

I am getting a strong surfurous smell from the exhaust after I have driven the truck for at least 20 minutes. It is a 4x4, V6, 86,0000 mile. I just changed PVC value, plugs, cap, rotor, new exhaust including Cat converter, and O2 sensor. I never smell this on other vehicles. It starts and runs great. I get 19 MPG. Should I worry!!! Any Ideas!!!!

88pathoffroad

A sulfur smell from the exhaust means the catalytic converter is either shot or trying to cope with an excess amount of unburnt/partially burnt fuel being sent through it.

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'88 Pathfinder: 6" of lift, 33x13.50 Swamper LTB's, Rancho 9000's, L&P Stage 3 steering system, K&N, Pacesetter headers and 2.5" exhaust, Lock-Right locker, 110A alty and electric fan swap, dual batteries, 700W+ worth of PIAAs, etc.