Postby Merrix » Thu Jul 06, 2017 7:19 pm
I'll start off with a back story. I have a 97 Pathfinder with 188K miles and for the past 6 months or so, I've had a hesitation under load between 2000 and 3000 RPM. The hesitation wasn't severe but definite power loss. It feels like I'm letting off the accelerator and pressing it back on gently. After plugs, wires, cap, rotor and fuel filter the symptoms lessened but still there. Couple weeks ago I was planning on a road trip but had decided to turn back 10 miles into the trip after the highway hesitation turned into what feels like a misfire. After a couple more days of driving around town, I now have a rough idle and at times the engine will stall completely at a stop. While the engine was cold yesterday morning and this morning, I was getting white/blue smoke and smelled of raw fuel and after a quick hard test drive with barely diluted seafoam in the tank, I was getting more of a black/blue smoke and raw fuel smell at a rough idle.
I have no check engine light and nothing apparent under the hood. I have yet to do a full inspection for vacuum leaks. I took the EGR valve off and sprayed it down with brake clean but nothing more since I'm not too familiar with how the valve works. All hoses on the valves are attached and in good shape. I've researched distributors are usually the issue with my symptoms.
Any and all advice would be greatly appreciated. Thank you