Post by
Sanelson76 »
https://forums.nicoclub.com/sanelson76-u269740.html
Mon Nov 21, 2016 8:12 pm
Hello everyone,. I've been reading and realized that mutual owners may have experienced the same things and I appreciate any and all input. I recently purchased a 01 pathfinder. My buddy I bought it from was up front about everything. Was purchased at auction and was a seized vehicle and had been sitting up for at least a year. He changed the alternator, added some seafoam and it was running well. Then he started have idle control issues. After investigating, he found the spring in the idle control valve was broken. Before purchasing, I brought it to a mechanic. After a brief looking over and test drive, his experience led him to believe that there were no major issues.
I ordered the parts, changed it and now it won't crank. It turns over, but will not fire up. Checked fuel system, relays, and spark plugs. Changed the fuel filter that plugged up probably from all the crud that loosened up after driving it a while after adding seafoam.
I put a code diagnostic machine on it and cleared all codes. Still didn't crank. So went looking at what those codes were. There were all having to do with position sensors. Pulled cam position sensors. They were caked up with gunk about an inch thick. Then I measured resistance on the sensor and it was in correct range. I moved on to crankshaft position sensors, they too were similarly covered with gunk. I ordered new ones and haven't gotten back to the truck yet. I cleaned the sensors up and will reinstall tomorrow, but could that be the issue. What haven't I tried? Thanks in advance.