lookingatyou2013

The leaking of coolant from one compartment to another is seepage failure of this thin preformed O ring type gasket. About 3 years ago i found coolant was getting sucked into the Idle Speed Control Solenoid chamber (i know that's not the name Nissan gives it (Idle Air Control Valve IACV) but it is better suited for the description) causing corrosion on the brass seating point for the solenoid plunger. Causing idle issues. I guess I was l lucky to catch it before it had chance to short out the solenoid and then the ECM.I cleaned everything up including the brass seat area, installed a new seal and all worked for about 3 years. Just last week the pathfinder woulndt start unless i open throttle more..it appears coolant is once again seeping into the wrong part of the chamber, After driving for a few blocks all appears to work ok and the car idles fine and restarts fine. But im guessing after i park it again and pressure from the cooling system once again will push coolant into the chamber past this faulty wimpy seal causing issues at next startup. Since aside for this leak everything runs very smooth for a 2002 pathfinder with 197k. This nissan has been a better vech than my Honda accord and Toyota van.. So when i get some time im going to do the bypass of the 3/8 coolant hose since i dont live in freezing area. oh, ive heard from this leaky seal coolant can sometimes ALSo be seen leaking outside and can get the electrical connector to the IACV, even though the connector should be sealed and not allow liquid in perhaps with age it can.