Most common issues in 86.5-89 WD21 Pathfinders Posted November 6, 2019 I bought my 88 pathfinder brand new and still own it today. Look for rust under the hood near the vapor canister and ignition coil area. Also I had to replace the power steering high pressure hose twice over the last 31 years. Oil pressure switch is most likely the cause of most oil leaks, it is simple to replace. Front disc replacement is a big pain since you need to repack the hubs when you replace them. My 88 is a standard shift so I have to replace the clutch twice, not bad for 31 years of uses. Also look for rust on the door near the windows weather strips, it seems water likes to sit there and eat at the metal. I have a 2 door pathfinder, I do not see many of them around and I usually get offers on it monthly even though I do not have it for sale. I did convert the old R12 A/C to the R34 system. Pretty simple to do, only cost me $325 in parts from RockAuto. I wish I had a better cool air intake system for it but I happy with how it still drives. Weekend fun machine now.