PathfinderJerry

OK, well I PM'ed you requesting your address so I can send them out to you, were here to help eachother so you don't owe me anything... always glad to help... let me know if there is anything else I can do... Jerry

Hey 872Door, I have a factory shop manual for my 89, should be unchanged from your 87... it has all the wiring diagrams in it so I can look them up for you for your tranny and photocopy and mail them to you (I dont have a scanner) and maybe someone else on here will have a newer manual and they can do the same for the 4 spd tranny and TCU you want to install, then you will have all the diagrams at your fingertips. I cannot offer any advice to you on the swap, but from what I know everyone else is correct in saying you will need the newer tranny TCU, and there may be wiring issues. Let me know if I can help...

Yep... I agree... check your alternator.

Hey guys I also have the FSM for 89 Pathfinders, so let me know if I can be of any assistance. Hey NWT87PATHY... I will try to help you with your issues. First of all your oil pressure sending unit is right above the starter (pass side) rear of the oil filter... don't expect to be able to see it at all unless you remove your right front tire, however it's wire has a big orange boot on it from the factory that should help you locate it if you have trouble. Your going to need a test light to check all your rear light sockets and wiring, your back up lights may not work because of the switch in the tranny, mine is a 5spd and mine work sometimes... my switch is either bad or out of adjustment... IMO I wouldnt worry about them myself. Perhaps someone has installed a trailer wiring pigtail at some point in your rear wiring and something has gone caddywhompus with that. I am on my third Pathfinder and have owned nothing but Nissans for 12 years. Email me if you have any other questions I am glad to help. I drive a truck and am gone Mon-Fri so will answer all questions on weekends. ja52999@yahoo.com Jerry

Hello guys, new person here... I have an 89 SE. Anyway I have heard that the reason why the 4-spd auto's go bad is lack of cooling, I am not sure how much truth there is to that. Was told that just because the tranny warning light doesnt come on doesnt mean that the tranny isnt running hot. Perhaps a nice aftermarket tranny cooler could cure this and would definately be worth the money when you consider what a re-build costs. Funny thing 872Door mentioned cowl grills, both of mine are broken too Anyway guys this may or may not help, but I am glad to have found the best forum on the net dedicated to the best SUV made.