CO_pathfinder

New tires, new shocks, new bushings, fresh alignment, new fluids all around, new e-brake cable and drum pads, repacked bearings. Spent so much money and so much time that I am now officially broke - and officially plan on not spending another nickle on parts for this truck ever again.

Got something like 15 driver-side injectors today from the JY @ 50cents a pop... not a bad deal. I'm going to let them soak in Seafoam to clean all of the old fuel and grease off; before I go removing my upper plenum again to replace them, is there any way to test them for quality/performance when they are outside of the truck?

Finally finally finally found a pair of 33 spline Warn Hubs. Made the mistake of buying some 32 spline's last year, and have been looking ever since. Super happy with them already, and have seen a 1-2 mpg boost over what I had been averaging for the 2 years that I've owned the truck.

Getting close to needing new tires - not what I wanted to find out, because new tires is going to require me to get the front end aligned, which is going to require brand new parts everywhere, or decent JY parts

Got mad at myself for how poorly I've treated the truck since I bought him 2 years ago. Also, turned my A/C off so that I could beat a 4Runner at a red-light on ramp. Got my ass kicked.

Well, compression isn't the issue- checked 1-5, couldn't get the hose to reach 6 so eff it. New y-pipe back exhaust, spent good money on it and the shop let their monkey do it ....... the tailpipe is a side exit, but its angled slightly forward and so it whistles on the highway . Taking that back to the shop soon to make them redo it, but I'm still not super pleased about having to make it a side exit. Positive note: trucks runs noticeably better, but the misfire is still present - at this point, I'm going to blame it on leaking injectors. Junkyard trip next week to nab as many injectors as I can get my hands on, and then to play Frankenstein. In other news, new shocks are in the works, finally, but I am still going to have to wait to replace my front suspension components because of budget restrictions. My tires are only good for another 10k anyways, so I'll worry about tires/alignment issues in the Spring. Hopefully getting fresh fluids for everything too, but still waiting to hear back from my guy on what sort of pricing he can get me. At this point, I'm trying to restore dignity to the basics of my truck before I do any true upgrades or drop large $$.

oooohhhhhhhh!!!!

Its a WD21, there's only 1 O2 sensor... Starting with Slartibarfast, leaky injectors are certainly a possibility. Is there any way to test them without pulling the upper intake to get them out? Something noteworthy: the truck does not start in 1-2 crank revolutions like it used to. It now requires me to actually let my injectors prime fully before starting. Could my fuel pump be going out (it makes a high-pitched whining noise when the truck is running) I'll pull my cap off to take a picture of it for you guys, but as far as I could tell last week when I was doing the plug change, the cap looked to be in fine condition, apart from what looked like normal carbon buildup on all 6 posts.. A far as fouling, I dont remember it looking like there was any on the plugs when I pulled them, but then again I'm pretty new to working on cars myself, so I'll have my dad take an up-close picture of the plugs when he gets home so that I can share them with you guys (I'm back in my college town) If I end up taking it in for a compression test, I'll probably be going all the way and having them work on it until the problem goes away, but that's big $$$ so obviously last resort. I'll try to keep my driving to a minimum Adam, thanks for letting me know that.

OH! And just to brag, but my ABS works now

Does anybody else's fuel pump make an audible buzz when on? Heard only from outside of the truck in the back, but def audibles. Narrowed my misfire issue down to the left bank (cyl 246), in particular, cyl 6 and sometimes 2, which means that my issue is restricted to ignition, timing or fuel problems... makes me feel a little better, knowing exactly where my misfire is coming from now. Not super sure what my next step is, but hopefully money wont be involved

Adam, thats because you have a magic 95 that likes to play nice Upon using a laser thermometer, it seems like the misfires are only occurring on the left bank (cyl 2,4,6). This was found because the manifold temps for cyl 2 and 6 were 25*F lower than the other 4 cylinders. So, that narrows it down to timing, fuel, and ignition issues on cylinders 2 and 6. Brand new plugs, somewhat new wires... would rotating the distributor fix this issue easily, or is it going to be a money gremlin that requires me to replace wires and the ignition coil? Is a trip to the mechanic for a compression test in order potentially? Also, found out through a real CARFAX that my truck does indeed only have 91k original miles!!! Not too shabby for a truck built in 9/1990. Probably explains why it doesn't have power loss, even with 2 cylinders acting up. Anyways, any thoughts or inputs are always appreciated.

I have indeed - that place scares me though, its like a graveyard.

In any case, my idle isn't great either, so it can't hurt to check them as well

More updates, because why not, it is my thread after all! Fixed the stupid vac leak that sprung up - check all the connections that you've done yourself! Clip that holds one of the older vac lines in place wasn't in the right spot, and so the hose slipped a bit and was leaking around the edges. Replaced the CTS, didn't start the truck after doing so though, because my new O2 is coming in tomorrow, and I'm just going to replace that as well before starting the truck up. If neither of those fix the misfire, I'm going to start looking at the vacuum based valve systems, namely EGR, IACV, and PCV. Here's to!

ahahahaha the vac leak was because one of the clips on the hose with the 70* bend that comes out of the intake tubing wasn't clipped in place, and so air was leaking around the sides of the connection. All fixed! (covered by the blue rag in your video above) Replaced the CTS today, O2 sensor is arriving tomorrow. Gunna replace it when it shows up tomorrow - if it doesn't fix the misfire, I'm going to start messing with the EGR, IAC, and PCV. With high hopes that all goes well, I think I'll finally have time to redo some of my light and accessory wiring thats nesting beneath my center console. Happy early Easter to all; I hope the weather remains civil for all of you!

Plug 6 successfully changed! To be honest, if not for the tightness of the space, it was almost the easiest of the 6 plugs. Also, my misfire is far more steady, and is no longer random, so I believe that I can go cylinder by cylinder to determine what the problem is, so I'm pretty sure I can figure that one out of my own. Alas, not all is well in the world of Kevin the Pathfinder. I've sprung a vac leak (go figure), but it seems like an easy fix - that is, assuming you guys know what it is based on my symptoms. It only makes the leaking sound under load, but I can audibly hear it cut out and stop leaking as soon as I take my foot off of the gas pedal, regardless of speed. I'm thinking its the IACV, butttttttt I'm not an expert. Thoughts?

Finished reinstalling the upper plenum, and plugs 1-5.. 6 is another story (when isn't it?) but I refuse to even try to start my truck before replacing that sucker... to the forum archives!!!!

It was hung up on the two coolant lines in the back that splice off of the main steel heater line, right up against the firewall - its the two that get in your way when you try to fiddle with plug #6... speaking of.... I refuse to leave it in there, so it looks like its time to McGyver some 3/8s extensions!

UPDATE #2: My injector is finally (after 2 years) fully seated. Somehow, by an act of God, at some point the injector cap sheared in half (which makes me wonder what the heck could have caused that to happen), and the injector was unseated all the way past the first seal. I replaced that seal, hammered the injector in space, and screwed the junkyard new cap in place. Fingers crossed that this fixes my god awful stumble.

UPDATE: decided to just cut them anyways. I plan to drive the tractor to the store tomorrow (hahahaha) to get a new plenum gasket and a 12" length of vacuum hose. Thanks Nissan for your excellent engineering - wish I could have cut your engineers instead of cutting my vacuum hoses

*% these vacuum hose clips in the back.. im socked in because of a blizzard, so i cant just cut them and replace them, because my truck is the only vehicle here at the moment (aside from the tractor) that could make it to the store. Mashed my thumb with a mallet too, so that doesnt help.

Having trouble getting the upper intake off, or at least lifted up high enough. Any suggestions? It seems like its getting stuck on something in the back..

Well, Im back. FINALLY replacing my spark plugs as was suggested oh so long ago, in order to try to get rid of that stupid misfire. not that it matters anymore, I realize that my truck is pretty hopeless at this point. Took it in for an alignment, knowing what the answer would be, and the guy just laughed and gave me my keys back without even putting it up on the lift. Maybe someday Ill have the money to fix ya buddy....

Or you could have done what my PO did and just pulled the bulb out..

^Sad day