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Nissan Pathfinder Owners Care & Maintenance

450 messages,  Last post on Feb 19, 2009 at 7:15 PM

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What is this discussion about? Nissan Pathfinder, Auto Body, Engine, Interior, Oil, Paint, SUV

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#401 of 450 Re: 2002 Pathy 60K schedule maintenance info needed [pathstar1] by steve_ HOST Jul 24, 2006 (8:58 pm)
Replying to: pathstar1 (Jul 24, 2006 8:34 pm) Right, mine's the 3.3l VG33E - I thought there was an E in there somewhere. Supposedly the VG33E was used in earlier Pathfinders. The VQ is sometimes called the world's benchmark engine, but because it doesn't roll off the tongue like "Hemi" it doesn't get enough respect, unless you follow Ward's annual list of the 10 best engines.   I'm afraid to ask if the VQ is an interference engine in the Pathfinders from 2001 onward.   I'll reply to the CSR email.
#402 of 450 Fuel Filter Replacement by shark715 Sep 10, 2006 (3:09 pm)
I have an '01 PF with 106K miles and have never changed the fuel filter. The factory service manual does not recommend the replacement of this filter at any specific mileage nor time. It just states "when the filter becomes clogged, the vehicle speed cannot be increased as the driver wishes, in such an event replace the filter". It looks like replacing this filter is fairly straight forward, except the manual says you need to pull the fuse for the fuel pump and then crank the engine 2 or 3 times to release all the fuel pressure. Has anyone here replaced their own fuel filter on a Pathfinder? Is the job as easy as it seems to be? What keeps the fuel from draining out of the tank while you have the filter disconnected from the fuel line (looks like the filter is lower than the tank itself). Thanks in advance for your help. Replies to this message: pathstar1 (Sep 10, 2006 7:39 pm)
#403 of 450 Re: Fuel Filter Replacement [shark715] by pathstar1 Sep 10, 2006 (7:39 pm)
Replying to: shark715 (Sep 10, 2006 3:09 pm) I like to use a small clamp to pinch the fuel hose on the tank side. Haven't had to do it on my Pathfinder yet, but I have on a few other vehicles.
#404 of 450 front driveshaft grease fitting by smokey75 Nov 30, 2006 (10:29 am)
I have a 2001 PF with 83,000 miles. I've always greased the one and only fitting on the front driveshaft but it has never seemed like it took any grease. It almost seems like it just squirts out around the fitting. 1) Are there different types of fittings and could my grease gun have the wrong one? 2) If I haven't been greasing it what damage could this do & what symptoms might it cause? 3) How much grease should you give it on a regular basis and if I haven't been getting any grease in how much should I give it now. 4) Is it typical for grease in a grease gun to seperate and a yellow liquid to leak out of the grease gun? Thanks... Replies to this message: shark715 (Nov 30, 2006 10:59 am) pathstar1 (Nov 30, 2006 12:29 pm) shark715 (Nov 30, 2006 12:52 pm) smokey75 (Nov 30, 2006 1:03 pm) pathstar1 (Dec 01, 2006 9:31 am)
#405 of 450 Re: front driveshaft grease fitting [smokey75] by shark715 Nov 30, 2006 (10:59 am)
Replying to: smokey75 (Nov 30, 2006 10:29 am) Smokey, I have the same truck with 107K miles. The fitting could be defective and not opening up to allow grease in. The reason it needs grease is that the splines on both portions of the driveshaft slide against each other because the driveshaft needs to lengthen and shorten as the rear suspension moves up and down. I'm just guessing, but it seems to me that you need not worry about over-lubricating it...any excess grease will merely drop off. So far as potential damage goes, once again I'm just guessing, but I would say that without lubrication the drive shaft would not lengthen and shorten as smoothly as designed. I would also guess that this could damage the u-joints and/or the transfer case output bearing as well as the differential pinion bearing if it got bad enough. I would also guess that unless you've driven your truck in shallow water at some point, there is probably enough lube still on the splines to prevent this from happening...but I take no responsibility if I'm wrong
#406 of 450 Re: front driveshaft grease fitting [smokey75] by pathstar1 Nov 30, 2006 (12:29 pm)
Replying to: smokey75 (Nov 30, 2006 10:29 am) There are metric and SAE "zerk" fittings (grease nipples). You will have more luck with a metric fitting on the grease gun. I bought mine at an auto parts supplier.   Grease is oil held in a jelly. It will separate over a period of time. That is how it lubricates. It's really oil lubrication held in jelly for "timed release". Nothing to worry about - it's normal. My guns leave little puddles of oil where I store them. I say "guns" because one has molybdenum grease, one has teflon grease, and the third has a special waterproof grease for my motorcyle swing arm.   If you can't get any grease in the fitting, just smear some where the spline shaft goes into the rest of the driveshaft. It doesn't need a lot. If you ford streams a lot you want to be greasing it a lot, but for most of us, these are "main street" 4WD vehicles and don't require a lot of greasing.   I grease mine successfully per the maint. schedule and have a nice coating of grease on the underside of the body in line with the part of the shaft where the spline goes into the rest of it.   If you get a grease gun end that will work, pump it until you see a little come out at the spline junction, or three or four full pumps, whichever is less. There is no seal involved that you can damage with too much grease. Replies to this message: shark715 (Nov 30, 2006 12:52 pm) smokey75 (Nov 30, 2006 1:03 pm) pathstar1 (Dec 01, 2006 9:31 am)
#407 of 450 Re: front driveshaft grease fitting [pathstar1] by shark715 Nov 30, 2006 (12:52 pm)
Replying to: pathstar1 (Nov 30, 2006 12:29 pm) Pathstar, thanks for the insight on how grease works...never knew that, makes sense!
#408 of 450 Re: front driveshaft grease fitting [pathstar1] by smokey75 Nov 30, 2006 (1:03 pm)
Replying to: pathstar1 (Nov 30, 2006 12:29 pm) Thanks for the help... both of you. I only have one gun with moly that only gets used for this. Do you think after five years of seperation it's still good? Ever need to replace it in the gun just from aging? Replies to this message: pathstar1 (Dec 01, 2006 9:31 am)
#409 of 450 Re: front driveshaft grease fitting [smokey75] by pathstar1 Dec 01, 2006 (9:31 am)
Replying to: smokey75 (Nov 30, 2006 1:03 pm) Well, if the grease is no good after five years mine is really no good as it's over 15 years old! Squirt some on your finger and see if it still contains oil. If not, it's no good. I suspect it's still good for many years to come.   BTW, molybdenum grease contains molybdenum disuphide (fine powder). It's there in case the grease dries out, in which case the powder gets forced onto the metal surfaces when they rub together under force. This is also a good lubricant. It actually bonds to the iron, giving it permanant emergency lubrication (until it sees forces high enough to melt the steel that is).
#410 of 450 Extended oil interval - bad oil analysis by smokey75 Dec 08, 2006 (12:43 pm)
I have a 2001 PF & have been using Amsoil 5w-30 synthetic for two years now with 1 year oil change intervals. I have also used Amsoil oil & air filters. Prior to this I used Mobil 1 with 3 month change intervals. I'm not happy with the oil analysis I just received from Blackstone Labs after one year and 15,772 miles. Here are their comments:    This oil was in use for too long a distance for this engine to handle as can be seen by the higher than average amount of wear metals (Iron 35ppm). The TBN was 0.0, showing no active additive in the oil. Silicon at 44 ppm is either from a silicone-based lube/sealer/gasket or it is dirt getting past the air filter, so check that out. Oil viscosity was higher than normal due to extended use. We suggest a 7500-mile oil change to help improve wear and check back to see the results.    Anyone know of a silicon-based lube/sealer/gasket on the PF that could be causing the high silicon reading, or is it likely from dirt. What do you guys think about all this? Anyone else used extened drain intervals?

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