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Nissan Pathfinder Maintenance and Repair

2670 messages,  Last post on Nov 23, 2009 at 10:18 AM

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#722 of 2670 Fuel Mileage by lawsonb Oct 09, 2003 (5:28 am)
I had the same problem with my 1993 Pathfinder. At about 175K miles it suddenly started getting poor gas mileage. I also began to notice during the winter there was a heavy gas odor when the car was warming up. This gas odor only occurred when it was cold outside. I took it to a variety of dealers (Nissan and otherwise) and they could never figure out the poor mileage or odor problem. I did many of the things that have been recommended to you. (Even replaced the charcoal canister to try to fix the odor problem.) The only thing that "seemed" to help was putting a fuel additive (injector cleaner) in the tank at fill up. Since I had 2 high mileage cars, I ended up selling the 93 Pathfinder for a 2002. It was a great truck otherwise. Extremely reliable. Hope the O2 sensors fix your problem. Perhaps mine were bad, but not bad enough to signal the code. If I remember, I never had them replaced because the dealers thought they weren't bad.
#723 of 2670 woody: O2 sensors... by phil47 Oct 09, 2003 (9:02 am)
Yes they did. I have the 7yr/140,000km extended warranty, but I'm not sure if it would also have been covered under the basic 3yr/60,000km emissions coverage since I was only a few weeks beyond the 3 years (and way under the 60,000km).
#724 of 2670 v6engine by lbinh Oct 09, 2003 (2:13 pm)
That is something new, never thought that you had to change out your O2 sensors at a Nissan recommended 60K miles. Hope it works, if not check you PCV valve and hoses. Good Luck!
#725 of 2670 2001 Pathfinder Front End Problems by sallen462 Oct 09, 2003 (7:03 pm)
Hello All:   I have a 2001 Pathfinder with 51K miles. It has a 6 month old set of Goodyear Fortera tires on it (that cost me a thousand dollars). The car is regularly maintained, the tires are rotated and balanced every 7500 miles and I've had the front end aligned a couple of times...not really because it needed it but once before the new tires and of course when I had the new tires installed.   Here's the problem I'm having:   About a week ago I noticed the brake pedal seemed really soft and would go all the way to the floor when I stepped on it. The brake wear indicators did not squeak and the car has full stopping power... the pedal was just really soft.   By last weekend, it seemed to me that the front end of the car was actually lower than normal. I kept driving the car and by this past Tuesday I knew there was absolutely something wrong with the car. As I was going down the freeway at 50 to 70 miles an hour it seemed the car was actually lowering. I sorta had the sensation that I was driving on a flat or that a shock absorber (even though it doesn't have front shocks) had gone out.   I took the car to the Nissan dealership and they say nothing is wrong. They supposedly measured the cars height from the top of the tires to the wheel wells and it is perfectly level. They checked the struts and they aren't leaking and seem to have no problems. The brakes are at 50% wear so they don't need to be replaced. However, the mechanic did say the brake pedal was abnormally soft so they replaced the master cylinder.   I picked up the car today and the brakes are just like they were...the pedal goes all the way to the floor...and I mean all the way.   I still have the sensation that the car is lower in the front. I don't know what has happened but the car has a totally different suspension, and steering wheel "feel" to it. It is not like it used to be. It doesn't have the tight, "riding high up" feel...it's like a totally different automobile.   Does anyone have any suggestions? I know I'm not imagining this.   Thank you. Replies to this message: markxp (Dec 13, 2004 2:00 pm)
#726 of 2670 2001 Pathfinder Front End Problems by sallen462 by lbinh Oct 10, 2003 (7:15 am)
I also have the 01 LE. I don't have "front end lowering" at speeds problem but I notice that the left side of my car is lower by half an inch. Nissan measured it and said it was within Nissan specs. Can someone outside the car notice this, say another car traveling next to you?   50K miles does not sound extreme for new struts needed. Push on each corner of front end and see if it comes up only once. A rocking front end (either corner) means struts are worn even if no leak is found in the struts themselves. Could also be worn coil springs not keeping proper ride height.   Ask Nissan service tech to test drive it with you. Same goes for the brake pedal problem. That is a really serious safety issue. Tell them to bleed the system if not already done. Could be a lot of air bubbles in brake line (maybe leak, check fluid level). If not, tell them to adjust the brake pedal, see if that is out of spec. Good luck.
#727 of 2670 TO: sallen462 by kmrq Oct 10, 2003 (9:44 am)
Hey, like you said, out of nowhere.. one day Pathy felt like it was sagging on the front, but for me it was only driver-side. So everytime I take right-turn it felt like pathy was gonna flip over to front-driver side. By the way I have 99.5 Pathy with 52k miles... so I decide to get Heavy Duty coil springs to replaced the OEM's.. well I did get about 1/2in to 1 in lift also I've replaced the front strut with new OEM and rear shocks with Rancho RS9000x shocks. First couple days it seemed that front-sagging was cured, but nope it came back. So I was still confused, I took it to the Nissan and Inifiniti dealership, and they said my suspension was fine and height was in their spec numbers. Then I came across another pathy owner at the other pathy forum and he made a 1/4" thick fabreeka shim to insert into front driver-side strut mounts, so I got that and inserted to solve the problem. Well it didn't solved it but it helped out little. I think I need a thicker insert but the problem is that that means I needed to longer bolts on strut mount and that would be too much hassle. I guess I have to live through this front sagging problem.
#728 of 2670 Phil - 02 sensors by woodyr1 Oct 10, 2003 (8:54 pm)
Hi Phil:   I spoke to the dealer today. The 02 sensors are warranted the 3yr/60000k here in Canada. There are apparently 4 on ours, and replacement beyond warranty is about $200 each (he says this is a lowered price than previous). It is interesting as now they are an engine type warranty. On my 95 Pathfinder, they were an emission control device, warranted at least 5 years. I had two or three replaced and never spent any money. I guess the manufacturers are saving money by effectively reducing warranty claims. Nissan used to have the extended warranty pricing on the web site, but I see it is now removed, necessitating contacting the dealer.   Woody
#729 of 2670 sallen462- brakes and suspension by xplorx4 Oct 10, 2003 (10:02 pm)
Your spongy brake pedal problem could be due to air in the brake lines or a rubber brake hose that is close to failure/rupturing. Like lbinh advised, bleed your brake lines, or have a shop do it for you. Also be sure to check the condition of the rubber brake hoses everywhere on the braking system. If any hose ruptures, you'll lose your brakes. Also check for fluid loss in the brake reservoir, which would indicate a leak.   Your suspension problem could be merely perception... How long have you noticed this issue, and have you modified anything on your truck (i.e. new tires, springs, shocks, seat adjustments, brush guard, etc.) immediately prior to noticing it? Under what conditions does your truck feel "lower"? Only when stopped? When driving? What speeds? You could try adjusting your rear view mirror so that the horizon is at a particular height in your rear window, and drive a while at different speeds to see if the horizon moves up or down significantly. Naturally, this assumes you evaluate on a level road for several miles.
#730 of 2670 roof rack question by kamaboko Oct 11, 2003 (3:11 pm)
hi, considering a 93 PF SE. i need to put a rack on it though that can support a 14 foot ladder. any suggestions?   thanks, k
#731 of 2670 woody: O2 sensors by phil47 Oct 12, 2003 (9:56 pm)
youch...$200 a crack. I just checked my extended warranty (7yr/140,000km). It includes O2 sensors. According to the dealer, our high sulfur fuel in N.A. is killing these O2 sensors quicker than overseas.

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