10. The oxygen sensors that are equipped in your Nissan Pathfinder are responsible for monitoring the exhaust to help the ECU determine the correct air/fuel mixture. We tried to lay out the most common ones above. This is very common on older cars. There are quite a few reasons why your Nissan Pathfinder could be idling rough. Hopefully, the check engine light is on. You can either go to the local parts store and ask them to scan the vehicle for you, or you can do this yourself. When stopped at a light the vehicle will rev up briefly every 30 seconds or so. Most of them will do that as a courtesy (obviously they want to sell the parts). While there are a variety of reasons your Nissan Pathfinder has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem … This information may be used by NHTSA during the investigation process. Find your perfect car with Edmunds expert reviews, car comparisons, and pricing tools. Within the last year, when cold and starting remotely the engine fires up and then runs rough for 4-5 seconds before settling down to a smooth idle. When your Nissan check engine light comes to the first step in finding why is to read the fault codes with an OBD-II scanner to retrieve the fault codes, check if a local auto part store will read the codes free of charge.. One of the most common problems that trigger the check engine light on Nissan vehicles is a loose gas cap. turned out to be a bad head gasket factory used cheap ones for a few years before they found the problem. I had a similar problem with a 1995 Nissan Maxima, and the exhaust smelled like unburnt gasoline. I pulled off and parked in a parking lot and waited for several minutes. (Page 1 of 2) We’ll cover the most common causes of rough idle below. A super lean running engine will often idle rough. Most of the time the culprit is going to be the ignition system, although there are a myriad of other causes. Once you get the trouble codes you can use that information to determine whether it’s an O2 sensor, spark plugs, coil packs, etc that may be causing the trouble. Models: 2001 Nissan Pathfinder; ... find the cause of the problem by referring to the NOTE below. The fact that you say that the dash lights flicker when this happens would throw that theory out the window and alternator issue would make more sense. By using this site, you agree to these terms: Get your Nissan issue diagnosed by a professional, Only 73,000 miles on this car; very rough idle. 1997 Nissan Pathfinder TSBs 79 Pathfinder Technical Service Bulletins. Make sure that idle speed and ignition timing are within specifications. If the clearance is out of spec, adjust it using the adjusting screw to 2.3 mm (0.091 in.) If the rough idle is intermittent or only after high idle from a cold start, chances are you need to adjust the TPS or replace & adjust TPS. The engine quits but will restart again and run fine until the next hard braking episode. Learn how to grow your business with RepairPal. Cleaning the mass air flow sensor, and a complete seafoam treatment fixed it right up. Yes you are correct a vacuum leak would cause a rough idle. I had driven some errands earlier in the day and no problems. Then the Pathfinder stalls at idle again. Conclusion. Of all the sensors equipped in your vehicle, the O2 sensors may have it the hardest. Tipically the tachometer goes crazy while this is … Having one of your own can save you a ton of time. It could be so clogged that there is not enough air getting through for quality idle conditions. Something is causing cylinders to misfire at random, which is a lot less cut and dry than a cylinder specific misfire code. When one or more of these variables is off it can lead to a rough idling condition. Technical Service Bulletins, or TSBs for short, are notifications made directly by Nissan to help automotive technicians diagnose and repair commonly reported Pathfinder problems. The check engine light will come on, and it may appear either solid or flashing. The 2011 Nissan Pathfinder problems were relatively minor, with the highest problem category focusing on the engine, with owners stating that the timing chain breaks, the car vibrates roughly at idle, and there is a loud tapping sound during startup. When spark plugs fail, the engine will struggle. The fuel injection systems job is to atomize the fuel into fine mist. An engine with a problem that is idling at 1500 revolutions per minute is far more likely to stay running than the same engine trying to idle at 800 RPM. SOURCE: 1997 Nissan Hardbody has rough idle/surges/stalls the 2001 altima is what i have and I had the same problem as you. I have a 1997 nissan pickup with a 2.4L 5speed manual. It appears to happen when the revs dip below 600 and it jumps to 900-1000 or so. Rev up the engine two or three times. Get answers from RepairPal's community of auto experts and enthusiasts. Below is a list of complaints & problems filed against the 2012 NISSAN PATHFINDER.These problems includes information received by NHTSA from consumers either directly or as recorded by the Vehicle Safety Hotline. If there is anything else that you would like to add, please leave a comment below. Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate. The 2014 Nissan Pathfinder has 4 problems reported for engine stalls/shuts down while driving. Save up to $4,947 on one of 958 used 2012 Nissan Pathfinders in Chicago, IL. When one or more of these variables is off it can lead to a rough idling condition. Alternatively, code scanners are pretty affordable. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Nissan Pathfinder bad fuel injector symptoms, Nissan Caravan Rough Idle → Causes & Diagnosis, Nissan Serena Rough Idle → Causes & Diagnosis, Chevy Impala: Brake Lights Stuck On → Diagnosis. 2001-2002 Nissan Pathfinder Idle Air Volume Learning Procedure. Seafoam and MAF cleaner should run you less than $20 at the local parts store, and should only take a few minutes of your time. Good luck!! It must be performed under any of the following conditions: Another common cause would be the Idle Air Control motor. I was driving down the highway and the car started shaking – not violently, but very noticeable – and the service engine soon light came on. Find a high quality auto repair shop or dealer near you.