Do you. Usually a problem with the ECM power relay will produce a few symptoms that can alert the driver of a problem that should be serviced. 1) It has a fluctuating idle. No… 60 Posts . 1999 Nissan pathfinder chillkoot has no power what so ever tested and charged battery tight good connections what could it be I thought starter solenoid but there no dash power or anything so that idea is ruled out SPONSORED LINKS. They changed out the MAF and its still doing it. Car: 2003 Nissan Pathfinder SE 2WD, 108k miles, Auto ... Today, while entering the highway and accelerating, the engine seemes to have partially lost power and I could go no faster than 60 mph. I'm having a couple problems with it. Nissan's vehicle has a lot of issues with the CVT transmissions. I have 0 knowledge of/with the CVT yet much with other areas given my 8+ yrs at a Nissan dealership (all prior to CVTs). We’ll cover the symptoms of when an alternator goes bad, and how to diagnose a bad one (which is really pretty easy). The most common issue we see on Nissan vehicles only affects those vehicles equipped with the CVT transmission. This article goes over common problems that affect Nissan vehicles with automatic transmsion such as Rogue, Altima, Maxima, Sentra, Murano, Frontier, Pathfinder, Cube, etc. Checked for vacuum leaks and none were found. There are 3 relays there for towing. Engine sounded normal, but pressing the accelerator did not make the engine go any faster. If the relay fails, or has any issues, it can cause the vehicle to have all sorts of problems, and may even render it undriveable. No power to trailer brake controller. 2013+ Nissan Pathfinder Tech Section. The RPMs dropped and stayed around 2000 and no weird sounds. have the same problem? Pathfinder Of The Month contest. Just purchased it 2 weeks ago but had to bring it in for service shortly thereafter. Reply. It’s pretty scary. Discussion, reviews, maintenance and more. Alternators don’t always go bad in the exact same way. It restarted after a few panicky moments of frantic key turning. The ECM power relay is the relay responsible for sending power to the ECM. But I use a small shirikan battery on my car it's about 10x3x10 and it runs my car with enough power too spare to run a 4 channel amp in my car no problem. The problem first manifested one week ago when it stalled at a stoplight. Nissan Transmission FAIL; 2013+ Pathfinder (R52) 2013+ Pathfinder R52 Engine, Driveline and Powertrain R52 Suspension and steering R52 Electrical R52 Body Interior and Exterior R52 Brakes, Tires and Wheels R52 General Chat; 2005-2012 Pathfinder (R51) 2005-2012 Pathfinder (R51) R51 Engine, Driveline and Powertrain Welcome to Nissan Club, one of the largest Nissan forum communities. Alternators don’t always go bad in the exact same way. Towing. Save Share. 2011 Nissan Pathfinder 4x4. Yes. 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