Obviously a little windy. I would say pay very close attention to the battery terminal and the clip which plugs into the alternator. Those wires are right next to the exhaust manifold. They get hot, old and brittle. Trace those back into the wiring harness and splice up around the top of motor. Use butt connectors and heat shrink insulation. This two wire clip is what excites the alternator. If the wires are bad, you will draw too many amps and eventually short out the exciter. Total time for me to replace the alternator and splice in a new plug, 1 hour 45 minutes. I am not a professional mechanic but I certainly have the tool chest of a mechanic.
Hey man how's the alternator holding up my girl's car has done had 3 alternators I purchased the fuse block and going to change the alternator plug out the last alternator I changed out had oil from the valve cover was leaking inside the plug on the alternator. Her car acts like it has some sort of electrical short
@@marksmithwick2503 Most of the time, the ground issue is under the battery tray. Definitely replace the valve cover. It seems to be the start of the issue. Plastic Renault crap. Mine leaked as well so I replaced it. You will need to check all ground points. Remove the wires, clean the point of contact, and re-connect.
@@marksmithwick2503 Also, the ground wire under the battery tray goes all the way to the CVT. You will ned to clean that connection as well. There are two more grounds under the dash. Removal of the gauges is pretty straight forward. Yea, I know, takes a ton of time. But ion you pull it off on one sunny Saturday, your girl will be impressed. Once you get it all cleaned up, run the car. The tell tell sign that the alternator is going bad is while idling, the dome and dash lights will slightly pulse. If you get everything right, they will shine brightly with no pulse. This car I sold 2 1/2 years ago and haven't heard back about any problems.
Il have my new alternator plug in Wednesday but I was just looking at it with the battery still in the car the main ground wire coming off the battery is grounded to the side of the frame by itself so I'm thinking someone broke or never replaced the ground wire the connects between there and the bracket that has the body ground do u think that could possibly be the problem
@@marksmithwick2503 I cannot stress enough how important good ground connection are. Without a picture, I cannot tell. But you must pull, the battery, the battery tray and check the ground wire coming off the CVT.
How do I find the 4 wire plug at auto parts stores? Because my pigtail plug melted and crumbled but every auto parts store I've been try to sell me a 3 wire plug that doesn't fit
You have to have the alternator tested. You can do this very easily by starting the car and disconnecting the battery. If the car still runs, alternator good. If the car dies, then the alternator is either bad or the magnetic field is not getting excited. That is my understanding. Now, the interesting thing about Nissan and the murano ECM is that it periodically excites the alternator as needed ........ but only after you drive for about 8 miles. Aftermarket alternators are crap. If you get two years out of one, consider yourself lucky. I went with an OEM and then ended up selling the car about a year later. Apparently, there is a trick to take the ECM out of play. I read about it online and didn't ever try it. In my video, I replaced the plug in as shown and cleaned up all connections and grounds. If you disconnect that plug, the alternator will simply stay in charing mode and never shut off. According to the forum online, this will make the alternator last longer and start charging the battery instantly when you start the car. The problem seems to be two fold, those wires that excite the alternator are too close to the exhaust manifold and get weak. Aftermarket alternators do not respond well to intermittent charging cycle induced by the ECM. basically, Nissan won't do anything and you have to make the decision for yourself whether you want to keep replacing aftermarket alternators, buy an OEM one, disconnect the ECM or sell the car.
Obviously a little windy. I would say pay very close attention to the battery terminal and the clip which plugs into the alternator. Those wires are right next to the exhaust manifold. They get hot, old and brittle. Trace those back into the wiring harness and splice up around the top of motor. Use butt connectors and heat shrink insulation. This two wire clip is what excites the alternator. If the wires are bad, you will draw too many amps and eventually short out the exciter. Total time for me to replace the alternator and splice in a new plug, 1 hour 45 minutes. I am not a professional mechanic but I certainly have the tool chest of a mechanic.
Hey man how's the alternator holding up my girl's car has done had 3 alternators I purchased the fuse block and going to change the alternator plug out the last alternator I changed out had oil from the valve cover was leaking inside the plug on the alternator. Her car acts like it has some sort of electrical short
@@marksmithwick2503 Most of the time, the ground issue is under the battery tray. Definitely replace the valve cover. It seems to be the start of the issue. Plastic Renault crap. Mine leaked as well so I replaced it. You will need to check all ground points. Remove the wires, clean the point of contact, and re-connect.
@@marksmithwick2503 Also, the ground wire under the battery tray goes all the way to the CVT. You will ned to clean that connection as well. There are two more grounds under the dash. Removal of the gauges is pretty straight forward. Yea, I know, takes a ton of time. But ion you pull it off on one sunny Saturday, your girl will be impressed. Once you get it all cleaned up, run the car. The tell tell sign that the alternator is going bad is while idling, the dome and dash lights will slightly pulse. If you get everything right, they will shine brightly with no pulse. This car I sold 2 1/2 years ago and haven't heard back about any problems.
Il have my new alternator plug in Wednesday but I was just looking at it with the battery still in the car the main ground wire coming off the battery is grounded to the side of the frame by itself so I'm thinking someone broke or never replaced the ground wire the connects between there and the bracket that has the body ground do u think that could possibly be the problem
@@marksmithwick2503 I cannot stress enough how important good ground connection are. Without a picture, I cannot tell. But you must pull, the battery, the battery tray and check the ground wire coming off the CVT.
By any chance do you remember the original colors of the cables and where exactly they go on the connector? Thanks in advance
How do I find the 4 wire plug at auto parts stores? Because my pigtail plug melted and crumbled but every auto parts store I've been try to sell me a 3 wire plug that doesn't fit
I bought a 4 wire plug off eBay then used the two appropriate pins.
Question: do those fuses keep the PCDM from sending the 5v signal? That’s my issue as the alternator no longer runs.
You have to have the alternator tested. You can do this very easily by starting the car and disconnecting the battery. If the car still runs, alternator good. If the car dies, then the alternator is either bad or the magnetic field is not getting excited. That is my understanding. Now, the interesting thing about Nissan and the murano ECM is that it periodically excites the alternator as needed ........ but only after you drive for about 8 miles. Aftermarket alternators are crap. If you get two years out of one, consider yourself lucky. I went with an OEM and then ended up selling the car about a year later. Apparently, there is a trick to take the ECM out of play. I read about it online and didn't ever try it. In my video, I replaced the plug in as shown and cleaned up all connections and grounds. If you disconnect that plug, the alternator will simply stay in charing mode and never shut off. According to the forum online, this will make the alternator last longer and start charging the battery instantly when you start the car. The problem seems to be two fold, those wires that excite the alternator are too close to the exhaust manifold and get weak. Aftermarket alternators do not respond well to intermittent charging cycle induced by the ECM. basically, Nissan won't do anything and you have to make the decision for yourself whether you want to keep replacing aftermarket alternators, buy an OEM one, disconnect the ECM or sell the car.