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Discussion Starter #1
Replaced alternator last weekend. Driving the highway at 60 mph when I lost driving power. ( Mph and rpm holding steady but could feel Murano dropping speed) get over to the shoulder and it stalls. Try to restart and it makes an err sound. Radio and all lights work. Got it towed and friend came over to hook it up to see what's wrong. No codes! Help!!!
 

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Sounds like the alternator is a dud and went bad. Drained your battery enough to cause your problems. Put your battery on a charger and try to restart. If it does, get the alternator checked out at a parts store.
 

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Define "no luck."

Turns over but doesn't start?
Turns over, tries to fire but won't start?
Does not turn over?

Other variations? We have insufficient info. Please be as descriptive and thorough as possible.
 

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Discussion Starter #5
Tries to start but wont turn over. Like it's not getting spark. Spark plugs are good altenator and battery are good
 

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So...the engine won't turn over? If it isn't turning over, doesn't matter if it has spark or not...it's not going to fire up. Describe a little better what is happening after you charged the battery and tried to start it.
 

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"Tries to start?" That's hard to interpret.

How can you tell? Do you hear a clicking solenoid? Maybe it clicks but won't turn over? Be specific, please.

My guess is that the battery is dead. Here's what I'd do:

1) Check voltage in the battery with a multimeter (cheap, get one at Home Depot or Ace Hardware, you need it around the house anyway) and see what the voltage is between + and - battery terminals. If under 12V, the battery is partly discharged and may not be sufficient to start. If under 11V you can bet it won't start.

2) Put a good battery charger on it and bring it up to full charge, which will show on your meter as around 12.4V.

3) Start the vehicle, and immediately use the meter to check voltage between + and - terminals. This measures the charge coming from the alternator, not from the battery. If it's less than 14V your alternator is not charging correctly. I say do this immediately, because your Murano is smart enough to drop the charging voltage as the battery approaches full charge. You want to check while the car is still recharging the power used in starting.

All of this is simple to to and only takes overnight, only because it will take 12 hours or so to charge a depleted battery.
 

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Did you figure out the problem?
Mjtwhaven,

You're resurrecting old threads initiated by posters that will never respond. Why don't you explain exactly what is going on with your car, what the symptoms are, when it started, and what's been done by you or a mechanic to find the problem and people that lurk these forums may try to help you. Other details such as any recent repairs, aftermarket upgrades, maintenance etc. would be helpful as well. BTW...what is the year and mileage of your Murano?
 
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