Alternator replacement

Eric Technician West Frankfort, Illinois Posted   Latest  
Demonstration
Electrical
2015 Nissan Pathfinder S 3.5L (VQ35DE) (RE0F10J)

Had to change the alternator on this vehicle today. When I checked Alldata it showed 4.6 hours to change and called for pulling the radiator and cooling fans. Well neither of those looked like fun to remove so I started looking for another way to get at the alternator.

So I decided to try coming at it from the bottom. So recovered the refrigerant and removed the ac compressor.

diag​.​net/file/fbgfwllj2…

Then I removed the belt and belt tensioner. And that have me access to everything I needed to remove the alternator. The alternator connector was a little tough to get at but by removing the upper bolt and loosening the lower bolt I was able to pivot the alternator forward and disconnect it reaching down from above.

diag​.​net/file/f176mwqgg…

Now with all electrical connection and bolts removed the alternator can be rested on the subframe. However it will not fit between the frame and the engine, but with a big pry bar and a helper you can rock the engine rearward enough that it will come right out. ​

diag​.​net/file/f2igvojul…

Some may have already figured this procedure out but hopefully it can help someone who has not had to do this job yet. It booked for 4.6 and I think I had about 2.5 hours in it, next one should go quicker. ​

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Helpful
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Thanks
George Owner/Technician
Skagway, Alaska
George Default
 

Hold my beer, watch this! LOL You probably spent 20 min or so trying to figure out how to do that with out pulling the radiator and etc. Next one will be an hour and a hlf.....

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Eric Technician
West Frankfort, Illinois
Eric Default
   

Hopefully, it also helped out on the next car as it was a 2009 Murano with the same engine that got an ac compressor and condensor.

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Allan Mechanic
Westlock, Alberta
Allan Default
   

Thanks! I will forward this so the labor time can be cut. 0.9. Thanks for helping save money!!! the pictures and shortcuts really help us stream labor ops!!! Do you have any more time saving tips?

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Funny
Agree
Off Topic
Edward Owner
San Antonio, Texas
Edward Default
 

Allan I agree 💯%... Although I believe as techs we can share information without blasting it to the world maybe in this case we email, or another form of Commutations I remember when Ford would give us $50.00 to fine out short cuts and fine out the labor would be cut...we would scold any one jumping in to claim this voucher....

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Albert Owner/Technician
Towanda, Pennsylvania
Albert Default
   

It seem like I'm running in to this kind of thing a lot over the past few years. Remove this that and the other thing to get at what you need to replace. the first time i came across something like this was like 15 years ago with a chevy impala where you have to disconnect the front motor mount to replace the the rear spark plugs. Thank you for posting this it'll help a lot

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Stuart Mobile Technician
Blue Island, Illinois
Stuart Default
 

One thing about being an Auto Tech is we know how to improvise.I recently had to replace an alternator for the same vehicle and found the same way was much easier as you found​.​Some of the factory manuals I found throw you to the wolves with their procedures​.​Thank for sharing.

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Gary Technical Support Specialist
Rochester, New York
Gary Default
 

Thanks Eric for sharing your tip. Alot of times we think everyone in the world knows this way but the fact is there is always someone that can benefit from any tip, short cut. Keep them coming to make us all better, and more money.

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Caleb Diagnostician
Mishawaka, Indiana
Caleb Default
 

I have done this also on newer Murano and Quest. Nice write up!

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Martin Instructor
Burnaby, British Columbia
Martin Default
 

Handy tip for those that will travel the same path Eric and similar logic that can be applied in many situations where extra clearance is needed. FWIW, Cadillac Northstar alternators used to be very similar "fun", back in the day. Also, GM carlines with Z34, 4 cam 3.4L engines had alternators buried at the right rear of the engine under a cover and cooling duct. They were seemingly impossible…

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Hollis Technician
Boulder, Colorado
Hollis Default
 

That's what's called using your 'Noodle' (Brain, for those not familiar with American expressions ). Amazing sometimes, the difference between the Noodle that wrote the R&R procedure vs. the Noodle that has to do the repairs. Who's the Genius now, Einstein :O) Work smarter, Not harder !

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Stuart Mobile Technician
Blue Island, Illinois
Stuart Default
 

This is why us Techs love to hate the engineers.

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Hollis Technician
Boulder, Colorado
Hollis Default
 

I used to think I hated them, then I realized their jobs aren't easy. They're given a task to design a product, come up with a design, work within accepted guidelines and get it ready for manufacturing ASAP and that's just the tip of the iceberg. Sometimes we're supplied with adequate information to effect repairs, most times we just have to read between the lines and let our 'Inner-Engineer'…

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Stuart Mobile Technician
Blue Island, Illinois
Stuart Default
 

I know,I was just trying to be funny​.​We all knew what we were getting into when we picked the career we chose​.​The career didn't choose us.

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Hollis Technician
Boulder, Colorado
Hollis Default
 

Understood, if we can't have a little fun, why bother... :O) Actually, I didn't chose my career directly, it started out of necessity driven by an innate ability and has somehow developed into an uneasy passion of sort's, maybe they call it 'fate' :O) Wash Your Hands and Go Forth and Prosper :O)

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Justin Mobile Technician
Herriman, Utah
Justin Default
 

Your description of how you got into this mess of a career matches mine more than anyone else’s. With me I was born into it. Grandpa, his brother, dad, uncles and cousins all did it. I refer to it more as a family curse.

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Stuart Mobile Technician
Blue Island, Illinois
Stuart Default
 

Then you have to ask yourself"What would be doing if I wasn't doing this for a living".Most likely complaining about how boring my job is.I'm just being funny but realistic​.​This is the second career for me.I was an electronic bench technician for 20 years before becoming an Auto Tech​.​Both are thankless jobs but keeps my mind challenged in ways that no other career can…

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Hollis Technician
Boulder, Colorado
Hollis Default
 

It was either carry the family torch or run away and join the circus :O) When I was a child, I remember seeing on PBS a documentary about Frank Lloyd Wright, somewhere between childhood and young adulthood my Architectural aspirations were hijacked by the need for food, shelter and clothing and gas money :O) Aah, no real regrets, I would have been stuck in an office :O)

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Martin Instructor
Burnaby, British Columbia
Martin Default
   

Exactly Hollis, good observations and comments. FWIW, I started out in engineering, while maintaining a parallel motorcycle and auto repair business with friends at the end of my regular work day. The engineer designing one component typically has worked in isolation from the engineer working on the component to which it mates or connects to electrically. Save for a bolt flange for physical…

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Interesting
Hollis Technician
Boulder, Colorado
Hollis Default
 

Well said Martin. It's something I've realized or known for quite sometime, but my 'Tunnel Vision' in the heat of battle and absolutist thinking expects when I enter the SI for theory of operation, a general description and diagnostic information that a path to follow would be laid out in an assumed effective logic that would best suit a repair technicians field of expertise and training. I have…

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