[o6murano]

Service Engine Soon light is on...

All of a sudden it went on, lastnight I heard a weird noice like a motor or fan running after I shut the car off, now it says Service Engine Soon, maybe the A/C fan? Please help, I'm gonna go to the dealer tomorrow or Tuesday.

 

[njjoe]

o6murano-

Are you sure it is a new noise? Or are you just more aware of the vehicle noises because the SES came on? (I have definitely experienced the latter.) The reason I ask is because there are several threads that reference the same type of noise, and in most cases it turned out to be the motorized engine mount unique to the VQ. The noise may be unrelated to the SES.

Let us know what you find out from the dealer.

-njjoe

 

[Tyler_Canada]

The A/C fan won't trigger a SES light. The only things that will trigger that are emissions equipment (catalytic converter, etc), engine and CVT. Since the CVT light isn't lit, it must be one of the first two.

 

[Eric L.]

Let us know what the dealership finds out. Make sure you have a tech listen to the noise with you present, to confirm that they are aware about the problem (in case its not related to the SES light).

 

[Stephan625]

I will be curious to see what it is as well. Since mine just cam on this past Saturday. This is the second time for me, although I can't remember what the problem was the first time.

The odd thing is my in-laws have a Murano, same year as mine (2005) and they have had their check engine (service engine soon) light come on twice as well, with in a couple weeks of mine.

makes me wonder...

 

[Stephan625]

Well just brought mine in today and the service department called me and told me it was for the samne thing that happened back at my 13K mile problem.

They have to replace the throttle body once again. He told me Nissan has changed the design again and he has seen quite a few come in with the same problem.

 

[njjoe]

He told me Nissan has changed the design again and he has seen quite a few come in with the same problem.

Ohh-ohh. They changed the design? Makes you wonder what was wrong with the previous version.

-njjoe

 

[zebelkhan]

I will be curious to see what it is as well. Since mine just cam on this past Saturday. This is the second time for me, although I can't remember what the problem was the first time.

The odd thing is my in-laws have a Murano, same year as mine (2005) and they have had their check engine (service engine soon) light come on twice as well, with in a couple weeks of mine.

makes me wonder...

Did by any chance your light come on after a long drive or on a hot day? The only time my SES light came on was after a 8 hour drive in a 100+ weather driving in Las Vegas. I think I had 25K miles then and they changes the throttle body. No lights since. I now have 53K miles but have not had as long of a drive yet.

 

[Stephan625]

njjoe - Not sure what was wrong with the previous design, or the origianl for that matter.

zebelkhan - it was really nice here (Connecticut) for a change it was brutal a week or so ago, but when it came on it was 75 and no humidty. First time happened at 13K and now I am at 34K.

 

[bob1]

I'm interested in this thread, not for my MO but my Altima with the 3.5 engine. Just had a SES light come on at 46000 miles. Just a short trip about 1 mile from the house. No apparent change in performance. Not the gas cap or I should say the cap was not loose. I know, wrong forum but same engine, I'm sniffing around.
Bob1

 

[Eric L.]

I'm interested in this thread, not for my MO but my Altima with the 3.5 engine. Just has a SES light come on at 46000 miles. Just a short trip about 1 mile from the house. No apparent change in performance. Not the gas cap or I should say the cap was not loose. I know, wrong forum but same engine, I'm sniffing around.
Bob1

Try disconnecting the negative battery cable for half an hour, that should clear the code if its something minor like the gas cap. If it comes back on again, its probably something like an O2 sensor - so get it checked out by the dealer.

 

[bob1]

Try disconnecting the negative battery cable for half an hour, that should clear the code if its something minor like the gas cap. If it comes back on again, its probably something like an O2 sensor - so get it checked out by the dealer.

Thanks Eric, that's what I've been sniffing for. My son had me disconnect the positive wire for 10 minutes but that did nothing. The light came right back. Tonight I'll try the negative for 30 minutes.
Thanks
Bob1

 

[njjoe]

Thanks Eric, that's what I've been sniffing for. My son had me disconnect the positive wire for 10 minutes but that did nothing. The light came right back. Tonight I'll try the negative for 30 minutes.
Thanks
Bob1

Bob-

Don't bother disconnecting the negative cable. You already powered-down the circuitry when you took your son's advice and disconnected the positive cable. Disconnecting the other cable will have no additional effect.

-njjoe

 

[Tyler_Canada]

Disconnecting the cables will have no effect on our Murano's. The data is stored in flash, which is not erased when power is removed.

To clear it you need to follow the directions in my post about reading error codes, or use a scan tool to clear it. Get the error codes before you clear them!

 

[Eric L.]

Disconnecting the cables will have no effect on our Murano's. The data is stored in flash, which is not erased when power is removed.

To clear it you need to follow the directions in my post about reading error codes, or use a scan tool to clear it. Get the error codes before you clear them!

It actually depends how severe the code is. If its something like a misfire, yes the code will be stored to flash. But minor faults generally do not get stored to flash until multiple trips. I've never had the SES come on in the MO, but had it happen a few times in the Maxima - even with something like an O2 sensor, disconnecting the neg cable will turn off the light, and the two trip detection logic will turn it on again if it still detects the fault.

 

[bob1]

Bob-

Don't bother disconnecting the negative cable. You already powered-down the circuitry when you took your son's advice and disconnected the positive cable. Disconnecting the other cable will have no additional effect.

-njjoe

Whoops, too late, disconnected negative for 1/2 hour and all I managed to do is screw up my radio presets.:jester:

Looks like plan B will have to be performed.

Thanks for everyone's input. I don't participate in other forums. They are too busy flaming people that have problems. This forum is so civil!
When I get an answer, I'll post. I know it's a different car but the same engine should produce the same errors and problems. My son wants me to wait till he visits so we can go to Auto Zone or Advanced Auto Parts as they have a free-bee error code machine. Since I have the MO and Altima and I work at home, I'm not stressed. I'll post when I get some news. Just to pass along what I know, if you have a bad computer or catalytic converter, you are covered by Nissan till the 80,000 mile marker. I probably won't be that lucky.
Bob1

 

[bob1]

Update and if anyone reading this, if you did not read the beginning, this is about my Altima but having the same 3.5 engine, I thought I'd share since it is engine related.
Well, not good news, Nissan was the Grinch this year that emptied my wallet. The verdict was a double whammy of a bad cam shaft sensor as well as a bad solenoid valve assembly. The parts alone were something like 125 and 185 and a 10.00 gasket of some kind. Add the outrageous dealer labor and rip off shop fee's, and it came out to 572.00. It is the first problem encountered with the Altima or the 3.5 engine. After 4 years of ownership I won't complain too much as this is the first non scheduled maintenance money spent on the car.
Bob1

 

[Kris]

Bob,
how many miles? Still not that bad after 4 years...

 

[bob1]

Bob,
how many miles? Still not that bad after 4 years...

Kris about 46K. I agree not bad as I have never had to spend a dime other than routine stuff like oil. I'm still on the original brakes and tires. Truthfully the car has performed above expectations. Just disappointed that stuff like this went on the 3.5 engine at such low miles. My guess is the code thrown out was either part and not to get caught with me jumping up and down if they replaced the wrong part and the light comes back on, they did both. I have no proof, just a guess but I can't imagine having a double failure. Of course the one part may have been bad but not a trigger for the SES light. I just can't figure that out.
Bob1

 

[Kris]

Yes, I agree with you. It is very sad as we cannot trust the dealer.

46k miles is not that much. My understanding is that the VQ engines last 200k miles easily if taken care of properly. I have 67k on Murano and 44k on the FX. So far the FX was flowless and my wife intend to keep it for a long time.