LATHARGIC - ness

[Homms'03Murano]

Hello All. I'm a regular reader and poster her in nissanmurano.org. I have a question and I need fellow MO-ers advice and suggestions.

1-I own a 2004 SE AWD. Its great all roound, except one thing. the car feels "heavy" , "lazy", and "lathargic"...It feels like I'm asking her to do too much (which I'm not) and it's refusing to oblige. But I still Love her soo..
This is what I've had done: changed fuel pump, fuel filter (2 of them), servcies nozzles , changed plugs and "serviced" the air-intake or air flow/mass area...still no difference. What am i missing here or what should i try doing?...I know the car it self is Heavy (weight) but c'mon it a 3.5l V6 ....

2- Also, i hear the engine sound louder from the inside, what could that be.

I'd appreciate any usefull ideas/tips/suggestions/recommendations.. anything really that will solve the above problem No. 1.
Thanks in advance.

[njjoe]

Homms'03Murano-

Is this something new or has your MO always felt this way?

The CVT enables the VQ to be a slow-revving engine. You really need to apply your foot to bring the revs up and get the MO to respond.

-njjoe

[Homms'03Murano]

Njjoe, Well I bought it off someone, so I dont know if has always been like this. I've had it now for 3 months & remember it having this problem a bit but seems it's getting worse.
I realized the slow revving like you said, even in idle but i didnt know that it had anything to do with th CVT. Actually, that's not my worry. My concern is when i accelerate and move along, that's when i feel it heavy, lazy and lathargic. To me, the RPM numbers dont match the speedometer and by extention I dont feel/get the power i think the MO has. I don't know if I'm making sense here. I feel it also when i'm kicking down (down shifting). Hope this helps you in trying to help me,

[njjoe]

Homms'03Murano-

You are right when you say the RPMS do not match the speedometer. When I first drove a Murano I was bit surprised by that fact and would have been a little concerned if it were not for the fact that I was driving a rental MO.

The CVT enables the MO to cruise around at relatively low RPMS for a given speed. You can cruise at 70 MPH at just 2,000 RPM. Not many V-6 cars can do that. Even at slower speeds, as long as you are running at a steady speed the RPMS are low.

When you hit the gas the RPMS will shoot up to the high end of the tach yet the speedometer will climb at a relatively slower pace. That is normal, but it does take some getting use to.

Have you driven other Muranos? If so, do they behave the same as yours?

-njjoe

[Homms'03Murano]

Njjoe, Good thing on the Rental Mo...wise !!!
No, I haven't driven another MO, maybe I should & i would.
Also, I DID notice the issue of slow rev on constant speeds not exceeding 100km/h....I thot it strange @ first, then i thot to myself "who're you 2 question our engineering (MO guys)".
Your explanations so far has calmed me down a bit, I don't feel ALL alone in my sensations. I was thinking that maybe there's a leakage in the air intake to the engine! Thanks Njjoe.

[Kris]

Homms'03Murano

try this: start driving and when you reach let say 60 kph move the shifter to "S" or "DS" position and watch the RPM....and try to push gas pedal a bit.....

You will be smiling....trust me....and won't be complaining about lack of power...

[Homms'03Murano]

Kris thanks 4 ur respnse. Dude, your input is more of "fast & furious" thing, LOL. I will try it though for the fk of it.
fresh question: what does it mean when you hear a 'pick, pick, pick' sound when u try to accelerate?....

[njjoe]

Originally posted by Homms'03Murano
fresh question: what does it mean when you hear a 'pick, pick, pick' sound when u try to accelerate?....

Possibly bad CV joints?

-njjoe

[Homms'03Murano]

Sorry what're the CV!!!!...also that sound i think in my lay-man's understanding is something to do with fuel/oil/air supply to the engine...possible?

[BikerJohn]

Originally posted by Homms'03Murano
.
fresh question: what does it mean when you hear a 'pick, pick, pick' sound when u try to accelerate?....

I wonder if that's "pinging" from the anti-knock sensor not working?
CV= "constant velocity" joint. The area concealed by the rubber boots on the drive shaft.

[Homms'03Murano]

thanks for the CV transl. well, I'm not sure about the sensor you mentioned. The sound actually seems to come from the engine compartment (i bet my life on it) and not anything to do with suspension, shatf etc....as i understand it...sounds like when your sedan is showing signs of overheating....you know the car feels it wont move and u hear this "pinging" noise.. also, I asked if anyone know what me hearing the engine sound from inside the card that is louder than it should be....

[njjoe]

Originally posted by Homms'03Murano
Sorry what're the CV!!!!...also that sound i think in my lay-man's understanding is something to do with fuel/oil/air supply to the engine...possible?

The CV stands for Constant Velocity. A CV joint is located on both ends of the front half-shafts. The half-shafts are the round metal bars that transmit power from the transmission to the front wheels. They will make a clicking sound, usually with the wheels turned hard right or left, when they are worn and in need or replacement.

The "pick, pick, pick" sound may be just the fuel injectors firing off. I can hear it standing outside my MO, but cannot hear it inside with the windows rolled up.

-njjoe

[BikerJohn]

Originally posted by Homms'03Murano
The sound actually seems to come from the engine compartment (i bet my life on it) and not anything to do with suspension, shatf etc....as i understand it...sounds like when your sedan is showing signs of overheating....you know the car feels it wont move and u hear this "pinging" noise.. also, I asked if anyone know what me hearing the engine sound from inside the card that is louder than it should be....

Does the sound only occur as you try to accelerate?

[Homms'03Murano]

Njjoe: thanks for ur detailed explanation of the CV. I'll have my mechanic (while i'm with him, your explanation IN HAND) on monday.

Bikerjohn: YES, while i accelerate and as i move sloping upwards and only for seconds. in both cases, (accelerating & climbimg) the sounds comes up and if i ease off the gas pedal for an instant it goes away and comes back when i put my foot on the pedal to increase speed. the sounds kinda tells me "EASE OFF MAN"!!. Honestly, you people in this forum are GREAT!...between all you experienced memebers & some new ones, we can build us OUR own MO without all the kinks (no TSBs and OBDs needed).

[Homms'03Murano]

LOL, DAMN...THE 1ST SENTENCE WAS INCOMPLETE...I meant I'll have my mechanic CHECK IT OUT (cv)...PHEWW!