| arvzmurano |
| Hi there I have a 2003 Murano with 35k miles on it, i noticed this weird fast clicking whining noise come from what I think is the passenger side of the engine, If the car is in Drive and I hit the gas and it goes to exactly 1250 RPM it makes that weird noise but when I hit the gas and it goes to 1500 RPM and up it goes away, the weird thing is if I put the car in the S gear to the right it never makes that noise. When the car is on but parked it doesnt make that noise, only at 1250 rpm and if I keep the pedal down at exactly 1250 rpm it does it the whole time but only when driving, not parked. Ant ideas???????????? |
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| njjoe |
arvzmurano-
A clicking noise under acceleration is usually (but not always) a sign of a failing CV joint. However, if it was a CV joint the noise would occur when the steering wheel was turned far to the right or left.
Another possibility is a bad wheel bearing.
Take your MO to a reputable mechanic and let him put an ear to the problem. Let us know what you find out.
-njjoe |
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| Gonzo |
It sounds like the noise is when the car is NOT moving and only at 1250 RPM... therefore I don't think it would be a wheel bearing.
This is odd... perhaps a fuel injector or the water pump? Keep us posted this is the first I"ve heard of something like this. |
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| arvzmurano |
| the sound is actually more like rapid tiny clicks......its really getting on my nerves. Where do you suggest I take it, Nissan dealership?? |
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| njjoe |
arvzmurano-
On the off-chance that it is a problem that is covered by the powertrain warranty I would take it to a Nissan dealer.
-njjoe |
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| Nathan @ NBO |
| It could in fact be an injector, or maybe a valve? Have you gotten under the hood while the car is running and had the motor rev to 1250 and listened? My advice, don't drive at a constant 1250rpms :D |
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| arvzmurano |
| i would love to check under the car but the problem is it doesnt make the noise while the car is parked and being revved at 1250, it only does it while driving. |
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| biggun |
| I think there is a TSB for this. It may be the fuel damper issue in the engine compartment. |
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| arvzmurano |
| thanks a lot i will definetly look into it |
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| Doombringer |
I've noticed a similar sound myself. I can't say I've ever heard it before, but it's certainly here now!
It doesn't happen at idle. It only happens on accelleration.
It is most noticeable past 20 MPH with light accelleration (ie, driving about a town with low speed limits). 20-40 MPH seems to be the range it's most easily heard. Above that the engine and road noise are too loud to really hear it without straining.
It sounds like a soft tapping, or fluttering. If you let off the gas, it goes away.
I'm thinking valves but I'm sure there are other possibilities. The MO is due for regular service soon so I'll have them look at it then. |
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| Tahoe SC |
you guys figure out what it is?
wife's mo has the same thing...i've always thought it was predetonation due to crappy gas, but it also does it at cold start up. |
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| arvzmurano |
| dang look what I started, I will definetly check that link out please reply if any of you guys firgure it out thanks |
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| maxfan |
| My '04MaxSE has a heatshield/bracket defect due to improper assembly (1st time made in USA ever). It happened only when driving between 2500-3000RPM. If yours isn't in warranty anymore, I suggest you do it yourself. Go buy a couple of adjustable brackets at autoparts (works like a tie-wrap, adjusted by a screw, like one that holding the radiator hoses). Wrap one of those aound the heatshield upfront (two thin plates wrapping around the exhaust pipe). Those plates are loose and will make all sorta noises. At first I swear it was the transmission noise. Since the bracket is only $3-5 and very easy to apply, this is a cheap diag. |
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| zebelkhan |
quote:
Originally posted by maxfan
My '04MaxSE has a heatshield/bracket defect due to improper assembly (1st time made in USA ever). It happened only when driving between 2500-3000RPM...
That actually makes a lot of sense as at certain RPM, engine vibration causes the shield to reach its natural frequency and create audible sound. |
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