Reverse Ticking Noise And Random Engine Crank Noise On Startup?

[drsplodge]

Had my 03 v35 auto coupe for about a month now. Great car, and a very smooth drive

Picked up on noises lately that I wasn't sure about.

First is at cold crank (usually overnight). Sometimes I get a rattle/crank noise when I start. I'm guessing this is an oil pressure problem of some sort? Rare to occur, but always in the morning. Only noticed it twice in the last week.

The other noise is a ticking noise in reverse only? This isn't the infamous axle clicking problem is it? Fairly light noise, only when I engage reverse and turning into a park. Sounds like its coming from the front. It's a similar sound to CV joints failing in fwd cars (but a hell of a lot fainter)!

The third noise has been deemed normal (thank god). The one when you first take off in D and get a funny noise once you reach 20kmph.

I'll have to try and record these noises at the right moment!

[pv35gt8]

The rattle crank noise you are hearing is probably the starter, the spur gear not withdrawing from the ring gear in a timely fashion, hence the noise, mine does it and I'm not concerned.

For the other noise you are hearing I have no , could possibaly be as simple as a l stone caught in your tread, but I would get it checked out to be sure.

[iseekool]

Had my 03 v35 auto coupe for about a month now. Great car, and a very smooth drive

Picked up on noises lately that I wasn't sure about.

First is at cold crank (usually overnight). Sometimes I get a rattle/crank noise when I start. I'm guessing this is an oil pressure problem of some sort? Rare to occur, but always in the morning. Only noticed it twice in the last week.

The other noise is a ticking noise in reverse only? This isn't the infamous axle clicking problem is it? Fairly light noise, only when I engage reverse and turning into a park. Sounds like its coming from the front. It's a similar sound to CV joints failing in fwd cars (but a hell of a lot fainter)!

The third noise has been deemed normal (thank god). The one when you first take off in D and get a funny noise once you reach 20kmph.

I'll have to try and record these noises at the right moment!

That is due to the oil pressure not building up fast enough to tension the timing chain's hydrulic tensioner. Reason why it happens in the morning is because most of the oil drains to the bottom of the engine. It's not an issue I'd be worried about - as long as the sound dis-appears stright away - if the sound is constant you could be using incorrect oil/time for an oil change or could mean an issue with the tensioner.

You might want to check the oil grade - I think the V-Series use 5w-30 oil.

[andy65b]

+1 for check your oil and consider an oil change.

[drsplodge]

Yeap oil is normal and I changed oil the weekend I got the car. Running edge 5w-30 in it. Oil is right level and done about 2000k. Haven't noticed the noise lately but will keep out for it.

[will's35]

For the ticking noise, maybe is the ball bearing of the wheel cause it, mine got the same problem, and will check it on monday... the garage guys said that 10 out of 8 customers with 350z or 350GT got the same problem. not expensive to fix.

[peetii]

I sometimes get the startup rattle as well on my 03 V35 coupe and could be caused by the VTC sprocket (gear for the Valve Timing).

From what I've read, it doesn't cause any damage to the engine and is mainly a noise issue.

As Iseekool has mentioned, an oil change should help.

[drsplodge]

Ok cool. I'd be keen to see how you go.

Also uploaded the reverse ticking noise. You can hear it in the background (ignoring the reverse beep!)

reversetick.wav

Edited July 31, 2010 by drsplodge

[fcruz3r]

if its a single click when reversing...then its the rear axle ...needs to be greased and rotated

otherwise if its a series of clicking noises...my guess would be brakes or wheel bearing

[will's35]

Hay, just got my V35 checked this afternoon, about the rear ticking noise, the mechanic disassembled the rear wheel rotors and check the wheel bearing, he's spotted nothing and i replace my rear brake pads and machined the rotors...

the noise is still there...=.= he said the car is mechanically okay maybe the shape of my 370Z 18'' wheels that i put on produce the sound by stirring up the air...so the (ticking like) sound appears at a slow speed but disappear later? i don't understand it.. so.. nothing solved LOL....

Anyone else got the same problem?

[fcruz3r]

since he had the rotors out...wud have been a good idea then to get him to pull the rear axles and grease the cv ... moot point now that you've already got ur car back

[drsplodge]

Thought I'd update this. I've worked out that the reverse ticking noise only occurs when you ride the brake in reverse while turning the wheel (ie. Parallel park). Wierd! If I reverse without riding the brake, all is fine (still turning the wheel of course)...