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2000 Nissan Maxima humming noise

Tiny
25
  • MEMBER
  • 2000 NISSAN MAXIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 300,000 MILES
My car wont start and its making a humming noise when put in reverse or drive gear with just the ignition lights on, this also happens when you just touch the accelerator, but it wont fire.
Saturday, March 6th, 2010 AT 9:06 AM

15 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi 25,

Thank you for the donation.

The humming noise should be from the accelerator controls and should not be directly related to the non starting.

For non starting, you would need to check what is missing, fuel, sparks or a mechanical fault.

https://www.2carpros.com/kpages/first_things.htm

The above link has information on how to go about checking for the source.
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Saturday, March 6th, 2010 AT 11:55 AM
Tiny
25
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I will try and see if its the injectors
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Sunday, March 7th, 2010 AT 5:48 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Was any repairs carried prior to this occurring?

Are you able to crank the engine?

Let me know if you require any other assistance.
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Sunday, March 7th, 2010 AT 6:31 AM
Tiny
25
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Yes I have changed the timeing chain but that is perfect and everything is the way that it should be atleast when it comes to the timeing?
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Sunday, March 7th, 2010 AT 9:07 PM
Tiny
25
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The engine turns over just doesent fire
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Sunday, March 7th, 2010 AT 9:08 PM
Tiny
KHLOW2008
  • MECHANIC
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Did this problem occur immediately after replacement of the timing chain?

If yes, then it is possible some sensors are not connected or there could be some problem with the synchronisation of the sprockets.
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Monday, March 8th, 2010 AT 8:58 AM
Tiny
25
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  • 12 POSTS
I have done a compresion test and the left bank is pushing 105 pounds and the right bank 150 pounds I think it might be vavles, because shouldnt it run around 145-160 pounds the safe zone or could it be something else. The car wants to start but im thinking that there is just not enough compression to kick it over:( What do you think?
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Monday, March 8th, 2010 AT 4:05 PM
Tiny
25
  • MEMBER
  • 12 POSTS
With compresion this low should the engine still fire or not, I sort of need to know because im considering putting a new engine in due to the fact that it wont start, and its going to cost the same to do the head anyway one I buy the VRS kit for it.
Can I please have you advice on this matter?
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Monday, March 8th, 2010 AT 4:19 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
At such low compression it might start but the difference in compression is most likely to be due to improper timing chain synchronisation which is causing the non starting. Recheck the timing chain and if it is out of sync, reinstall and retest the compression. If compression increases, then engine might be able to start.
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Tuesday, March 9th, 2010 AT 6:05 AM
Tiny
25
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I will try this and get back yo you soon. Thanx
i really appreaciate your advice its invaluable.
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Thursday, March 11th, 2010 AT 6:35 AM
Tiny
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You're welcomed and anything further, just post reply and I would get back to you once I am notified.

Have a nice day.
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Thursday, March 11th, 2010 AT 8:00 AM
Tiny
25
  • MEMBER
  • 12 POSTS
Hi Again
I have another question.
Im pretty sure that I have installed the timeing chain wrong and need one last bit of help if thats okay with you?
I need to know how many linkages there are between the gold link and all of the other links on the timeing chain, as my new one didnt come with the gold on it.
This was my problem, im pretty sure that am only out one or two teeth, but need that info to make sure its dead correct.
This would greatly help me and I will make another donation, ASAP
Thanks Heath
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Friday, April 9th, 2010 AT 5:34 PM
Tiny
KHLOW2008
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Hi Heath,

I am sorry our database does not have any information as to the number of linkages between the marks.

All timing chains should come with markers and if it is not gold, it should be links that are slightly darker than others. It sometimes is difficult to differentiate the links if coated with oil. A strong light would be required.

If you have the old chain, you should be able to count the links. If not available, drop by your local shop and request them to show you the chain from where you can count the number of links.
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Saturday, April 10th, 2010 AT 7:45 AM
Tiny
25
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Thanx for that
I will check out the new chain with a strong light today.
If I carnt see the links then I will call into autobarn
and see if they have one with the marks.
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Saturday, April 10th, 2010 AT 3:21 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You're welcome.

Don't be shy about asking additional questions, our aim is to help as much as possible. Just that there are too many questions lying around and we are not able to get to each and everyone.

As I mentioned in an earlier post, just post reply to this thread and I will be notified. Only problem is that the notification process sometimes fails and notification is not received.

If you did not receive any response within 24 hours from me, sent me a notification via the pm mode, if notification fails I will still check my message.

It has been a pleasure working with you and hope you get the problem solved soon.

Have anice day.
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Saturday, April 10th, 2010 AT 8:28 PM

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