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1998 Nissan Altima rattle and whine

Tiny
ALKING
  • MEMBER
  • 1998 NISSAN ALTIMA
Noises problem
1998 Nissan Altima 4 cyl Automatic 96000+ miles

A few days ago my engine started to make a rattling noise, almost as if a part got loose and was knocking against another metal part as I was driving. (I have checked and nothing is loose) The noise wasnt consistant until this morning. There has also been a whine that becomes louder as I accelerate. The whine is not constant and usually stops after driving for 10 miles or so.
I'm unsure what to do besides take it to a shop and have my bank account drained.
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Monday, February 23rd, 2009 AT 10:28 AM

3 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok before taking it to a shop I would get a long screw driver that you can use as a stethiscope to listen to the engine. You put the screw driver on the part you want to listen to and put your ear to the other end and listen. I would start with the valve cover and work my way around the louder the noise the closer you are. Let me know what you find.
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Monday, February 23rd, 2009 AT 3:27 PM
Tiny
ALKING
  • MEMBER
  • 2 POSTS
The loudest noise seems to come from the two places i circled in the pic (with the screwdriver). But to the "naked" ear, it seems to come from down by the belts...couldnt get there with the screwdriver i had.


https://www.2carpros.com/forum/automotive_pictures/322111_engine_1.jpg

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Monday, February 23rd, 2009 AT 4:46 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok with what you have discribed to me I would say that your timing chain is streched and making most of your noise.
As for the alt. I would take it off and take it to a parts store and have them test it and if it makes noise off the car then replace it and see how much difference that maikes.
I would also go to the parts store and buy a stethescope so you can better hear and listen and have better reach. I would like to make sure that that the water pump isn't making all your noise before saying change the timing chain and guides and such. Get back to me
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Tuesday, February 24th, 2009 AT 10:47 AM

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