Started my car up everything normal. As soon as I hit 3,300 rpm there is this shrill squeal that then continues even at idle until I turn it off and back on again, then it is gone until I hit 3,300 rpm again. The squeal is RPM driven, so it is quieter and deeper at idle and then increases in pitch and speed as the rpm go up. This goes on until I stop and turn it off then back on again. Sounds like it is coming from the serpentine belt/timing belt area, its hard to locate but it doesn't sound like its any of the outside pulley's more like the inner less easy to isolate the noise pulleys.
Weird Belt Squeal
- Thread starter Cameron23
- Start date
- Location
- S.Subs of Chicago, IL.
The way we did it back in the "OL' DAYS" if to put lub on 1 pulley's shaft at a time, drive and listen. If it continued, move onto the next pulley until it stopped or you went thru all of them.
- Location
- machesney park IL
Remove one belt at a time (test each time) till you find what is making the noise. Don't run it long water pump not turning is not good. Once you find what belt set the problem is on. Then put your hand on every pulley and make sure there isn't play or lateral movement that each turns smoothly without snags or lumps. All pulleys check out ok then replace the defective belt. All belts off front still makes noise then timing belt or elsewhere.
If you have a suspicion it could be a bad belt get some belt grip from the auto parts store it comes in a spray can. Spray each belt one at a time (test each time) see if the problem fades.
If you have a suspicion it could be a bad belt get some belt grip from the auto parts store it comes in a spray can. Spray each belt one at a time (test each time) see if the problem fades.
- Location
- S.Subs of Chicago, IL.
S.D. I was taught to never run an engine that had a serpentine w/o it. That's why I guess they taught me the "lube each one and check" method. It seems that you can... I just learned something new. lol
- Location
- machesney park IL
Yeah again water pump belt probably not the greatest idea. As the coolant will not circulate and it could create hot spots on the head blowing a head gasket. But, if it just a quick start and see I see no issue as the temps won't rise that quickly. I used the same method to diagnose my belt noise. Ended up being the timing belt tensioned wrong. Your oil method may work as well. Can't say if it would quiet the issue (lube the belt) or if it would increase the belt noise (causing the belt to slip) I guess depends on the thickness of oil. I've used pb blaster or wd40 in the past did help silence or determine which belt. I would use your method then mine if yours doesn't locate the issue.
Ben
Ben
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- Location
- S.Subs of Chicago, IL.
I think I confused the issue a bit. The lube is for the pulley shaft. NEVER the belt. It might cure the problem but only a temp fix. The pully should be replaced, at least the bearings if possible.
- Location
- machesney park IL
Ah makes sense.
I'm guessing a/c or water pump tensioner bearing. The tensioners went out on mine once giving similar noises and issues at speed.
Ben
I'm guessing a/c or water pump tensioner bearing. The tensioners went out on mine once giving similar noises and issues at speed.
Ben
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I did the put a screw driver to a piece of metal near each pulley until you hear the frequency of the squeal. Didn't hear it from any of the forward pulleys. But then I put it on the metal part that goes back towards the engine that attaches to the radiator rubber tube and hear that piece of metal singing which means the noise source is close. So it seems to be a bit further back into the engine. I have a timing belt noise already they sound like night and day, (not the same thing) however the noise does seem to be coming from the direction of the timing belt apposed to the serpentine or other forward belts.
Okay they said that it is my water pump making the noise. They said they can do my water pump timing belt and cam seals for 1050 at this very trusted (for quality of work) dealership. I need my Tbelt done because it was put on too tight 2 years and 30xxx miles ago (should I do a whole new belt kit or just the belt?). Also he said the cam seals start leaking around now and I should get them changed if they are.
What is truth and what is bull****?
ANNNNND GO
What is truth and what is bull****?
ANNNNND GO
- Location
- Columbus OH
You should do the seals at the same time, as well as a new timing belt. I would do all of the belts while I was in there and keep the old ones as trail spares. Any time that you are that far into the front of the engine you will want to do everything that you can.
- Location
- machesney park IL
Yeah if you didn't do the whole timing belt kit first time around do it now. Seals and the overtensioned tensioner. Might as well do the belt as well since it is being removed.
Ben
Ben
Yeah I am just pissed off. We took the X to the guy who did it the first time like 12 days out of warranty and under the 12k mile marker of the warranty and he was like oh we checked the belt its fine. And since I didn't own the car at the time my mom believed him, and now a year later I take it to a trusted Nissan dealer and within 30 seconds of my stepping out of my car he asks when was your timing belt done, because it sounds too tight. I hadn't even said anything other then Hi to him. And this happened with 2 different visits to the dealer from 2 separate mechanics. So I find it hard to believe that the guy who did it the first time was truthful in his reassurance that it wasn't the timing belt. And now that we bring him Nissan's 2 diagnosis he says "well lets look up when you had that work done, because I do offer a 12/12 warranty, oh you had that done 2 years 28k miles ago, the warranty is no longer good. Hey but I am sure that my guy tightened that to spec." This all after I corrected him a year ago when I brought it in for the timing belt noise and he told me it had an automatic tensioner. He then followed up with "nonetheless my guy is sure that he tightened it to spec (a year ago)." How were we supposed to use the warranty a year ago when it would have applied if the guy kept telling up the belt was tightened to spec and that it wasn't a problem. My mother believed him when he said "it was just a new engine noise with the new belt." So in trusting him she allowed the warranty to expire with no work done. The problem is that he is a neighbor and we don't want to start something within our neighborhood. Just a crappy situation with a (IMO) dishonest mechanic.
/ENDRANT
/ENDRANT
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NMTerras
Suspension Lift
- Location
- New Mexico
Understanding you don't want to create a problem with a neighbor, I will still tell you based on what you described above you would have some valid complaints against this a-hole, most notably negligent misrepresentation and/or fraudulent misrepresentation. Just in case you change your mind...
Bro trust me I am ready to test my shoe size in his a-hole. My parents however, not so much. And since they are paying for it I am not arguing. I am only accepting their payment because they allowed this to go on even though they knew something wasn't right, and they know that if I had been them in that situation I would have been in his shop daily having him redo it.
- Location
- Western Massachusetts
I've been watching this thread since the get-go.
Glad you got your X fixed up back to snuff, sorry your neighborhood mechanic effed you guys like that. Guessing he won't be seeing any more business from you? Tell your friends, too...
Glad you got your X fixed up back to snuff, sorry your neighborhood mechanic effed you guys like that. Guessing he won't be seeing any more business from you? Tell your friends, too...
I've been watching this thread since the get-go.
Glad you got your X fixed up back to snuff, sorry your neighborhood mechanic effed you guys like that. Guessing he won't be seeing any more business from you? Tell your friends, too...
Yeah exactly it'll bite him in the a$$ in the end
- Location
- S.Subs of Chicago, IL.
glad to hear you don't hear...get it...I hear...but you don't hear thingy...WHAT?!?!?