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Discussion Starter · #1 ·
I know intermittent problems are next to impossible to diagnose unless you're actually there when it's going on, but hopefully this may sound familiar to somebody out there! My 1990 Plymoth Grand Voyager (3.3 w/ 4 spd auto) has been making a screeching/whining kind of noise, sounds like it's coming from the front driver side...The best way to describe the noise would be if you've ever flicked the wheels on a toy car or a pulley really hard, and you get that screeching/buzzing/whining kind of noise.....Seems like when it does happen, it starts around 45, and when you slow down, it cuts out again around 20-25.....The noise seems independent of engine speed, if the noise starts and you floor it, the noise doesn't seem to change with revs. Seems like it happens more often when it's cold and damp out...not throwing any codes, no performance issues, just totally ANNOYING!! Finally got the sound to make itself known when my mechanic was in the car, and he said he didn't have the slightest....My thinking is: It can't be an axle shaft or hub, because the noise would be constant and vary with revs, right? Transmission or differential? But again, wouldn't that make the noise speed sensitive? I'm almost thinking maybe it has something to do with wind at speed, but yet again, if it were something like that, wouldn't it be an all the time thing?? ANY ideas or thoughts would be greatly appreciated, I'm really nearing the end of my rope and hate to trash the van, it's still like new inside, and I just repainted it last year!! Thanks in advance!!
 

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Discussion Starter · #5 ·
Sorry for taking so long to re-visit this, but I've been busy & out of town.....The noise started again last night, and I threw it in nuetral & killed the engine...noise still there.....Now, I'm getting an occasional low "growl" type noise, best way to explain it would be it sounds kind of like the noise you used to get with snowtires on clear dry pavement.....and a very slight vibration in the steering wheel.....I did the axle shafts @ hubs about a year and a half ago (less than 15,000 miles) so I'm wondering if maybe the parts were defective? Would I feel it in the steering if it were a differntial/transmission isue? Thanks again for any help.....
 

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Discussion Starter · #9 ·
Took advantage of the tiny window of opportunity we had here weather wise....Changed the front hubs, noise still there....I guess next step would be axle shafts once the weather gets a little more bearable, snow in the offing here.....
 

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Discussion Starter · #10 ·
Noise is pretty much permanent now, more of a growling/grinding sound.....when I throw it in neutral and kill the engine, the noise doesn't go away....this is really getting annoying!! Hoping it's just a CV joint or something easy.....when I did the hubs though, the shafts still seemed to be solid and tight.....
 

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Discussion Starter · #15 ·
You're not the first person I've heard mention the output bearings.....I'm guessing that's a job for the tranny shop and I'll get raked over the coals? Or is it within the realm of a good do-it-yourselfer, one of those jobes that's not neccessarily difficult, just an involved pain in the [I should have my mouth washed out with soap for using such terms]? I've been trying to find some pics of them on Google images, but can't .....
 

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Discussion Starter · #17 ·
Checked the pads when I changed the hubs.....plenty of meat left! When the noise started, it was a high pitched almost buzzing noise.....I'm beginning to think in terms of the output bearings, as I'm starting to feel it a little in the steering wheel now.....If it is the bearings, I'd be GREATLY disappointed, as that tranny only has MAYBE 40k on it......105ish on the van, but like most overdrive trannies, the thing was replaced NUMEROUS (as in 7) times....
 

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Discussion Starter · #22 ·
I know it's not a fair question to ask, because every shop & city has different labor rates, but what would a very rough ballpark be for something like this, assuming that's even the problem.....It sounds like one of those jobs where you're into it for 1200 in labor to replace a $30 part........If we're looking at over 2 grand, the yard may be calling....
 
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