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2002 Hyundai Santro Groans While Cruising
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nura
Novice
Jun 4, 2013, 1:45 AM
Post #1 of 10
(2360 views)
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2002 Hyundai Santro Groans While Cruising
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Year of vehicle 2002
Make of vehicle Hyundai
Model of vehicle Santro LS manual transmission (aka Atos in other countries)
Engine size 1.1L
Kilometers 113,000
Hi Everyone!
I am from India & this is my first post here.
My car is making a barely audible groaning noise from the front at low (0 - 25 kmph) speeds. I hear it a little more during deceleration (foot off the gas pedal) than acceleration. Funnily, when the car is slowing down, the noise is a little low-pitched when it starts & then becomes more high-pitched, then it dies down for a second or two & then recurs in the same fashion. I get the weird feeling that, although the car is slowing down, something inside is speeding up for a bit & then slowing down & the cycle is repeating itself a few times before the groans finally die down completely as the car gets to near zero speeds.
Engaging & disengaging the clutch has no effect on the noise. The noise seems to disappear at higher speeds. I am also unable to reproduce the noise by pressing/ releasing the accelerator pedal when the car is standing still with the engine switched on.
I have taken it to the Hyundai workshop a few times. They changed the aircon compressor but that didn't help at all. Maybe there was another noise too, which has gone but this groan is certainly still there. Another time they cleaned the throttle body & the car is accelerating more smoothly but the noise is the same.
The noise isn't loud at all & I have been living with it for many months but of late it has really been bugging me. Will sincerely appreciate your help in identifying the source of this groan.
Many thanks in advance.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 4, 2013, 4:48 AM
Post #2 of 10
(2327 views)
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Re: 2002 Hyundai Santro Groans While Cruising
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By nature noises are difficult to describe and be sure of too much without witnessing it but not all is lost.
As I read this the noise is directly related to the speed of the vehicle as a whole not so much engine so need to concentrate on things that are moving with the car.
That list includes wheel bearings, brakes, tires and wheel trim parts, drive shafts and associated parts/bearings.
Some other can be mounts for engine and trans not held securely in place.
It's actually too bad that A/C compressor was blamed IMO as that should have been easier to know if the source of a noise.
Some things to help target will be if noise changes with steering, going around corners, speeds you noted already, braking. Note if one makes the noise better or worse.
Shops and the mechanics may have difficulty if they can't reproduce the noise so if possible for your exact situation you may have to find a place or mechanic that can witness it going with you or driving it at the times and way you notice it.
Look at tires for clues. Even wear. Rotating them can make unseen noises if tire related move with where they go and change the noise. Those are clues to narrow down the search for the exact source. A guessing game of tossing items gets costly and unproductive,
T
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nura
Novice
Jun 4, 2013, 4:58 AM
Post #3 of 10
(2322 views)
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Re: 2002 Hyundai Santro Groans While Cruising
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A few more things that I just remembered.
The floor of the car starts vibrating whenever I engage 1st gear & release the clutch pedal to start moving from standstill. Workshop says weak clutch. But the clutch was overhauled by them just 8 months ago. They had also replaced the lower arm ball joints & tie-rods as well as the joint kit in the differential side front axle at the same time. From what I remember, the car was driving fine for a few months after these repairs.
Is the other (non-repaired) front axle now failing & causing the groaning noise & vibrations?
Thanks in advance.
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nura
Novice
Jun 4, 2013, 5:59 AM
Post #4 of 10
(2314 views)
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Re: 2002 Hyundai Santro Groans While Cruising
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Thank you for your wonderful reply, Tom.
The tires were changed just 2 months ago & aren't showing any unusual tread-wear. Probably too early anyway. Forgot to mention that the front right wheel-bearing was replaced about 5 weeks ago. Maybe I should get the front left bearing replaced too. There is no clicking noise while turning left or right but I guess that doesn't rule out a drive shaft problem, does it? The groaning noise often appears after I apply the brakes but that's probably because the vehicle then comes within the speed-range for the noise to appear. The groaning noise is there even if I am only cruising with feet off all pedals.
Somehow I have begun to suspect the drive shaft(s). Any tests you would recommend to confirm?
Thank you once again for taking out the time to reply.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 4, 2013, 6:02 AM
Post #5 of 10
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Re: 2002 Hyundai Santro Groans While Cruising
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The clutch job is a bit invasive to the car. Mounts, exahaust parts could be too close to body parts or plain touching under loads or shifts in weight. Clutch itself parts or the job may have been the problem??
There probably is more than just one thing going on. Stinks but there's only so much I/we can guess at or suggest the likely trouble spots for these things without being right there,
T
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 4, 2013, 6:18 AM
Post #6 of 10
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Re: 2002 Hyundai Santro Groans While Cruising
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Ooops - you replied while I was typing. Some new bearing don't work out so well nor other new parts. These may be "pressed in" wheel bearings that alone can cause trauma on things or hard on the new bearing. They can fail with different symptoms but commonly a growl that get better or worse while turning such that weight is shifting from one side to the other. Driveshafts and the joints generally are load sensitive meaning better or worse while engine is applying forces for power or slowing and also worse when wheel are turned - that being the most common but not always so again these things can be tough to pin down.
New tires should rule out tires themselves - not always with much of anything!
BTW - not here all the time. Others always welcome to suggest away things that missed my notice or interpretation of symptoms and when they occur.
Again: This may take a mechanic that has the time AND know how to find. Not all shops (can't know even locally to me) which ones allow how much time for what never mind situations around the world?
Some real tricky stuff like this here some shops and car owners would allow a tech/mechanic to take cars for a day to use for their own commutes or needs to witness and some will not allow that.
Locally the independent shops have more chances of finding tough problems with plain noises and vibrations with more time allowed but still shop by shop rules.
Keep trying as it's warning you of something not right,
Tom
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nura
Novice
Jun 4, 2013, 11:19 PM
Post #7 of 10
(2286 views)
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Re: 2002 Hyundai Santro Groans While Cruising
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Thank you once again, Tom, for your excellent reply. I am going to take the car back to the Hyundai workshop, as well as to an independent technician in a few days. Will certainly post their findings here again & request for more advice.
Thanks a ton for all your help.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 5, 2013, 1:50 AM
Post #8 of 10
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Re: 2002 Hyundai Santro Groans While Cruising
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You are welcome nura. Good luck with the finding and the fix of this. Please do let us know what is found. I suggest you describe this to whatever mechanic at whatever shop the history of work already done and when you notice this.
Try hard to speak to the person that will take this on not just a shop's service person who directs work to a mechanic. Sometimes here you would never meet and know who was assigned the job at a larger shop and with noises especially you really should speak directly to the person.
Again, not always here but I am quite a bit. Others are for assorted suggestions for problems. Know that most regular people here will have less specific information for vehicles sold to places other than N. America (Canada and the US) as specifications are different for where the vehicle was to be sold when new,
Tom
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nura
Novice
Jun 5, 2013, 9:56 AM
Post #9 of 10
(2264 views)
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Re: 2002 Hyundai Santro Groans While Cruising
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Great advice again, thanks, Tom.
The rules are the same here, too, but developing a good rapport with the service adviser & floor in-charge does help immensely. Most times if I am willing to wait a couple of days, I can ask for a particular mechanic too.
The plot gets thicker, though. Now there's a groan even at idle but it wasn't there in the morning & started hearing it only tonight. Alternator bearing? Like you mentioned earlier, there are probably several issues happening together.
The funny thing is that for 15-20 minutes every morning the car really runs like a dream without any groans & moans whatsoever. Aren't cars lovable creatures?
Will certainly keep you posted & thanks a ton for taking out the time to reply.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 5, 2013, 2:36 PM
Post #10 of 10
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Re: 2002 Hyundai Santro Groans While Cruising
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One more for now and wont be around for some time soon. A bearing going bad on an alternator (a belt driven item) should be easy to determine. You can replace just bearings if they are good otherwise. Simply taking the belt off and spin items for feel for those type things. You DO NOT or should not have to tell a mechanic how to check out stuff like that.
See what they come up with. I'll catch up later and will be off line as said,
Tom
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