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4WD noise from front end ,2000 Subaru outback wagon
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4WD noise from front end ,2000 Subaru outback wagon -
02-28-2007
, 07:47 PM
#2
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hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod |
boots and make sure they're not cracked open if you're hearing any
clicking.
For vibration... I'd have your wheel bearings looking at for
starters. ANd that car is also old enough that some of the suspension
components are perhaps due for replacement? The tires may be
complicit in this but given the age of the vehicle, I don't know that
I'd bet o nthem as the root cause.
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Todd H.
2001 Legacy Outback Wagon, 2.5L H-4
Chicago, Illinois USA
#3
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hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod |
Possibly torque bind.
What was wrong with the old tires? Were you driving with a 'donut spare'
or different sized tires? Are the new super snows all the same size?
Carl
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to reply, change ( .not) to ( .net)
#4
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hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod |
aggressive and deep grooves. The rubber rumbles because the deep grooves
allow it to squirm around more. If you hear more noise while taking slow
corners, then it's likely that you're hearing a cacophony of different
tires noises, where the inner tires travel slower and the other tires
travel faster around the apex.
However, if you can also feel a vibration through the steering during
this time, then it's a mechanical problem, not a tire problem.
Yousuf Khan
--
There is no failure, only delayed success
#5
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fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success |
turning at very slow speed on dry pavement.
this did not happen until the pavement was dry. and it did not happen
with my all season regular tire.
probably a mechanical problem, and was thinking it might be the 4WD
system...
I don't drive it much (its a second car), so wonder also if its a
liquid ,hydraulic type of problem??..
thanks
Rod
#6
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On Mar 1, 5:59 pm, Yousuf Khan <bbb... (AT) yahoo (DOT) com> wrote: fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success thanks for al the replies...I hear and feel vibration , just when turning at very slow speed on dry pavement. this did not happen until the pavement was dry. and it did not happen with my all season regular tire. probably a mechanical problem, and was thinking it might be the 4WD system... I don't drive it much (its a second car), so wonder also if its a liquid ,hydraulic type of problem??.. thanks Rod |
will be a fuse box. One position in the box will accept a spare fuse
(15A IIRC) and placing the fuse there should force the Duty Solenoid C
to place the tranny in front wheel drive (FWD). If the vibration during
dry pavement, tight, slow turns is eliminated, that is 'usually'
diagnostic of an internal transmission problem. A few people have
reported that multiple drain/refill/drive cycles OR a full 'power flush'
have cured the problem. The solenoid's wiring might be damaged but most
people need the tranny repaired/replaced.
Confirm that the tires are all the same size and manufactirer/model AND
that they have proper air pressure as outline in the manual or on the
door pillar. Different sized tires can trigger engagement of the AWD
because an undersized tire is detected as slippage.
Carl
--
to reply, change ( .not) to ( .net)
#7
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fotoman wrote: On Mar 1, 5:59 pm, Yousuf Khan <bbb... (AT) yahoo (DOT) com> wrote: fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success thanks for al the replies...I hear and feel vibration , just when turning at very slow speed on dry pavement. this did not happen until the pavement was dry. and it did not happen with my all season regular tire. probably a mechanical problem, and was thinking it might be the 4WD system... I don't drive it much (its a second car), so wonder also if its a liquid ,hydraulic type of problem??.. thanks Rod I didn't catch if your car is stick or auto. If auto, under the hood will be a fuse box. One position in the box will accept a spare fuse (15A IIRC) and placing the fuse there should force the Duty Solenoid C to place the tranny in front wheel drive (FWD). If the vibration during dry pavement, tight, slow turns is eliminated, that is 'usually' diagnostic of an internal transmission problem. A few people have reported that multiple drain/refill/drive cycles OR a full 'power flush' have cured the problem. The solenoid's wiring might be damaged but most people need the tranny repaired/replaced. Confirm that the tires are all the same size and manufactirer/model AND that they have proper air pressure as outline in the manual or on the door pillar. Different sized tires can trigger engagement of the AWD because an undersized tire is detected as slippage. Carl -- to reply, change ( .not) to ( .net) |
#8
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wow thats a wealth of information, thanks Carl. will check it out.... got a snow storm today, and car drove perfectly, went into AWD as soon as it got slippery etc.. will check the solenoid fuse when it dries up again. ...i assume the drain/refill/drive cycles means transmission fluid servicing. thanks Rod On Mar 1, 10:24 pm, Carl 1 Lucky Texan <alcky... (AT) swbell (DOT) not> wrote: fotoman wrote: On Mar 1, 5:59 pm, Yousuf Khan <bbb... (AT) yahoo (DOT) com> wrote: fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success thanks for al the replies...I hear and feel vibration , just when turning at very slow speed on dry pavement. this did not happen until the pavement was dry. and it did not happen with my all season regular tire. probably a mechanical problem, and was thinking it might be the 4WD system... I don't drive it much (its a second car), so wonder also if its a liquid ,hydraulic type of problem??.. thanks Rod I didn't catch if your car is stick or auto. If auto, under the hood will be a fuse box. One position in the box will accept a spare fuse (15A IIRC) and placing the fuse there should force the Duty Solenoid C to place the tranny in front wheel drive (FWD). If the vibration during dry pavement, tight, slow turns is eliminated, that is 'usually' diagnostic of an internal transmission problem. A few people have reported that multiple drain/refill/drive cycles OR a full 'power flush' have cured the problem. The solenoid's wiring might be damaged but most people need the tranny repaired/replaced. Confirm that the tires are all the same size and manufactirer/model AND that they have proper air pressure as outline in the manual or on the door pillar. Different sized tires can trigger engagement of the AWD because an undersized tire is detected as slippage. Carl -- to reply, change ( .not) to ( .net) |
approach is to drain and replace fluid 2-3 times(since most home
mechanics cannot drain the torque converter, a few cycles of draining
will be required to really assure mostly fresh fluid), driving a few
days in between, hoping to dissovle gummy depostits on the solenoid
seat/valves I guess. A 'power flush' is best done by a shop and actually
replaces all the fluid.
You may want to search 'torque bind' here and/or at www.ultimatesubaru.org
Carl
--
to reply, change ( .not) to ( .net)
#9
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fotoman wrote: wow thats a wealth of information, thanks Carl. will check it out.... got a snow storm today, and car drove perfectly, went into AWD as soon as it got slippery etc.. will check the solenoid fuse when it dries up again. ...i assume the drain/refill/drive cycles means transmission fluid servicing. thanks Rod On Mar 1, 10:24 pm, Carl 1 Lucky Texan <alcky... (AT) swbell (DOT) not> wrote: fotoman wrote: On Mar 1, 5:59 pm, Yousuf Khan <bbb... (AT) yahoo (DOT) com> wrote: fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success thanks for al the replies...I hear and feel vibration , just when turning at very slow speed on dry pavement. this did not happen until the pavement was dry. and it did not happen with my all season regular tire. probably a mechanical problem, and was thinking it might be the 4WD system... I don't drive it much (its a second car), so wonder also if its a liquid ,hydraulic type of problem??.. thanks Rod I didn't catch if your car is stick or auto. If auto, under the hood will be a fuse box. One position in the box will accept a spare fuse (15A IIRC) and placing the fuse there should force the Duty Solenoid C to place the tranny in front wheel drive (FWD). If the vibration during dry pavement, tight, slow turns is eliminated, that is 'usually' diagnostic of an internal transmission problem. A few people have reported that multiple drain/refill/drive cycles OR a full 'power flush' have cured the problem. The solenoid's wiring might be damaged but most people need the tranny repaired/replaced. Confirm that the tires are all the same size and manufactirer/model AND that they have proper air pressure as outline in the manual or on the door pillar. Different sized tires can trigger engagement of the AWD because an undersized tire is detected as slippage. Carl -- to reply, change ( .not) to ( .net) Yes, a few folks have fixed 'torque bind' with fluid change(s). The DIY approach is to drain and replace fluid 2-3 times(since most home mechanics cannot drain the torque converter, a few cycles of draining will be required to really assure mostly fresh fluid), driving a few days in between, hoping to dissovle gummy depostits on the solenoid seat/valves I guess. A 'power flush' is best done by a shop and actually replaces all the fluid. You may want to search 'torque bind' here and/or atwww.ultimatesubaru.org Carl -- to reply, change ( .not) to ( .net) |
#10
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Carl: I sure it was 'torque bind', but car had been sitting for three weeks in subzero temperatures. fluid might have been cold??...it has since snowed, and I gave the car a good run in the snow, and could hear when the 4WD kicked in as I was giving it a run...intentionally causing slippage so as to activate the 4WD. Anyway, the car is running perfectly again now...I will replace the fluid anyway! Rod thanks for the further info and website too. On Mar 2, 11:06 pm, Carl 1 Lucky Texan <alcky... (AT) swbell (DOT) not wrote: fotoman wrote: wow thats a wealth of information, thanks Carl. will check it out.... got a snow storm today, and car drove perfectly, went into AWD as soon as it got slippery etc.. will check the solenoid fuse when it dries up again. ...i assume the drain/refill/drive cycles means transmission fluid servicing. thanks Rod On Mar 1, 10:24 pm, Carl 1 Lucky Texan alcky... (AT) swbell (DOT) not> wrote: fotoman wrote: On Mar 1, 5:59 pm, Yousuf Khan <bbb... (AT) yahoo (DOT) com> wrote: fotoman wrote: hi: i got super snow tires on all four wheels....and now on bare pavement I get vibration from front end when turning corners at slow speeds. ....would this be because of the sticky tires? or do I have to grease,oil something in the transmission 4WD ??? thanks Rod In general, snow tires produce a lot of noise on dry pavement due to the aggressive and deep grooves. The rubber rumbles because the deep grooves allow it to squirm around more. If you hear more noise while taking slow corners, then it's likely that you're hearing a cacophony of different tires noises, where the inner tires travel slower and the other tires travel faster around the apex. However, if you can also feel a vibration through the steering during this time, then it's a mechanical problem, not a tire problem. Yousuf Khan -- There is no failure, only delayed success thanks for al the replies...I hear and feel vibration , just when turning at very slow speed on dry pavement. this did not happen until the pavement was dry. and it did not happen with my all season regular tire. probably a mechanical problem, and was thinking it might be the 4WD system... I don't drive it much (its a second car), so wonder also if its a liquid ,hydraulic type of problem??.. thanks Rod I didn't catch if your car is stick or auto. If auto, under the hood will be a fuse box. One position in the box will accept a spare fuse (15A IIRC) and placing the fuse there should force the Duty Solenoid C to place the tranny in front wheel drive (FWD). If the vibration during dry pavement, tight, slow turns is eliminated, that is 'usually' diagnostic of an internal transmission problem. A few people have reported that multiple drain/refill/drive cycles OR a full 'power flush' have cured the problem. The solenoid's wiring might be damaged but most people need the tranny repaired/replaced. Confirm that the tires are all the same size and manufactirer/model AND that they have proper air pressure as outline in the manual or on the door pillar. Different sized tires can trigger engagement of the AWD because an undersized tire is detected as slippage. Carl -- to reply, change ( .not) to ( .net) Yes, a few folks have fixed 'torque bind' with fluid change(s). The DIY approach is to drain and replace fluid 2-3 times(since most home mechanics cannot drain the torque converter, a few cycles of draining will be required to really assure mostly fresh fluid), driving a few days in between, hoping to dissovle gummy depostits on the solenoid seat/valves I guess. A 'power flush' is best done by a shop and actually replaces all the fluid. You may want to search 'torque bind' here and/or atwww.ultimatesubaru.org Carl -- to reply, change ( .not) to ( .net) |
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