From: JonB55198 on 29 Sep 2009 14:40 Ray, Thanks! this is all good info. I think i will start by getting a 4wheel alignment. That seems simplest. Tires look good at this point. My mechanic reported that the wheel bearings didnt' seem to have play in them. But i was suspicious that noise may begin prior to "play" or wobble. More background: After the accident the frame was pulled and aligned using a laser system by a local body shop. So i'm thinking the drive train lines up pretty well. When we put the engine/trans back in, it didn't seem to have a problem fitting back on the mounts. Also, this is a FWD vehicle (1993 toyota corolla) with 272kmiles. Tires in the front are ~10kmiles old yokohama avid TRZ (80kmiles tires).
From: Ray O on 29 Sep 2009 14:46 "JonB55198" <jonb55198(a)gmail.com> wrote in message news:01ee0050-47dd-450d-a873-cc86c2045ba5(a)j39g2000yqh.googlegroups.com... >> Yes, and it could have damaged stuff in the transaxle. > > Jeff, damaged "stuff" in transaxle soudns difficult to diagnose and > repair (ie costly)...right? The transaxle is pretty robust, and unless the case shows signs of damage, the likelihood that it is the source of the noise is pretty low. In my experience chasing weird noises that dealers had problems with, a methodical check in the order that I posted will reduce the chances that you will do unnecessary parts replacement and as a side benefit, identify the source of the noise. I didn't mention this before, but a mechanic's stethoscope might help you identify the source if you put the car securely on jack stands, put the car in gear, and then place the tip of the stethoscope (or screwdriver with a long shank) on the inboard side of the housing where the shaft enters the hub and on the transmission case where the shafts exit. Do this after you check the stuff that I posed before. -- Ray O (correct punctuation to reply)
From: JonB55198 on 29 Sep 2009 15:06 Ray, thanks again, i am going to try the things in the order you recommend and then report back to the group with my findings. Thank you so much -Jon
From: JonB55198 on 29 Sep 2009 15:55 scott, how many miles were on it when the bearing failed? -jon
From: Ray O on 29 Sep 2009 16:05 "JonB55198" <jonb55198(a)gmail.com> wrote in message news:9625f0bb-7d05-4678-bf88-1bd2ff746177(a)e12g2000yqi.googlegroups.com... > Ray, > Thanks! this is all good info. I think i will start by getting a > 4wheel alignment. That seems simplest. Tires look good at this > point. My mechanic reported that the wheel bearings didnt' seem to > have play in them. But i was suspicious that noise may begin prior to > "play" or wobble. > > More background: > After the accident the frame was pulled and aligned using a laser > system by a local body shop. So i'm thinking the drive train lines up > pretty well. When we put the engine/trans back in, it didn't seem to > have a problem fitting back on the mounts. > > Also, this is a FWD vehicle (1993 toyota corolla) with 272kmiles. > Tires in the front are ~10kmiles old yokohama avid TRZ (80kmiles > tires). The additional information is helpful. Laser systems have been around for a while and are pretty much state of the art for getting the chassis realigned properly. Before you spend money on a 4 wheel alignment, a good body shop should have done on after pulling the chassis so check to see if they did one. With this additional information, I'm guessing that the wheel bearings are the culprit but check the other stuff out because it only takes a few minutes. Wheel bearings can make noise even if there is no perceptible wobble. Does the noise change in loudness or pitch on a long sweeping left turn where the car's body mass is shifted on to the right side of the vehicle? If so, that is another indication of bad wheel bearings as is the 272,000 miles on the odometer. -- Ray O (correct punctuation to reply)
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