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2007 Impala SS OIL LEAK

21 messages,  Last post on Feb 28, 2009 at 7:41 AM

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#20 of 21 Re: Front hub bearings [scerami] by quietpro Feb 28, 2009 (7:34 am)
Replying to: scerami (Feb 20, 2009 6:28 am) I believe you can check hub bearings by jacking the car as if you were going to change the tire. Once the wheel is off the ground, try to "wiggle" the wheel...firmly attempting to turn it side to side, top to bottom (not spin). If it moves at all, there is a problem. Depending on where the movement is coming from, you can diagnose the problem. I'm not a mechanic by trade but if it wiggles in both directions, I'd say it's the bearings. If it only moves left to right, it's more likely a tie rod. If you have movement, you'll be better able to see where the problem lies by taking the wheel off and repeating the test directly on the rotor.   BTW, tie rods are a known issue on some Impalas (I think I have a problem with at least one of mine but haven't actually tested it). I didn't notice if you're still under warranty but even if you aren't, do some research and you may be able to convince the dealership or GM to cover the cost either fully or partially...depending on how much you care to fight about it.
#21 of 21 Re: 2007 IMPALA Front end vibration [jdc4] by quietpro Feb 28, 2009 (7:41 am)
Replying to: jdc4 (Jan 18, 2009 12:53 pm) Your rattling problem sounds like it is most likely a Intermediate Steering Shaft (ISS). It is a VERY common problem with many GM FWD cars. My 06 Impala and 02 Monte Carlo both had the same problem. There is a temporary remedy of lubricating the joint of the shaft but if you're under warranty, ask about it at the dealership. My 06 was fully covered under warranty and you won't believe how much you've likely gotten used to it (once it's fixed, you'll swear it's a new car again). Tie rods are another possibility and as stated in the earlier post, they are a fairly common problem as well. It should also be covered under the manufacturer's warranty although if they deny either problem exists, you're left to convince them it's there.

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