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post #1 of 3 (permalink) Old 10-09-2013, 08:29 PM Thread Starter
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Join Date: Nov 2010
Location: Moorseville, North Carolina
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graon noise

im having a groan noise coming for the rear of the car. as your getting up in speed you can hear it more and when you come to a stop you can hear it the best. the sound gets faster as you speed up and slower as you slow down. any ideas

1997 Thunderbird 4.6L
New paint on tops, Magnaflow high flow cat system and custom 2 - 2 1/2 Exhaust ,J-Mod and P.I. head and intake swap(performed by RobertP @ www.RobsTireAndAuto.com ) Steeda Underdrive Pulleys, Mark VIII TC, AEM dry flow air filter, Blacked out tail lights and custom painted headlights (performed by my wife) tuned by DON at http://www.lasotaracing.com/

waiting to hear theses kooks


http://www.cardomain.com/ride/391835...rd-lx-coupe-2d
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post #2 of 3 (permalink) Old 10-09-2013, 08:37 PM
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Keep it simple, check for any abnormal wear patterns on the tires and for proper suspension geometry/alignment specs. There's also the possibility the sound is coming from the differential or wheel bearings. If you rotate the tires (front to back on the same side) does the sound follow the tires? How long has it been happening? How long have you had the tires?

-Brandon
97 Laser Red Thunderbird LX 161k, Stage 2 4.6L 2v N/A | 300 BHP (255 RWHP, 290 RWTQ) | 13.95 @ 97.58 | Build details | Pics at the Lorain Assembly plant
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post #3 of 3 (permalink) Old 10-09-2013, 08:48 PM Thread Starter
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Join Date: Nov 2010
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the tires are new (nitto 555) but it just started probably a week ago im gonna jack it up tomorrow figure I would ask first to make sure im looking in the right spot

1997 Thunderbird 4.6L
New paint on tops, Magnaflow high flow cat system and custom 2 - 2 1/2 Exhaust ,J-Mod and P.I. head and intake swap(performed by RobertP @ www.RobsTireAndAuto.com ) Steeda Underdrive Pulleys, Mark VIII TC, AEM dry flow air filter, Blacked out tail lights and custom painted headlights (performed by my wife) tuned by DON at http://www.lasotaracing.com/

waiting to hear theses kooks


http://www.cardomain.com/ride/391835...rd-lx-coupe-2d
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