SC430 - 2nd Gen (2001-2010)
Old 01-06-15, 12:47 PM
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Eagle Gt's thump thump tire pressure and more

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Old 11-01-09, 03:43 PM
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Harold57
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It may take someone with either a lot of time, money or a lot of car knowledge to figure out how to deal with it if it is the suspension.
Old 11-02-09, 03:23 AM
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howdybob22
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Originally Posted by azkaty
Finally had the time this afternoon to check the tire pressures: RF38, RR36.5, LF 37.5, LR 36.5. Adjusted all to 34. Car handles and rides 100% better....no more bouncing (jumping feeling) over imperfections in the road, handling feels "light" and responsive rather than "heavy". Can't believe the difference. However, the vibration is still there at 65-68.
Some members here got rid the problem with road force balancing. You may need to look around for a reputable shop that has the equipment (Hunter GSP9700 if I recall) to do it.
Old 11-02-09, 09:32 AM
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^^^^+1 howdybob22-I believe azkaty got the tires at Discount Tire. MOST DT's have the road force machine. Problem is that the lesser the meat on the rim, the more likelihood it will become slightly off-seated when it is mounted and you drive away.

I've actually had my wheels balanced and triple-checked on the RFM at DT and then drove the car off and returned back only to find out that it was out of balance!

azkaty should be good now after a good RFB at DT on the machine and the proper psi. 18's shouldn't be doing this...typically a 20" problem.
Old 11-02-09, 04:13 PM
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azkaty
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SC, set an appointment for this friday @ 12:30...the rep said that they will make it right ( they have always done this for me) and we will see..since I reduced the tire pressure I can't believe the difference in the ride quality...yes, it rides "stiff" for the 1st 15 minutes, but then rides great ( except for the vibration)..always concerned with dis-mounting and mounting new tires, and doing damage to the wheels...I will keep you up-to date with the next step...thank you soo much for your info and support...Bob
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