Tire thumping noise inside car - need advise - TCCoA Forums
 
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post #1 of 4 (permalink) Old 11-30-2016, 03:52 PM Thread Starter
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Tire thumping noise inside car - need advise

I need the forum's help in understanding this issue with my 1996 TB 4.6 with 121,000 miles. I have had a continuing issues with what I can only describe as a rather loud tire thumping noise inside the car - particularly in the rear seat. It is not a metallic noise and I do not believe it is a suspension part failure - perhaps a bushing? But, I can not detect any looseness in the rear suspension.

The noise occurs when the tire hits uneven pavement or ripples in the pavement. Perhaps it may be the tires - they are all rather old, but still have good tread. Could they have "harden" over the years?

I have replaced the front upper and lower control arms and ball joints, front sway bar links are good. I also replaced several rear suspension bushings. The front struts seems to be good even at 121,000 miles. I can barely push down on the front end. The front and rear suspension seems really tight. I can take corners and steep curves to the point where my wife is absolutely screaming at me to slow down.

I am at a lose to understand this issue and would appreciate any input that may lead me to correct the noise.

Thanks,

Glenn

1996 TB LX, 4.6, 120,000 miles, black with tan interior.
Dark tint and OEM "Sport" spoiler.

Last edited by Glenn; 11-30-2016 at 03:58 PM.
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post #2 of 4 (permalink) Old 11-30-2016, 04:09 PM
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Look and feel around the inside and outside of the tire's sidewalls for bulges. If you find any, get new tires. I had a similar situation on my truck. Tread looked fine on the 15 year old tires. However while on the road one day I all of a sudden heard what sounded as if I'd ran over some metal, but the tire wasn't going flat. I got to my son's house and began to search and poke around for a screw or nail in the right front tire. In the process I ran part of a steel belt under my finger nail. There had been a slight bulge in this tire for years, but I never thought much about it until this incident. The belt burst right through the weak rubber, but I still had good tread.

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post #3 of 4 (permalink) Old 11-30-2016, 05:41 PM
No, Mr. Lemmywinks, No!!!

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What about the rear swaybar endlinks?

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post #4 of 4 (permalink) Old 11-30-2016, 07:15 PM Thread Starter
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Both above suggestions are very good and I will check them both tomorrow.

Thanks,

Glenn

1996 TB LX, 4.6, 120,000 miles, black with tan interior.
Dark tint and OEM "Sport" spoiler.
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