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Old 05-31-2003, 05:35   #1 (permalink)
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Thud when stopping & starting

Does anyone have any insight into this one?

The car has done this ever since I've had her. It is very hard to explain but I'll try my best. When you decelerate and finally come to a stop there is a thud sound and the body of the car seems to lift or sink a bit. It's kind of feels like the suspension is not securely attached to the body and the body of the car catches up to the wheels! This only happens sometimes. Other times you can be stopped at a set of lights with the foot on the brake and when you go to take off and release the brake, the body of the car sinks and there's the thud again. It's like when you stall up the torque converter at the lights, you can feel the suspensions compressing because the rear end seems to lift. Then if you take the foot off the gas and release the brake slowly the car sinks again. I'm only guessing that it's a problem with the suspension, but could it be the transmission (auto) engaging or something weird? I've mentioned this to mechanics before and they've re-torqued the suspension but it still does it. Any clues? I hope I've explained it well enough!

Thanks in advance
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Old 05-31-2003, 05:53   #2 (permalink)
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Were the shocks changed to match your lowered springs?
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Old 05-31-2003, 06:00   #3 (permalink)
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Rear (or front) suspension bushings badly worn?
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Old 05-31-2003, 06:00   #4 (permalink)
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She was lowered before I bought her. The answer is "I'm not entirely sure". I took it to pedders when I was after a quote for sports ryders and they seemed to think that the shocks didn't match the springs. In fact the ride is still quite smooth for the current ride height. What do you suspect is happening?

In the last month there has been some high pitched squeeks from the rear when you hit bumps... bushes? The noise is much more recent than the thud.
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Old 06-02-2003, 20:33   #5 (permalink)
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Ok, took the car to fulcrum today. They hoisted the girl up and had a peek. Also took her for a test run. He couldn’t hear 2 of the three noises I complained about, but said that the Watts Link bushes were worn ($58.25) and also rear lower trailing arms (%137.16). Including labour the quote was $307.55. The chap said that if this work doesn’t fix the problem(s) then he’d be looking at brakes. I now know what’s on the car currently. KYB gas rears and Monroe GT gas fronts. He said they are both good products and match the ride height of the car. I got the impression that he thought the current set up was quite good. When I said that it corners like a steamer he said you could upgrade the sway bars at about $232.00 each to reduce body roll. Food for thought.
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Old 12-29-2003, 01:26   #6 (permalink)
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Re: Thud when stopping & starting

Ok here is an update. I got some transmission work done today. It's been shifting hard and squealing when revving high. I got the S1, S2, S3, S4 and S5 replace as well as a new internal filter and a complete fluid flush and not only are the tranny problems much better but (knock on wood) the thud has vastly improved if not vanished! woooosaaaaaa!
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Old 12-29-2003, 01:35   #7 (permalink)
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Re: Thud when stopping & starting

How much did the tranny job cost?
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Old 12-29-2003, 05:04   #8 (permalink)
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Re: Thud when stopping & starting

Quote:
Originally Posted by Spaniard
How much did the tranny job cost?
Well the whole job including the fluid flush and service, electric function check and band adjustment came to $629.66 but because I got a warranty with the car I only had to pay for the filter which wasn't covered by the plan so I walked out of the place having outlayed only $12.25
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Old 12-30-2003, 14:32   #9 (permalink)
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Re: Thud when stopping & starting

That's a good deal then isn't it!!!!
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Old 12-30-2003, 14:44   #10 (permalink)
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Re: Thud when stopping & starting

Yeah I'm pretty pleased They did a good job and I was impressed with their ability to diagnose problems from just listening to the box.
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