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93cutlass_supreme
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When I start up my 93 Cutlass Convertible, I heard a Loud clank/Clunk noise every 2 to 3 seconds. It's not a rapid noise, and it only does this while in park. I can reverse smoothly, the car drives fast & smooth on the road and the transmission Shifts with no issues and never misses. Sound comes from under the vehicle and I can feel it sort of under the drivers seat. Engine is quiet and smooth so I know it isn't that. Any Ideas what this could be?

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Does it occur when accelerating from a stop or shifting gears? My moneys on the rear exhaust manifold being cracked as this sounds exactly like what my coupe has had for the last couple of years. Damage occurred from lack of a flexible part at the base of the downpipe that takes the stress off the manifold as the engine is rocked back and forth. Or you could be lucky and its just the exhaust heat shield banging around.

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