LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Timing Belt Done - Is my car knocking?

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Old 01-04-14, 11:51 AM
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Finn
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Here's mine for comparison. It seems loud but for some reason the garage walls and roof amplified the sound. This is hot idle with Mobil 1 0W-40.

You could also try how yours sounds without the plastic cover on top of the engine in case that is "rattling" or vibrating.

Old 11-13-19, 06:12 PM
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Sam1966
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Originally Posted by sayow
Video included below.

Maybe I am dreaming but my car idle sounds different than prior to me replacing my timing belt and water pump. Timing checked multiple times, not sure what else could have changed.

The car is very new to me and I am very new to the LS so perhaps its all in my head but I "thought" my car was near silent at idle prior to the work.

Is this a knock?

Please give it a listen and tell me what you think, some of you guys are freaking LS geniuses and I am learning a lot.. so thank you /bow

http://youtu.be/flL8WhmYDeE
Cam pulley was probably left loose common on that repair same issue about 1yr ago
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