Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

cold start knock knock

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Old 09-04-09, 05:14 PM
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woodpecker
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Default cold start knock knock

i have a stock 1jz tt soarer, when its started cold, the engine makes a knocking noise, its pretty loud as i can hear it clearly inside the car. the knock speeds up as the rpm goes up. however the noise goes away when the car has been driven for a bit and warm, and it'll idle very queitly. can anyone tell me what the problem is?
Old 09-05-09, 09:22 AM
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BattleVer
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If its rod knock, the motor will blow up soon if you dont change the bearings.
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