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Toyota Previa 1991 how do you fix knocking engine problem?


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2007-07-11 13:39:28
2007-07-11 13:39:28

Try and get someone to read the ECU codes, that will tell you if the problem is from the "Knock Sensor". If it is you will need to buy a new one and replace it. They are very expensive and can only be got from a Toyota Dealer. To fit your self Drill a hole under the front seat(Directly above the sensor) and replace from there. If you dont want to drill a hole you will have to drop the engine and that is not a cheap option on a previa.

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