SOURCE: 92 lexus es300 knock sensor
Need to remove the upper and lower air intake manifold. There are two knock sensors for the front and rear pistons banks. If you plan to do this yourself it is about 1 to 2 hours. While you are at it, there is a short coolant bypass hose sitting in the same spot, replace it. Another problem with the knock sensor is the wire harness used to connect the two knock sensors into one connection sometimes wears out and contacts the metal on the engine causing false signals to the ECM, so replace this cable also.
Just did this last summer on my 99 ES300. Pretty easy.
DIYr
SOURCE: How many O2 sensors on a 1997 Lexus ES 300?
according to the manual i have... it has three.... one in the exhaust manifold.... and two in the exhaust pipe..... slightly vauge on the exact location of the last two sensors... but looks like it is after the catylitic converter.
SOURCE: Hi can you tell me how much torque spectification
Cylinder head bolt tightening sequence - 1993-97 Remove the head from the engine. If prying is necessary, use a protected blade; take great care not to damage the mating surfaces of the head and block. Clean the head and block of all gasket material. Take great care not to gouge or scratch the mating surfaces. To install: Place a new gasket on the cylinder block. Make sure it is positioned correctly. Install the cylinder head in position. Lightly coat the head bolt threads and plate washers with engine oil. Install the bolts in the head. Uniformly tighten the head bolts in several passes in sequence, to 25 ft. lbs. (34 Nm). Mark the front of each bolt with a dot of paint. Following the correct order, tighten each bolt an additional 90 degrees. When complete, all the paint marks should face to the side of the engine. Again following the correct order, tighten the bolts another 90 degrees of rotation. When complete, the paint marks should face the rear of the engine, exactly 180 degrees away from the original starting point. Correct bolt torque is expressed as 25 ft. lbs. (34 Nm) + 90° + 90°.
SOURCE: I need to know where
Hi.
The sensor is located in the cylinder head, on the driver side.
The sensor is represented as part nr.3 in the diagram below:
Regards.
Ginko
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