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Showing results for tags 'valves'.
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I had the dreaded code 52 (knock sensor) so I decided to change the knock sensor harness and after seeing how bad the sensor looked I changed it too. Since I had the plenum off and was looking at the valve covers I decided to measure the lash - all the intakes were fine and all the exhausts were too tight. I bought one if the tools which helped on some of the valves but I could not position it on others. On those I used a bent screwdriver. The curved metal tool which I found frustrating at first actually was quite helpful. The trick is positioning it on the edge of the bucket. I used a pointed tool and small magnet to extract the adjustment shims. I have always been good at math but the first time I tried to replace the shims, 3 did not work out right so another trip to my toyota dealer. All in all quite a job, Broke the EGR while removing the plenum so it is blocked off/ disconnected - for now and probably for a while to come..