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Shadow

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Posts posted by Shadow

  1. I believe there is no replacement interval for pulleys and seals, aka, inspect and replace only when necessary.

    Perhaps you can leverage the price you paid for the service when negotiating with the service manager, if the price sound like it should includes installing the seals and pulleys, then raise hell with them. How much did you pay for the service?

  2. Yes, noise and vibration drive me nut.

    I have been trying to get my 91 as smooth and my wife's 90 and after two sets of tires, one set of wheel, and some renew suspension and mine is still not as smooth. The wife hardly notice the difference but I certainly can.

    And then there was a rattle noise right in front of me (the driver seat) that comes a goes. I removed the instrument panel and padded all wirings, joints, and mating surfaces the best I could and the still no joy. Fortunately, for my sanity the noise went away recently on its own, otherwise, a steering column tear down is on order.

    And then there are those Lexus forums which I won't say anything about...

  3. Many things can cause vibrations during braking. Good rear carrier bushings "dampen" vibrations but torn carrier bushings amplify vibrations. Those bushings are exposed to tremendous stress and are the weakest link in the rear suspension. ADUS 505 is the part#.

    A shop across my work place stock ADUS bushings so if anyone want them, PM me and I'll get them for you.

  4. The torque test measures how much force it takes to turn the ball in the joint. Obviously, a worn ball joint will be lose (low torque) and good ball joint will be tight. A good ball joint should not have any play and should not be smooth when moved (hint: tight).

  5. RPM gauge gets its signal from the igniter #1. You can attach an external rpm gauge to the igniter #1 and compare the RPM readings. If they both read the same then it's the igniter which I highly doubt since the ignition coil get their signals from the igniters also. Bad igniter signal would translate to bad coil signals, thus, bad spark on the plugs. Alternatively, you can also compute the RPM by attaching a scope to igniter #1 and observe the duty cycle and compute the RPM and compare.

    I highly suspect the problem lies in your gauge, more specifically, the capacitors. Change those CAPS will do wonders to your instrument panels. The good part is CAPS are cheap and relatively easy to replace if you can solder.

  6. Salacak,

    The gauge signal for RPM is independent of speed signal so collect some graph points with RPM vs. speed in highest gear (>50mph) for comparisons to other 1st gen LS to see approximately how much your gauge is out of whack. Post your data I'll compare with my LS.

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