Question about 1993 Lexus Ls 400

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When I press on the break the reverse light comes on and it seem to down shift. Also heavy smoke appears when starting my vehicle and cannot pass MD inspections. Do you think there is a power steering leak or the catalyst converter needs to be replaced on my 1993 LS 400?

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  • Kaci Roar Nov 13, 2012

    man im having the same problem. And i dont know how to fix either of them. I dont think they are related as to thesmoke and the reverse light but i dont know what is causing either of the problems

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I may have answer for the first problem. I found the cable in the trunk broken and shorted to other wires. It happened right at the driver side hinge. Because the cable were bending everytime the trunk open and close, the electrical cable broken and exposed. It messed up my 92 ls400 instrument light when I step on the brake.

Posted on Oct 27, 2010

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The smoke is likely from the Air Control Valve that comes from the power steering pump. When it goes bad it sends power steering fluid into the intake manifold causing a whitish type of smoke similar to oil smoke. Ebay has the lowest cost I've noticed so far for the part.

Posted on Sep 25, 2013

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