Question about 1993 Lexus Ls 400

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My 93 ls400 has a powersteering leak. Everytime I put powersteering fluid and let it sit awhile a big puff of smoke comes out off my exaulst pipe when i crank the car . Can someone explain how this happens?And best way to fix it.

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The power steering pump and hoses are near to right engine side and exhaust pipe , go to workshop to repair , maybe a hose is broken

Posted on Aug 07, 2010

  • 4 Networks Aug 11, 2011

    Your powersteering reservoir tan must have a leaky,or the powersteering system is leaking on the the exhaust and into the innereds,or on top of the cat,so it blows smoke when cold start.but burns off after time.Get all hoses checked,replace gaskets around PWS pump,get a qualified mechanic to Inspect from underneath.


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Gen I-III have a power steering defect PS fluid pumps into system then out tail pipe, white smoke.Lexus fixed this in later models.. check the solution is there.

My 93 ls400 has a - 12_22_2012_6_47_38_pm.jpg

Posted on Dec 22, 2012


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Signs of power steering leak. smoke from under the hood on the driver side? 2 times this winter on -0 days after making a hard RH turn with in seconds i have smoke from under the hood and into the...

This may be as simple as a loose clamp on the powersteering return hose, you would need to put the car up and take a look at the powersteering lines or look for a stain or wet spot on fluid, if it smokes that bad then it must be hittting the exhaust, one problem ive seen is the rack leaks into the boots and when a hard turn is made and the boot closesit pushing the fluid out, so remove the clamp from each boot on the rack and see if oil runs out or just look and see if there oil on the boot ends, most of the time its one side that leaks.

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blue smoke = burning oil

however, your symptoms sound more like black smoke which means you are running rich.... this could be caused by leaking injectors

personally it sounds like you have multiple unrelated concerns... which do you want to address first

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I have a 2002 95 wagon and when i put in reverse

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Feb 08, 2010 | 1999 Saab 9-5

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92 lexus ls400 lets out a puff of smoke when u start it up but doesn't after start up

check power steering levels i have the same year Gen I-III have a power steering defect PS fluid pumps into system then out tail pipe, white smoke.Lexus fixed this in later models.. check the solution is there.


Dec 24, 2009 | 1992 Lexus Ls 400

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Do me a favor, check you radiator fluid level. Tell me if it is low. If it is.....I hate to say it, but you may have a blown head gasket or a cracked head. You are getting coolant into the combustion chambers.....

Mar 16, 2009 | 2007 Toyota Camry

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Big puff of white smoke at start up after sitting for several hours.

white smoke is water
blue smoke is oil.
nest time try and smell the white smoke see if it smells sweet?
if it does its antifreeze.
and also black smoke is fuel (like a leaky injector )
hope this helps

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