Question about Lexus LS 400

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What is wrong with My Lexus LS 400, reverse gear was burnt but was fixed. After repairs it started consuming much fuel, raw fuel comes out of the exhaust, the oil was changed it was mixed with Fuel.

Takes more fuel now than ever before the gear box was fixed

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  • Lexus Master
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You really need this fixed fast for if you have raw fuel coming from your exhaust your catalytic converters must not be working. If they were working they would be running a extremely high temperatures and be a fire hazard.
You most likely have damaged exhaust valves causing this problem, a compression test will confirm if this is the case. The other possible causes are bad injectors, coils, spark plugs and ignition timing.

Posted on Mar 30, 2015

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Posted on Jan 02, 2017

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