Question about 1994 Lexus LS 400

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1994 lexus es300

Sometimes when i reach 40 mph the rpm gets real high then it shifts and every blue moon it might act like it wanna cut off

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Check your thermostat. You could have a bad one or old one.If you have a bad one it can block the water intake to the ingine, thus causing your engine to work harder, and sometimes loose power. Get your thermostat checked asap before you cause major damage to your engine.

Posted on Oct 21, 2008

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