Question about 1995 Lexus GS 300

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Overheating i have a 96 model Gs 300 3.0v 8 cyl engine,after driving a distance of 100 miles the engine starts overheating.i have removed the heads,checked them, done pressure testing, renewed head gaskets and am still getting the same problem.help

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Check that the cooling fan is starting, or that it is not starting when the motor already reaches too high temperature because of a faulty thermic switch.
Test also compression to ensure it is not a ring problem.

I assume you already tested cooland pressure to ensure it is not the water pump, and that you checked your car is not consuming coolant liquid, in that case it is either a leak or the head gasked had not been fit properly.

Posted on Feb 27, 2009

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Posted on Jan 02, 2017

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