ADT Posted March 8, 2013 Share Posted March 8, 2013 I have 103,000 on my 2001 GS 430 The shop says I need tochange the timing belt. I figured it had a chain any way; I am having noproblems with the engine. What are some of your opinions? Quote Link to comment Share on other sites More sharing options...
James Horning Posted March 9, 2013 Share Posted March 9, 2013 The GS430 is a great car, a commodity in the used market. 1) Perform timing belt replacement, replace water pump and drive belt . Flush cooling system. 2) Perform timing belt replacement , replace water pump, thermostat , timing belt idler pulleys and tensioner. Replace drive belt . Flush cooling system . A) Use all Lexus parts . B) Use a timing belt kit ( aftermarket ) by Gates ... etc . That includes all parts, water pump and thermostat additional. My reasoning, if you are keeping the car, do it right , perform (2) above. If cost is a issue, get a complete aftermarket kit , all the hard parts ( tens, idlers ) are high quality . Job( 2) parts (B) . If you need to save up a few months to do it right , do it , you have time. I feel obligated always to give the best advise , this is the repair methods we used 15 years ago before the price hunt became mainstream, water pumps leak, idlers fail ( dr.side) thermostats are very important for proper warm up time and time to closed loop fuel control. I hope this helps with your educated decision. Quote Link to comment Share on other sites More sharing options...
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