youbetcha! Posted March 7, 2010 Share Posted March 7, 2010 2003 LX 470 1) What are do I need to do at 90K besides the Timing Belt? I guess I should do the Water pump at the same time? 2) Spark Plugs? 3) What else? Thanks for your help! Quote Link to comment Share on other sites More sharing options...
1990LS400 Posted March 7, 2010 Share Posted March 7, 2010 Attached are the 90K maintenance requirements for a 2003 LX470 from the owners section of https://www.lexus.com A maintenance booklet containing these requirements should have come with your LX. The first scheduled spark plug replacement for your 03 LX is 120,000 miles -- they are Iridium spark plugs and could probably go even longer that that. I had the Iridium spark plugs replaced for the first time on my 00 LS at 120,000 miles a few weeks ago and the plugs showed no sign of deterioration ... and the car doesn't run any better with new Iridium plugs -- it ran perfectly with the old plugs. "Normally" the timing belt change includes replacing the water pump, the tensioner, two idlers, a few O-rings and maybe a few other small parts -- at least those were the additional parts replaced during the three timing belt changes I've had done on Lexus V8 cars. The last timing belt change I had done (on a 2000 LS400) cost $780 including the above mentioned parts at an indie shop specializing in Lexus with the work done by a former Lexus dealer mechanic. I'm guessing the cost will be similar for an LX470. Quote Link to comment Share on other sites More sharing options...
youbetcha! Posted March 8, 2010 Author Share Posted March 8, 2010 Attached are the 90K maintenance requirements for a 2003 LX470 from the owners section of https://www.lexus.comA maintenance booklet containing these requirements should have come with your LX. The first scheduled spark plug replacement for your 03 LX is 120,000 miles -- they are Iridium spark plugs and could probably go even longer that that. I had the Iridium spark plugs replaced for the first time on my 00 LS at 120,000 miles a few weeks ago and the plugs showed no sign of deterioration ... and the car doesn't run any better with new Iridium plugs -- it ran perfectly with the old plugs. "Normally" the timing belt change includes replacing the water pump, the tensioner, two idlers, a few O-rings and maybe a few other small parts -- at least those were the additional parts replaced during the three timing belt changes I've had done on Lexus V8 cars. The last timing belt change I had done (on a 2000 LS400) cost $780 including the above mentioned parts at an indie shop specializing in Lexus with the work done by a former Lexus dealer mechanic. I'm guessing the cost will be similar for an LX470. Thanks for your help!! I know sometimes Owner Manuals adds a few things that dont necessarily need to be done.... Quote Link to comment Share on other sites More sharing options...
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