Simple Posted October 5, 2005 Share Posted October 5, 2005 My wife still insists it is ok to drive another 40 miles after the fuel light comes on. So about every 2 months I have to dish out cash to get the throttle body cleaned out. We finally came to agreement. Fill up tank every 200 miles. The problem is... The car still has a rough time starting, even after the throttle body is cleaned. Could a dirty fuel filter be causing the problems? Should I replace the plugs? 1999 RX 300 .....please advise. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted October 5, 2005 Share Posted October 5, 2005 A dirty fuel filter will not clog your throttle body. It is very common for the engine you have to carbon the intake manifold easily. I would invest in a $10 tool kit and learn to spray the cleaner in yourself for about $4 every couple months. I run my tanks bone dry in both of my Lexus and my Honda with no issues of a fuel filter needing to be changed. Quote Link to comment Share on other sites More sharing options...
bluestu Posted October 5, 2005 Share Posted October 5, 2005 I was having a problem with my RX starting and went to Advance Auto Parts and they suggested I try a bottle of Sea Foam engine/injector cleaner. I mixed it with about 8 gallons of gas and it immediately took care of the problem. The car runs great!!! I think the Sea Foam cleaner worked much better than some of the other high end fuel system cleaners I have tried, and it is O2 sensor safe. I usually add a bottle of fuel system cleaner about every 5kmi.. Quote Link to comment Share on other sites More sharing options...
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