Question about 2004 Lexus RX 330

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Dashboard works intermittently. Engine wont fire for awhile after about one hours use. Will start after a "cooldown" period of about 15-30 minutes.

I have a 1993 LEXUS 400 LS. The car has two recurrent problems : 1) the instrument cluster goes on and off and then totally off after about 15 minutes. On hot days it may not illuminate from the start. This problem was "fixed" once by Lexus of Kendall - the circuit board was replaced. Within 10,000 miles of use the problem recurred and Lexus would not agree to take responsibility and required me to pay anew to take care of the problem. I took the car somewhere else and paid $2,000 plus. The problem came back a few thousand miles later. The car has only around 50,000 miles of use, mainly because I,m afraid to use it and not be able to see the instruments, especially the speedometer. 2) After about an hour of driving if the ignition is turned off, the engine will not restart. It will fire once and cut off immediately, as though there is a fuel supply peroblem. After that it will restart after about a 15 minute period,1/2 hour or longer on a hot day. This problem had been "diagnosed" and "corrected" by the same "Lexus" shop that last repaired the dashboard problem. They replaced the computer which is located behind the glovebox. The problems persist. The car is on the third cmputer. The car is still in showroom condition,with only 50,000 miles, and otherwise runs "like a dream".I want to keep this car. What can be done. Lexus has not been very supportive or accountable. HELP !! Thank you MIKE KING

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  • hughking2 May 25, 2009

    I dont think the ign. switch is the problem. with everything else turned off I still get no restart.Also,the switch does not get unduly hot. Thanks however for your suggestion.

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I have a 1993 lexus ls 400 and dash will not lite up or the radio and climate control panel as well

Posted on Nov 12, 2009

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I am not a Lexus expert, instead I am a Ford expert. However, I expeienced this type of problem once on a Ford and it ended up being the ignition switch, not the key cylinder but the electrical part. The ignition switch handles all the current flow for everthing that comes on when the key is turned to "ON".
WHen the current flow got heavy with the a/c blower on high, it overheated the switch. Ended up replacing the switch and installing a 12 gauge wire on the switch to act as a heat sink for the wire that feeds the blower motor.
Motors, rear defroster, horns and cig lighter take a lot of current to run.

good luck. report back on findings. I'm curious.

Posted on May 24, 2009

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