thetonic55 Posted April 3, 2009 Share Posted April 3, 2009 I have a problem with my 92 Lexus ls400. I start the car and its just fine but after i hit the gas the rpmgs dont drop back down. Ive I reve it to 4k rpms, it will very slowly fall back down to 1k rpgs where its sapose to be idleing. It seems like the something is sticking after hitting the gas any ideas? Quote Link to comment Share on other sites More sharing options...
jcrome04 Posted April 3, 2009 Share Posted April 3, 2009 I'd say clean the throttle body. Maybe It's so gunked up it's sticking slightly. Here's mine. http://us.lexusownersclub.com/forums/index...ttle+body+clean Quote Link to comment Share on other sites More sharing options...
amcdonal86 Posted April 3, 2009 Share Posted April 3, 2009 I have a problem with my 92 Lexus ls400. I start the car and its just fine but after i hit the gas the rpmgs dont drop back down. Ive I reve it to 4k rpms, it will very slowly fall back down to 1k rpgs where its sapose to be idleing. It seems like the something is sticking after hitting the gas any ideas? This is after warmup? Quote Link to comment Share on other sites More sharing options...
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