supra steve Posted February 1, 2009 Share Posted February 1, 2009 got a 93 tt auto and while overtaking today the revs just went up to the red line and jammed.didn't change gear either.had to knock it into neutral to slow down.when i knocked it into neutral the revs still bounced around the red line.had to turn engine off and coast to a stop incase the engine blew.popped the bonnet and the throttle linkage(sorry,dont know the correct name.its the part next to the throttle cable you can see in the engine bay) had jammed back.after that everything was fine.tried again to jam it back from the engine bay itself and there is nothing i could find that was sticking.got me stumped and nervous to put my foot to the floor again.any help would be great guys. Quote Link to comment Share on other sites More sharing options...
sypher_44 Posted February 2, 2009 Share Posted February 2, 2009 somthning jammed the throttle cable... happend on my old honda once... is almost did it in my pants... lucky it was a 86 hp old crap maybe it was you crusie controler that went nuts Quote Link to comment Share on other sites More sharing options...
Brad88 Posted February 2, 2009 Share Posted February 2, 2009 had this happen to me in a beemer once, turned out the spring behind the pedal on the floor gave out and was holding the throttle wide open. Quote Link to comment Share on other sites More sharing options...
miko_supra Posted February 2, 2009 Share Posted February 2, 2009 Just check they whole throttle linkage. Might be worth removing the whole cable assy and having a good look at it, possible spray some lubricant as far down as you can in the cable sleeve. Quote Link to comment Share on other sites More sharing options...
supra steve Posted February 11, 2009 Author Share Posted February 11, 2009 got this from someone i know.hopefully help anyone else out this happens to. "had this happen a few times in various cars, predominantly in the winter, never a plesant experience. usually caused by 3 things, moisture in the throttle body freezing and jamming it, though unless your intyercooler is absolutely immense, this is usually restricted to NA cars.(quite sure supra throttles are water heated anyways to prevent this) crud in the throttle body jamming it or gumming up the bearings finally an issue with the throttle cable or cruise controll cable (where fitted) detach the throttle cable and have someone press the accelerator by hand while you pull the cable at the throttle, go back and forth, see if its sticking, if it is, replace it, dont be tempted to grease it up or anything, as youv discovered, it could kill you., next up is the throttle body, again, cable detached, swing the throttle through its fill sweep and see if it sticks atall, take the boost hose off and have a look inside, is it dirty? if its atall suspect, take it off, clean it with some carb cleaner, and try and get some light oil (like 3 in 1) into the bearings(too light an oil will jsut evaporate, like wd40, and to heavy an oil wont penetrate the bearing). on supras teh throttle assembly is quite a bulky thing, with lots of stuff hanging off it, but if your methodical it isnt to hard to remove. if it happens again, source a decent second hand one and jsut replace it, one of the bushings the throttle spindle sits on could have abnormal wear and be binding as a result." Quote Link to comment Share on other sites More sharing options...
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