I have a 93 crown vic, it is reving high when i hit 30mph and will not kick back down. If it sits overnight and I go out in the morning then it is fine, until I reach 30mph. We have changed the Throttle position sensor, check for vacumm leaks and also check the kick down cable. We are lost.
Any one have any ideas it would be greatly appreciated.
Thank you
2007-05-30 11:38:43 · 4 answers · asked by dribbles777 1 in Cars & Transportation ➔ Car Makes ➔ Ford
have a 93 crown vic, it is reving high when i hit 30mph and will not kick back down. If it sits overnight and I go out in the morning then it is fine, until I reach 30mph. We have changed the Throttle position sensor, check for vacumm leaks and also check the kick down cable. Also my cruiese control stopped working. We are lost.
Any one have any ideas it would be greatly appreciated.
Thank you
2007-05-30 11:54:49 · update #1
idle air control valve...or AIC valve...an electrical componant that tells the computer what rpm to run the engine at.if it malfunctions it will cause the engine to excellerater eraticly & run at the wrong rpm....
2007-05-30 12:16:33 · answer #1 · answered by snozzberries 4 · 0⤊ 0⤋
this does sound like a transmission problem. my question is, is it shifting gears. almost sounds like the vacuum modulator is either bad or has no vacuum going to it. what happens is the transmission uses engine vacuum to properly shift gears. when you say it rpm's are high at 30 tells me that its not shifting. the only other way it shifts is by the governor and then you have to rev right through it which isnt good. crawl under the car and look for a vacuum line going to the trans, while its running see if there is vacuum there, if it is good chance its the modulator.....good luck
2007-05-30 12:54:56 · answer #2 · answered by Christian 7 · 0⤊ 0⤋
Be a little more specific please. Does the engine keep revving at 30 mph like it's not shifting, or does the car shift and the engine rpms stay high, like even at the next stop light?
This will help identify the area of the concern, be it engine or trans.
2007-05-30 12:07:45 · answer #3 · answered by Anonymous · 0⤊ 1⤋
sounds like the transmission. try transtune and change the transmission fluid and filter. if still doing same thing take to transmission shop and let them test it. most shops will test it for free.
2007-05-30 11:44:34 · answer #4 · answered by madskykk 2 · 0⤊ 1⤋