i have a '96 mitsubishi galant. it started having this problem quite suddenly. when i stop at the lights, i can hear the engine revving at 1800 rpm. if i go to park before shutting off the engine, it revs higher to 3000 rpm. is this something dangerous i need to bring it in for repair asap? i don't know much about car but i appreciate some response on possible causes.
2007-04-27 02:32:58 · 6 answers · asked by philos 1 in Cars & Transportation ➔ Maintenance & Repairs
While the engine is revving high remove the throttle cable @ the throttle shaft. If the RPM does not return to an idle, remove the air intake hose [in front of the throttle plate] Check that the butterfly is all the way closed. If so then replace the TPS.
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2007-04-27 02:40:14 · answer #1 · answered by Mr. T 7 · 1⤊ 0⤋
Sounds lika a throttle position sensor.When replacing it,make sure you take the part with you.I had a 1988 model of a different car,and my TPS sensor was bad.hen I went to the dealer for a replacement part,I found out that even though the same motor was being used for several years,there were different types of TPS part numbers.Even though I had boght the car used from a dealer in NJ,the TPS was a california emissions TPS(I swear this,I heard it right from the dealer and read this in the parts book).I never knew there could be such a variety.So bring it just in case,you just may need it for reference.Good Luck.
2007-05-04 03:50:15 · answer #2 · answered by bustov1965 4 · 0⤊ 0⤋
Most cars have a set number of revs that they idle at to prevent the car from stalling etc, this can be down to a faulty sensor or apparently a vacuum leek... but it's more likely a faulty sensor in a '96 I'd have thought.
2007-04-27 02:44:53 · answer #3 · answered by Rob Green 2 · 0⤊ 0⤋
TPS (Throttle positioning sensor) Most definately, it electronicly controls the idle. Either that or your idle is set too high, which usually has to do with a person and not just a fluke!
2007-05-01 12:44:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
try disconnecting the neg batt. cable for 20 seconds, cheapest fix of all is reset your computer. If not remedied, give it a tune up, feul filter, air filter, set timing, plugs, plug wires, oil and filter change, lube all bushings jus tfor good measure, crank her and give it a whirl. problem persists, i would say, test your o2 sensor. (all this assuming you have not turbo, or super)
if not any of these, your other sensors should all be checked, or your transmission. If automatic tranny, check the torque converter.
2007-05-04 12:55:15 · answer #5 · answered by jody g 1 · 0⤊ 0⤋
it might be the idle air control or the throttle position sensor.you might ask a mech. at the mitsubishi dealer,and see what he thinks it is.
2007-04-27 05:02:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋