Question about 2001 Hyundai Accent

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Idling too high - hard to stop

The car has started to idle too high - hard to stop - wants to keep going even when applying brakes

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Sounds silly but check the floormat see if its under the gas pedal.

Posted on Jun 06, 2010

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Posted on Jan 02, 2017

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'96 Mystique 2.0 trouble with idle. replaced idle mixing valve. I don't get any codes, I have to shift to neutral at a stop sign or light to keep from stalling. It gets real rough almost a lope.


troubles at lights may very well mean a vacuum leak from a faulty brake booster
test by stopping and then applying the park brake and taking your foot of the brake pedal
you can do this test in the garage
start the engine , apply the park brake , place in drive
if it idles alright , put you foot on the brake
if it plays up , replace the brake booster

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Why does my 97 ford expedition keeps turning off when I apply the break


Try to check short on brake pedal stop light sensor and see if something catches accelerator pedal..

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1993 Oldsmobile Bravada braking is causing the engine to stutter and sometimes shut off. Brakes are also hard to engage, engine is idling oddly, it has begun to shut off when turning the wheels when...


hard brake pedal and the engine is idling rough usually indicates the power brake booster has gone bad. the booster has vacuum going to it from the engine so if the diaphragm in the booster starts leaking then it affects engine performance.

Jul 16, 2011 | 1993 Oldsmobile Bravada

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When u start it it idles high and when u are stopped at a light or in traffic u have to hold brake 2x as hard as normal cuz the high idle makes it want to keep on going. it does not ever stop idiling...


You do not state year or model. Many Chevrolets have electric idle control, and it could be out of adjustment. Also, a loose vacuum line could increase the idle by a significant amount. At 2000 rpm, when stopped, the engine really wants to drag the car forward, hence the extra effort to keep it stopped. Furthermore, dragging the vehicle forward continuosly will eventually damage the automatic transmission torque converter.

Nov 19, 2010 | Chevrolet S 10 Cars & Trucks

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My Hyundai Accent GL is beginning to idle to high, when driving


I think I would seek a different opinion from a shop that has a good reputation. This sounds like 'make-work' to me. We have several shops in our area that are known for doing the same thing! Service costs are high enough with trying to gouge someone. Good luck!

Jun 06, 2010 | 2001 Hyundai Accent

1 Answer

My car slams when put into drive. is it the idle


Yes, sounds like the idle speed is too high. If you keep driving like that, you will fry the torque converter / turbine. Since idle is computer controlled, you will have to take it for service tune up. There is one possibility that the rich, high rpm idle used for cold start is not disengaging properly after the engine warms up. Air conditioning will raise the idle speed by a couple hundred rpm, so avoid using it until you have the problem fixed. BTW.....warm engine rpm in idle, and neutral should be around 700-800. Anything over 900-1100 will result in a hard shift into 1st gear and dragging at stop lights.

Feb 16, 2010 | 2002 Chevrolet Malibu

1 Answer

02 jeep grand Cherokee 6 cyl seems to idle too high. When stopping ,vehicle wants to keep pulling forward and have to apply brakes harder to stop vehicle. Very troublesome in snowy conditions.


check for vacum leaks using a spray bottle of water  when the idle frops you found it  if water wont work try starting fluid or carb cleaner  if useing these the idle may increase  when you find it  replace/repair the hose and see if its still happending  could also be a combination of things  idle speed control motor idle air control motor  mass air flow sensor  good luck    

Mar 28, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Very high idle


probably is brake booster if you can hear hissing sound, would not advise disconnecting hose, would be extremely hard to stop the vehicle, a dangerous situation. also check for vaccum leaks on intake manifold. follow brake booster hose to engine and check for leak from there

Nov 28, 2008 | 1994 Chevrolet S-10 Blazer

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