Question about 2004 Hyundai Santa Fe

1 Answer

When I start the engine from cold it runs on high revs too long

The engine revs at 1500-1700 rpm untill its warm, should it not idle at 850 rpm even when cold, if so what is the problem and how can i fix it

Posted by on

  • Anonymous Jan 21, 2009

    i have the same problem, but after the engine warms up fo awhile i shut the engine off and restart...everything is ok then. i'm going to the shop tomorrow...sounds like O2 sensor?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 101 Answers

Hi ..... This sounds as if it's fitted with an automatic choke, as long as the revs drop when it's warm there is nothing to worry about. The indication when these start to go wrong is that the car won't start when cold ................ even then any decent mechanic can fit a normal/manual choke.

Posted on Jan 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

High rev at cold (winter cold!) idle


Your toyota technician should know what a "cold starting solenoid" is. It is the little thing that works your throttle until the motor warms up and something else takes over. I'd suggest going to another technician.

Nov 28, 2013 | 2003 Toyota Corolla

1 Answer

Idle problem integra


check the MAP sensor (manifold absolute pressure). The ECM (car computer) uses that to keep idle at minimum 750 RPM. It's normal for it to run high when cold. These small 4 banger motors typically run hot, and they won't run right IF they're NOT running hot, ergo the idle is usually high when it is cold so as to cause it to warm up quicker. If the RPM's drop below 750, suspect the MAP sensor, &/or ECM.

Apr 18, 2013 | 1995 Acura Integra Coupe

1 Answer

Saab 9-5 need to give alittle throttle for cold engine start


the idle air control valve may be bad or just needs cleaned out. idle air control valve acts the same as a choke. if it is messing up it will cause engine not to run right.

Jan 27, 2010 | 2008 Saab 9-5

1 Answer

High rev, rough idle in golf


If your car is fuel injection,try changing the cold start temp sender.

Jul 17, 2009 | 1997 Volkswagen Golf

1 Answer

Idle out of control.


check all your vacuum hoses and the throttle body itself for a vacuum leaks if the hoses replace as nessasary if to check for throttle body get can of carb cleaner and spray around base of throttle body and sides not in it if idle raises you have a vacuum leak goto a good parts store and ask for a rebuild kit don't goto auto zone or advance they don't carry them

Apr 22, 2009 | Chevrolet Sportvan Cars & Trucks

1 Answer

Wondering what rpm should a 2002 jetta tdi be idling at?right now it seems at 850 to 900 which seems a bit high. i would figure it to be normal at 550 to 650 , any help is appreciated.


when cold it will idle a tad higher 850 - 900 is normal cold , and around 600 warm. if it is idleing high after warm up then check for excessive coke<carbon> build up in intake and throttle valve.

Mar 23, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

Not reving high on cold start


Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Feb 06, 2009 | 1998 Volkswagen Jetta

1 Answer

High idle at starting


Sounds like you have a vacuum leak in the air intake side. Check all your small and large hoses around the throttle body. Also check your idle air valve....cylindrical device connected to the the air box at the front of the engine.

Sep 28, 2008 | 1996 Volvo 850

Not finding what you are looking for?
2004 Hyundai Santa Fe Logo

Related Topics:

753 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...