Question about 1997 Hyundai Sonata

2 Answers

When cold car will not idle without surging.

Rpms will fluctuate between 2000-3000 until warm

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 921 Answers

Clean your IAC (idle air control) and clean the throttle body and plates. also check all your vacuum hoses you will usually on older car have small deteriorating cracks in them, i found a crack once leading to my MAP (mass air pressure) sensor.

Posted on May 09, 2010

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 110 Answers

Idle air control motor bad

Posted on May 09, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What can cause a fluctuating idle on a cold start until warm then idles normal after that on my1990 Ford probe


The Idle Air Adjust Valve sounds like it is stuck closed and you have an air leak in that system.

May 06, 2015 | Ford Cars & Trucks

1 Answer

What can cause a fluctuating idle on a cold start until warm then idles normal after that


It might help us to know what the make, model and year of your car is.
Without knowing that, a generic answer is all we can offer.
Could be the temp sensor
vacuum leak
or other. . .

May 06, 2015 | Cars & Trucks

1 Answer

Idle fluctuates when cold 93 bonneville


Its cold start issues:----
Go through the list of help links mentioned below:----

Click the link :----



Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

----------

Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

--------------

Ford explorer 4.0 will not idle when cold?

http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html

--------

Automatic transmission shift lever hard to move on cold mornings?

http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html

----------

Car won't start when cold?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html

-----------
These will help.
Thanks.

Nov 28, 2012 | Cars & Trucks

2 Answers

Chevy Malibu Cold Idle Problem


Check the water coolant thermostat. If it is stuck in the "open" position you are heating up all the water in the coolant system and this will take time. The thermostat keeps the water in the engine until warmed up to almost normal running temperature, only then does it allow the coolant to enter the radiator.

Apr 05, 2017 | 2003 Chevrolet Malibu

2 Answers

Surging during warm up


try cleaning the throttle body.

Apr 14, 2009 | 1991 Honda Accord

2 Answers

4 cyl Engine starts and idles ok...give it throttle and it dies


I need to get a clear mental picture of what exactly is happening.

With this said, you stated that the car "runs fine" until warmed up.

Q: When you start the car when cold it idles fine?
Q: If you allow the car to idle until "fully" warmed does the car stall?
Q: As the car begins to warm up, Does the RPM fluctuate abnormally?
Q: Does the car Only stall when you press on the gas pedal or does it stall just sitting and idling in addition to pressing the gas pedal?
Q: If you can drive it while cold does the car stall during acceleration when warm or only at Stop Signs / Lights?
Q: If you wait 20min or so, can you start the car again?
Q: How many miles are on the car?

Mar 27, 2009 | 1995 Toyota Camry

1 Answer

Cold Idle Surge


sounds like you have a vacumn leak some where need to find that first

Jun 19, 2008 | 1999 Honda Prelude

Not finding what you are looking for?
1997 Hyundai Sonata Logo

Related Topics:

189 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides

Loading...