Question about 2004 Hyundai Santa Fe

1 Answer

Light came on after an hour and a half drive. Not

Light came on after an hour and a half drive. Not blinking. Someone suggested unscrewing gas cap and then rescrewing, but light still comes on after starting car, in park.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,986 Answers

If the light was flashing when it came on, then it means your engine is misfiring.

A solid light can mean anything. (bad gas cap to a bad transmission)

This light comes on when the computer detects a fault of some sort in its diagnostic tests. If it keeps detecting this issue, the light will remain on. If the light turns off, then it has detected that the issue may no longer be present.

In order to find out what the exact reason was for your light, You need to have your car computer scanned to retrieve the code that the computer would have stored when the light triggered. Most garages will do this free of charge. The code will tell you what may have caused the light to initially go

Posted on Oct 05, 2009


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

How to replace gas cap

Step 1 - Determine Your Type of Gas Cap Before acquiring a new one, think about whether you need a gas cap that locks to prevent a gas thief from stealing your gas. But keep in mind, if you put one of these caps on your car, your spouse or children who put gas in your car will need the gas cap key.
Step 2 - Remove the Cap Retention Ring When you actually replace your gas cap, you may need to remove a retention ring that keeps the cap attached to your car. If you do, you can remove it simply by using a pair of needle-nose pliers. Just slip one tip of those pliers under the ring edge; then close the pliers and pull the ring off the old cap and slip it over the new cap.
Step 3 - Check the Warning Sensor Light Your car may have a sensor light that will illuminate when you change your cap. If so, drive your car a few miles to see if the light goes off. If it doesn't, see your repair mechanic to fix the problem

Aug 17, 2015 | 2002 GMC Envoy

2 Answers

How to reset check gas cap prompt

No idea to be honest as this is a thing we dont have on europeon vehicles but try disconnecting the battery and joining the leads together for a half hour then reconnect the battery and see if this clears the fault

Apr 04, 2013 | 2005 Pontiac Grand Prix

1 Answer

Hi I have an 01 Jeep Wrangler with several issues. The biggest one is that the check engine light comes on and stay on for weeks at a time (much more often in cold and wet temperatures, it blinks while I...


Most likely a small evaporative leak will be from the gas cap. Replace the cap, then leave your battery unhooked for about a half hour to clear the code.

I find I have to replace my cap every couple of years.

Jan 27, 2011 | 2001 Jeep Wrangler

1 Answer

2005 ford f150 how to reset gas cap code

Try taking the battery cable off the positive side and turning the lights on to drain any left over power thats holding in the computer. By doing this and waiting a half an hour it should then reset your cars computer back to default settings. Just connect the battery back up after a time. I take it you got the factory oem gas cap back on it? If that doesn't work then call a ford dealership and ask to talk with a technician.

Apr 15, 2010 | 2005 Ford F-150

1 Answer

My warning light came on after i got gas/my

Not sure why the security light did not come on. But I'd start with the warning light.

There is a pressure sensor that is affected by the gas cap. If the cap was not on properly it will sense it and trigger the waring light.

Unscrew the gas cap and reinstall. Drive for a while and the light should go out.

Sometimes the computer will not clear the code. If this happens disconnect the negative terminal on the battery. Leave for half an hour or so and reconnect. This can delete the code sometimes.

Mar 07, 2010 | 1996 Nissan Maxima

1 Answer

The engine runs fine until it get to half a tank of gas.

I wonder if it could be that the tank's not getting vented properly... have you tried just taking the gas cap off and replacing it, without adding fuel? is there a suction sound when you take the cap off?

Aug 15, 2009 | 2001 Dodge Durango

3 Answers

Gas Cap Error with Check Engine light

By "Replace the gas cap", do you mean put it back on, or buy another one? If you fuel these trucks with the engine running, or don't tighten the gas cap, the light will come on. It will also come on when the seal in your gas cap goes bad. I have had to replace the gas cap on my jeep and dodge already. It fixed the problem both times.

Jul 07, 2009 | 2007 Dodge Ram 1500 Quad Cab Sport

1 Answer

Gas cap light is on and cap is tighten and secure

disconnect and reconnect the - battery cable. 

Mar 31, 2009 | 2004 Volkswagen Jetta

1 Answer

2.2 96 Sunfire will fail to start or if starts will miss.

From the way it sounds you have a fuel pump going out.The fuel pump on your vehicle is located in the gas tank .the gas tank has to be removed from the vehicle to replace the pump.

Mar 09, 2009 | 1995 Pontiac Sunfire

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

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts


Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8270 Answers

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

Answer questions

Manuals & User Guides